[INFO] cloning repository https://github.com/bnjbvr/cooler_couleur
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bnjbvr/cooler_couleur" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fcooler_couleur", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fcooler_couleur'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed4bf64009d26f34c868d3b397ad7d202eab8bed
[INFO] checking bnjbvr/cooler_couleur against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fcooler_couleur" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bnjbvr/cooler_couleur 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 git repo https://github.com/bnjbvr/cooler_couleur
[INFO] finished tweaking git repo https://github.com/bnjbvr/cooler_couleur
[INFO] tweaked toml for git repo https://github.com/bnjbvr/cooler_couleur written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bnjbvr/cooler_couleur already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 31ea869f169822e3e42014435254eb68afff750db16cd10ae7d2953e9019024f
[INFO] running `Command { std: "docker" "start" "-a" "31ea869f169822e3e42014435254eb68afff750db16cd10ae7d2953e9019024f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31ea869f169822e3e42014435254eb68afff750db16cd10ae7d2953e9019024f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ea869f169822e3e42014435254eb68afff750db16cd10ae7d2953e9019024f", kill_on_drop: false }`
[INFO] [stdout] 31ea869f169822e3e42014435254eb68afff750db16cd10ae7d2953e9019024f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a9c51406df9d510b118a9fd765a889f9fb48774030fcb4e66b8f1b6da8c4ff96
[INFO] running `Command { std: "docker" "start" "-a" "a9c51406df9d510b118a9fd765a889f9fb48774030fcb4e66b8f1b6da8c4ff96", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]     Checking cooler_couleur v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> lib/src/image.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> lib/src/image.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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]     Checking coolercouleur-bin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.82s
[INFO] running `Command { std: "docker" "inspect" "a9c51406df9d510b118a9fd765a889f9fb48774030fcb4e66b8f1b6da8c4ff96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c51406df9d510b118a9fd765a889f9fb48774030fcb4e66b8f1b6da8c4ff96", kill_on_drop: false }`
[INFO] [stdout] a9c51406df9d510b118a9fd765a889f9fb48774030fcb4e66b8f1b6da8c4ff96
[INFO] checking bnjbvr/cooler_couleur against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fcooler_couleur" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bnjbvr/cooler_couleur on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bnjbvr/cooler_couleur
[INFO] finished tweaking git repo https://github.com/bnjbvr/cooler_couleur
[INFO] tweaked toml for git repo https://github.com/bnjbvr/cooler_couleur written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bnjbvr/cooler_couleur already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 134af2479a0ab4bea8c4a6efc62fa8630509d8c29f567ee251003bb6919c6fd0
[INFO] running `Command { std: "docker" "start" "-a" "134af2479a0ab4bea8c4a6efc62fa8630509d8c29f567ee251003bb6919c6fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "134af2479a0ab4bea8c4a6efc62fa8630509d8c29f567ee251003bb6919c6fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "134af2479a0ab4bea8c4a6efc62fa8630509d8c29f567ee251003bb6919c6fd0", kill_on_drop: false }`
[INFO] [stdout] 134af2479a0ab4bea8c4a6efc62fa8630509d8c29f567ee251003bb6919c6fd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1714bf3e529c0d8f81cd10925f969e41f492e83784e9be1e36f9dc9fa7aa5b1
[INFO] running `Command { std: "docker" "start" "-a" "c1714bf3e529c0d8f81cd10925f969e41f492e83784e9be1e36f9dc9fa7aa5b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]     Checking cooler_couleur v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> lib/src/image.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> lib/src/image.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking coolercouleur-bin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `image` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image;
[INFO] [stdout]   |     ^^^^^ the item `image` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 11.82s
[INFO] running `Command { std: "docker" "inspect" "c1714bf3e529c0d8f81cd10925f969e41f492e83784e9be1e36f9dc9fa7aa5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1714bf3e529c0d8f81cd10925f969e41f492e83784e9be1e36f9dc9fa7aa5b1", kill_on_drop: false }`
[INFO] [stdout] c1714bf3e529c0d8f81cd10925f969e41f492e83784e9be1e36f9dc9fa7aa5b1