[INFO] fetching crate sdl2_mt 0.2.0...
[INFO] building sdl2_mt-0.2.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sdl2_mt 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate sdl2_mt 0.2.0
[INFO] finished tweaking crates.io crate sdl2_mt 0.2.0
[INFO] tweaked toml for crates.io crate sdl2_mt 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sdl2_mt 0.2.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding lazy_static v0.2.11 (available: v1.5.0)
[INFO] [stderr]       Adding sdl2 v0.30.0 (available: v0.38.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2166a5c187de54d238f1a4d76413d104659bd0821d62a5ba0c6cfa0d84f8607e
[INFO] running `Command { std: "docker" "start" "-a" "2166a5c187de54d238f1a4d76413d104659bd0821d62a5ba0c6cfa0d84f8607e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2166a5c187de54d238f1a4d76413d104659bd0821d62a5ba0c6cfa0d84f8607e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2166a5c187de54d238f1a4d76413d104659bd0821d62a5ba0c6cfa0d84f8607e", kill_on_drop: false }`
[INFO] [stdout] 2166a5c187de54d238f1a4d76413d104659bd0821d62a5ba0c6cfa0d84f8607e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b4476f749b9cabee657e1fdd7e089a69f21805ba39036b6254d440e463bef30
[INFO] running `Command { std: "docker" "start" "-a" "4b4476f749b9cabee657e1fdd7e089a69f21805ba39036b6254d440e463bef30", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.1.43
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr]    Compiling sdl2_mt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | / lazy_static! {
[INFO] [stdout] 181 | |     static ref MT_HANDLE: Arc<Mutex<Sdl2Mt>> = {
[INFO] [stdout] 182 | |         let (tx, rx) = mpsc::channel();
[INFO] [stdout] 183 | |         thread::spawn(move || sdl_handler(rx));
[INFO] [stdout] ...   |
[INFO] [stdout] 186 | |     };
[INFO] [stdout] 187 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SdlCreateWindow = FnMut(&mut Sdl, &mut VideoSubsystem) -> Option<render::WindowCanvas> + Send;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SdlCreateWindow = dyn FnMut(&mut Sdl, &mut VideoSubsystem) -> Option<render::WindowCanvas> + Send;
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 | type SdlHandleEvent = FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>, &Event) -> bool + Send;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 | type SdlHandleEvent = dyn FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>, &Event) -> bool + Send;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SdlLambda = FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>) + Send;
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SdlLambda = dyn FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>) + Send;
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4b4476f749b9cabee657e1fdd7e089a69f21805ba39036b6254d440e463bef30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b4476f749b9cabee657e1fdd7e089a69f21805ba39036b6254d440e463bef30", kill_on_drop: false }`
[INFO] [stdout] 4b4476f749b9cabee657e1fdd7e089a69f21805ba39036b6254d440e463bef30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b245bb77b2f95f4fca7c4b8bc7ba0e8814a1fa3a01df860add1fe617693946a5
[INFO] running `Command { std: "docker" "start" "-a" "b245bb77b2f95f4fca7c4b8bc7ba0e8814a1fa3a01df860add1fe617693946a5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling sdl2_mt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | / lazy_static! {
[INFO] [stdout] 181 | |     static ref MT_HANDLE: Arc<Mutex<Sdl2Mt>> = {
[INFO] [stdout] 182 | |         let (tx, rx) = mpsc::channel();
[INFO] [stdout] 183 | |         thread::spawn(move || sdl_handler(rx));
[INFO] [stdout] ...   |
[INFO] [stdout] 186 | |     };
[INFO] [stdout] 187 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SdlCreateWindow = FnMut(&mut Sdl, &mut VideoSubsystem) -> Option<render::WindowCanvas> + Send;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SdlCreateWindow = dyn FnMut(&mut Sdl, &mut VideoSubsystem) -> Option<render::WindowCanvas> + Send;
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 | type SdlHandleEvent = FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>, &Event) -> bool + Send;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 | type SdlHandleEvent = dyn FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>, &Event) -> bool + Send;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SdlLambda = FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>) + Send;
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SdlLambda = dyn FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>) + Send;
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | / lazy_static! {
[INFO] [stdout] 181 | |     static ref MT_HANDLE: Arc<Mutex<Sdl2Mt>> = {
[INFO] [stdout] 182 | |         let (tx, rx) = mpsc::channel();
[INFO] [stdout] 183 | |         thread::spawn(move || sdl_handler(rx));
[INFO] [stdout] ...   |
[INFO] [stdout] 186 | |     };
[INFO] [stdout] 187 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SdlLambda = FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>) + Send;
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SdlLambda = dyn FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>) + Send;
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SdlCreateWindow = FnMut(&mut Sdl, &mut VideoSubsystem) -> Option<render::WindowCanvas> + Send;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SdlCreateWindow = dyn FnMut(&mut Sdl, &mut VideoSubsystem) -> Option<render::WindowCanvas> + Send;
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 | type SdlHandleEvent = FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>, &Event) -> bool + Send;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 | type SdlHandleEvent = dyn FnMut(&mut Sdl, &mut HashMap<u32, render::WindowCanvas>, &Event) -> bool + Send;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/custom_create_window.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     let mut canvas = windows.get_mut(&window).unwrap();
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/custom_create_window.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     let mut canvas = windows.get_mut(&window).unwrap();
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/basic.rs:42:25
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     let mut canvas = windows.get_mut(&window).unwrap();
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/basic.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |                     let mut canvas = windows.get_mut(&window).unwrap();
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b245bb77b2f95f4fca7c4b8bc7ba0e8814a1fa3a01df860add1fe617693946a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b245bb77b2f95f4fca7c4b8bc7ba0e8814a1fa3a01df860add1fe617693946a5", kill_on_drop: false }`
[INFO] [stdout] b245bb77b2f95f4fca7c4b8bc7ba0e8814a1fa3a01df860add1fe617693946a5
