[INFO] cloning repository https://github.com/vicanso/image-optim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vicanso/image-optim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicanso%2Fimage-optim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicanso%2Fimage-optim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fddbb0e7837be2cab282ab564c42ad75578983b6
[INFO] checking vicanso/image-optim against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicanso%2Fimage-optim" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vicanso/image-optim 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/vicanso/image-optim
[INFO] finished tweaking git repo https://github.com/vicanso/image-optim
[INFO] tweaked toml for git repo https://github.com/vicanso/image-optim written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vicanso/image-optim 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded substring v1.4.5
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[INFO] [stderr]   Downloaded lodepng v3.10.1
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[INFO] [stderr]   Downloaded imageoptimize v0.1.3
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[INFO] [stderr]   Downloaded image v0.24.9
[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] 2ff5f5645158236c8f042dbd0f3f4a34ddd76c3d1e2c25c0119c8f681eba3a2f
[INFO] running `Command { std: "docker" "start" "-a" "2ff5f5645158236c8f042dbd0f3f4a34ddd76c3d1e2c25c0119c8f681eba3a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ff5f5645158236c8f042dbd0f3f4a34ddd76c3d1e2c25c0119c8f681eba3a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff5f5645158236c8f042dbd0f3f4a34ddd76c3d1e2c25c0119c8f681eba3a2f", kill_on_drop: false }`
[INFO] [stdout] 2ff5f5645158236c8f042dbd0f3f4a34ddd76c3d1e2c25c0119c8f681eba3a2f
[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] 15e5a99e6ea23b96940e3539d72a278bbff0b067466678f3b6650b9372cd964b
[INFO] running `Command { std: "docker" "start" "-a" "15e5a99e6ea23b96940e3539d72a278bbff0b067466678f3b6650b9372cd964b", kill_on_drop: false }`
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[INFO] [stderr]     Checking imageoptimize v0.1.3
[INFO] [stderr]     Checking image-optim v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `shutdown_signal` is never used
[INFO] [stdout]   --> src/main.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 | async fn shutdown_signal() {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buffer`, `width`, and `height` are never read
[INFO] [stdout]   --> src/images.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct ImageInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 8  |     // rgba像素
[INFO] [stdout] 9  |     pub buffer: Vec<RGBA8>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 10 |     /// Width in pixels
[INFO] [stdout] 11 |     pub width: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 12 |     /// Height in pixels
[INFO] [stdout] 13 |     pub height: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shutdown_signal` is never used
[INFO] [stdout]   --> src/main.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 | async fn shutdown_signal() {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buffer`, `width`, and `height` are never read
[INFO] [stdout]   --> src/images.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct ImageInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 8  |     // rgba像素
[INFO] [stdout] 9  |     pub buffer: Vec<RGBA8>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 10 |     /// Width in pixels
[INFO] [stdout] 11 |     pub width: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 12 |     /// Height in pixels
[INFO] [stdout] 13 |     pub height: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6m 25s
[INFO] running `Command { std: "docker" "inspect" "15e5a99e6ea23b96940e3539d72a278bbff0b067466678f3b6650b9372cd964b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e5a99e6ea23b96940e3539d72a278bbff0b067466678f3b6650b9372cd964b", kill_on_drop: false }`
[INFO] [stdout] 15e5a99e6ea23b96940e3539d72a278bbff0b067466678f3b6650b9372cd964b
[INFO] checking vicanso/image-optim against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicanso%2Fimage-optim" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vicanso/image-optim 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/vicanso/image-optim
[INFO] finished tweaking git repo https://github.com/vicanso/image-optim
[INFO] tweaked toml for git repo https://github.com/vicanso/image-optim written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vicanso/image-optim 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 35bb8f2bae71d9a0f76ae43d46b6974caa298bc62142bae1e95f3c12612dda9d
[INFO] running `Command { std: "docker" "start" "-a" "35bb8f2bae71d9a0f76ae43d46b6974caa298bc62142bae1e95f3c12612dda9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35bb8f2bae71d9a0f76ae43d46b6974caa298bc62142bae1e95f3c12612dda9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35bb8f2bae71d9a0f76ae43d46b6974caa298bc62142bae1e95f3c12612dda9d", kill_on_drop: false }`
[INFO] [stdout] 35bb8f2bae71d9a0f76ae43d46b6974caa298bc62142bae1e95f3c12612dda9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a687effa0849add73b8d66925ceb695de8b37d716abbac911871edb08b97a049
[INFO] running `Command { std: "docker" "start" "-a" "a687effa0849add73b8d66925ceb695de8b37d716abbac911871edb08b97a049", kill_on_drop: false }`
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[INFO] [stdout] warning: function `shutdown_signal` is never used
[INFO] [stdout]   --> src/main.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 | async fn shutdown_signal() {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shutdown_signal` is never used
[INFO] [stdout]   --> src/main.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 | async fn shutdown_signal() {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buffer`, `width`, and `height` are never read
[INFO] [stdout]   --> src/images.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct ImageInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 8  |     // rgba像素
[INFO] [stdout] 9  |     pub buffer: Vec<RGBA8>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 10 |     /// Width in pixels
[INFO] [stdout] 11 |     pub width: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 12 |     /// Height in pixels
[INFO] [stdout] 13 |     pub height: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buffer`, `width`, and `height` are never read
[INFO] [stdout]   --> src/images.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct ImageInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 8  |     // rgba像素
[INFO] [stdout] 9  |     pub buffer: Vec<RGBA8>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 10 |     /// Width in pixels
[INFO] [stdout] 11 |     pub width: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 12 |     /// Height in pixels
[INFO] [stdout] 13 |     pub height: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 31s
[INFO] running `Command { std: "docker" "inspect" "a687effa0849add73b8d66925ceb695de8b37d716abbac911871edb08b97a049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a687effa0849add73b8d66925ceb695de8b37d716abbac911871edb08b97a049", kill_on_drop: false }`
[INFO] [stdout] a687effa0849add73b8d66925ceb695de8b37d716abbac911871edb08b97a049