[INFO] fetching crate amethyst_window 0.15.3...
[INFO] checking amethyst_window-0.15.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate amethyst_window 0.15.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate amethyst_window 0.15.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amethyst_window 0.15.3
[INFO] finished tweaking crates.io crate amethyst_window 0.15.3
[INFO] tweaked toml for crates.io crate amethyst_window 0.15.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 165 packages
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[INFO] [stderr]       Adding raw-window-handle v0.3.4 (latest: v0.6.0)
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[INFO] [stderr]       Adding redox_syscall v0.1.57 (latest: v0.5.1)
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[INFO] [stderr]       Adding winit v0.19.5 (latest: v0.29.15)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dlib v0.4.2
[INFO] [stderr]   Downloaded wayland-sys v0.21.13
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[INFO] [stderr]   Downloaded wayland-client v0.21.13
[INFO] [stderr]   Downloaded raw-window-handle v0.3.4
[INFO] [stderr]   Downloaded xml-rs v0.8.20
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[INFO] [stderr]   Downloaded objc v0.2.7
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[INFO] [stderr]   Downloaded amethyst_config v0.15.3
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[INFO] [stderr]   Downloaded rusttype v0.7.9
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[INFO] [stderr]   Downloaded raw-window-handle v0.4.3
[INFO] [stderr]   Downloaded ordered-float v1.1.1
[INFO] [stderr]   Downloaded rusttype v0.8.3
[INFO] [stderr]   Downloaded walkdir v2.5.0
[INFO] [stderr]   Downloaded memmap v0.7.0
[INFO] [stderr]   Downloaded downcast-rs v1.2.0
[INFO] [stderr]   Downloaded wayland-commons v0.21.13
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4d28d97d70853090693d9367e5576f25ff015a7924bdeb4ec630dcc863a8439
[INFO] running `Command { std: "docker" "start" "-a" "f4d28d97d70853090693d9367e5576f25ff015a7924bdeb4ec630dcc863a8439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4d28d97d70853090693d9367e5576f25ff015a7924bdeb4ec630dcc863a8439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4d28d97d70853090693d9367e5576f25ff015a7924bdeb4ec630dcc863a8439", kill_on_drop: false }`
[INFO] [stdout] f4d28d97d70853090693d9367e5576f25ff015a7924bdeb4ec630dcc863a8439
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5b5cfd0326304c7b17ea3d552c706929669a1c5c5af37e82af2932897313665
[INFO] running `Command { std: "docker" "start" "-a" "a5b5cfd0326304c7b17ea3d552c706929669a1c5c5af37e82af2932897313665", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking byteorder v1.5.0
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[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
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[INFO] [stderr]    Compiling maybe-uninit v2.0.0
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[INFO] [stderr]    Compiling serde v1.0.197
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]     Checking libloading v0.6.7
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[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling nix v0.14.1
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[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling cc v1.0.90
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[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tynm v0.1.10
[INFO] [stderr]    Compiling shred-derive v0.6.3
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
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[INFO] [stderr]     Checking mopa v0.2.2
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[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
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[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling regex v1.10.4
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[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking hibitset v0.6.4
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking shrev v1.1.3
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking specs v0.16.1
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]     Checking mint v0.5.9
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking specs-hierarchy v0.6.0
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking raw-window-handle v0.3.4
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling alga_derive v0.9.2
[INFO] [stderr]     Checking ron v0.5.1
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking amethyst_config v0.15.3
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking amethyst_error v0.15.3
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking amethyst_core v0.15.3
[INFO] [stderr]     Checking amethyst_window v0.15.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/system.rs:52:37
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn manage_dimensions(&mut self, mut screen_dimensions: &mut ScreenDimensions, window: &Window) {
[INFO] [stdout]    |                                     ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/system.rs:52:37
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn manage_dimensions(&mut self, mut screen_dimensions: &mut ScreenDimensions, window: &Window) {
[INFO] [stdout]    |                                     ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "a5b5cfd0326304c7b17ea3d552c706929669a1c5c5af37e82af2932897313665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b5cfd0326304c7b17ea3d552c706929669a1c5c5af37e82af2932897313665", kill_on_drop: false }`
[INFO] [stdout] a5b5cfd0326304c7b17ea3d552c706929669a1c5c5af37e82af2932897313665