diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e6abe374ba..8468ceb77c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -59,6 +59,10 @@ jobs:
           target: ${{ matrix.target }}
           override: true
 
+      - name: Disable optimisation profiles
+        if: matrix.toolchain == '1.36.0'
+        run: sed -i '/^\[profile.*build-override]$/,/^$/{/^#/!{/^$/!d}}' Cargo.toml
+
       - name: cargo check
         uses: actions-rs/cargo@v1
         with:
@@ -268,6 +272,11 @@ jobs:
           toolchain: ${{ matrix.toolchain }}
           target: ${{ matrix.target }}
           override: true
+
+      - name: Disable optimisation profiles
+        if: matrix.toolchain == '1.36.0'
+        run: sed -i '/^\[profile.*build-override]$/,/^$/{/^#/!{/^$/!d}}' Cargo.toml
+
       - name: cargo check
         uses: actions-rs/cargo@v1
         with:
@@ -287,6 +296,10 @@ jobs:
           toolchain: 1.36.0
           target: thumbv7m-none-eabi
           override: true
+
+      - name: Disable optimisation profiles
+        run: sed -i '/^\[profile.*build-override]$/,/^$/{/^#/!{/^$/!d}}' Cargo.toml
+
       - uses: actions-rs/cargo@v1
         with:
           use-cross: false
@@ -305,6 +318,10 @@ jobs:
           toolchain: 1.36.0
           target: thumbv6m-none-eabi
           override: true
+
+      - name: Disable optimisation profiles
+        run: sed -i '/^\[profile.*build-override]$/,/^$/{/^#/!{/^$/!d}}' Cargo.toml
+
       - uses: actions-rs/cargo@v1
         with:
           use-cross: false
diff --git a/book/en/src/by-example/resources.md b/book/en/src/by-example/resources.md
index b33ca9bbba..db7630ea36 100644
--- a/book/en/src/by-example/resources.md
+++ b/book/en/src/by-example/resources.md
@@ -11,7 +11,7 @@ All resources are declared as a single `struct` within the `#[app]`
 pseudo-module. Each field in the structure corresponds to a different resource.
 Resources can optionally be given an initial value using the `#[init]`
 attribute. Resources that are not given an initial value are referred to as
-*late* resources and are covered in more detail in a follow up section in this
+*late* resources and are covered in more detail in a follow-up section in this
 page.
 
 Each context (task handler, `init` or `idle`) must declare the resources it
@@ -31,7 +31,7 @@ access to a resource named `shared`.
 $ cargo run --example resource
 {{#include ../../../../ci/expected/resource.run}}```
 
-Note that the `shared` resource cannot accessed from `idle`. Attempting to do
+Note that the `shared` resource cannot be accessed from `idle`. Attempting to do
 so results in a compile error.
 
 ## `lock`
@@ -75,14 +75,14 @@ $ cargo run --example lock
 
 ## Late resources
 
-Late resources are resources that are not given an initial value at compile
-using the `#[init]` attribute but instead are initialized are runtime using the
+Late resources are resources that are not given an initial value at compile time
+using the `#[init]` attribute but instead are initialized at runtime using the
 `init::LateResources` values returned by the `init` function.
 
 Late resources are useful for *moving* (as in transferring the ownership of)
 peripherals initialized in `init` into interrupt handlers.
 
-The example below uses late resources to stablish a lockless, one-way channel
+The example below uses late resources to establish a lockless, one-way channel
 between the `UART0` interrupt handler and the `idle` task. A single producer
 single consumer [`Queue`] is used as the channel. The queue is split into
 consumer and producer end points in `init` and then each end point is stored
diff --git a/ci/script.sh b/ci/script.sh
index 7b86e52aa6..c9a9c05027 100644
--- a/ci/script.sh
+++ b/ci/script.sh
@@ -36,6 +36,12 @@ main() {
 
     mkdir -p ci/builds
 
+    # Current MSRV cannot handle profiles, remove compilation optimisations
+    if [[ $TRAVIS_RUST_VERSION == 1.*.* ]]; then
+        echo "Removing optimisation profiles"
+        sed -i '/^\[profile.*build-override]$/,/^$/{/^#/!{/^$/!d}}' Cargo.toml
+    fi
+
     if [ $T = x86_64-unknown-linux-gnu ]; then
         if [[ $TRAVIS_RUST_VERSION == 1.*.* ]]; then
             # test on a fixed version (MSRV) to avoid problems with changes in rustc diagnostics