[INFO] cloning repository https://github.com/filcuc/thumbnailer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/filcuc/thumbnailer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffilcuc%2Fthumbnailer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffilcuc%2Fthumbnailer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ccd8bf8e8da8d0c5d93debca5efca302a62f5f06
[INFO] testing filcuc/thumbnailer against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffilcuc%2Fthumbnailer" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/filcuc/thumbnailer on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/filcuc/thumbnailer
[INFO] finished tweaking git repo https://github.com/filcuc/thumbnailer
[INFO] tweaked toml for git repo https://github.com/filcuc/thumbnailer written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/filcuc/thumbnailer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex v0.4.0
[INFO] [stderr]   Downloaded cc v1.0.49
[INFO] [stderr]   Downloaded tiff v0.5.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded num-rational v0.3.0
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded strsim v0.9.2
[INFO] [stderr]   Downloaded bytemuck v1.2.0
[INFO] [stderr]   Downloaded rayon-core v1.6.1
[INFO] [stderr]   Downloaded rayon v1.2.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.19
[INFO] [stderr]   Downloaded image v0.23.6
[INFO] [stderr]   Downloaded png v0.16.5
[INFO] [stderr]   Downloaded deflate v0.8.4
[INFO] [stderr]   Downloaded syn v1.0.9
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded serde_derive v1.0.103
[INFO] [stderr]   Downloaded hermit-abi v0.1.3
[INFO] [stderr]   Downloaded shellexpand v1.0.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.0
[INFO] [stderr]   Downloaded md5 v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ee51abe48f7278658548d30dc7c867b3a80190ea7ebe74070466a9b6adcce5b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0ee51abe48f7278658548d30dc7c867b3a80190ea7ebe74070466a9b6adcce5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ee51abe48f7278658548d30dc7c867b3a80190ea7ebe74070466a9b6adcce5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee51abe48f7278658548d30dc7c867b3a80190ea7ebe74070466a9b6adcce5b", kill_on_drop: false }`
[INFO] [stdout] 0ee51abe48f7278658548d30dc7c867b3a80190ea7ebe74070466a9b6adcce5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13eecfcc701e1226dabad89c4602f4fdf0d90cb1c5532c5d8560e95bb27a2822
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13eecfcc701e1226dabad89c4602f4fdf0d90cb1c5532c5d8560e95bb27a2822", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling shellexpand v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling deflate v0.8.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling png v0.16.5
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rayon v1.2.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling jpeg-decoder v0.1.19
[INFO] [stderr]    Compiling ctrlc v3.1.3
[INFO] [stderr]    Compiling image v0.23.6
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling thumbnailer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `flag_workers`
[INFO] [stdout]   --> src/main.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     flag_workers: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "13eecfcc701e1226dabad89c4602f4fdf0d90cb1c5532c5d8560e95bb27a2822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13eecfcc701e1226dabad89c4602f4fdf0d90cb1c5532c5d8560e95bb27a2822", kill_on_drop: false }`
[INFO] [stdout] 13eecfcc701e1226dabad89c4602f4fdf0d90cb1c5532c5d8560e95bb27a2822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a88e855097e2b0197b20e1c1ed21d1b48d54f127f599dd7639ac395283def96
[INFO] running `Command { std: "docker" "start" "-a" "3a88e855097e2b0197b20e1c1ed21d1b48d54f127f599dd7639ac395283def96", kill_on_drop: false }`
[INFO] [stderr]    Compiling thumbnailer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `flag_workers`
[INFO] [stdout]   --> src/main.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     flag_workers: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "3a88e855097e2b0197b20e1c1ed21d1b48d54f127f599dd7639ac395283def96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a88e855097e2b0197b20e1c1ed21d1b48d54f127f599dd7639ac395283def96", kill_on_drop: false }`
[INFO] [stdout] 3a88e855097e2b0197b20e1c1ed21d1b48d54f127f599dd7639ac395283def96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 00e9c35305b9509cc5b62a93743052c219ee6d8c7375cab73bacdf659ae2e7f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00e9c35305b9509cc5b62a93743052c219ee6d8c7375cab73bacdf659ae2e7f7", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `flag_workers`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     flag_workers: Option<u32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `thumbnailer` (bin "thumbnailer" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/thumbnailer-34e2de7f264cfead)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test thumbnailer::tests::test_calculate_path_md5 ... ok
[INFO] [stdout] test thumbnailer::tests::test_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "00e9c35305b9509cc5b62a93743052c219ee6d8c7375cab73bacdf659ae2e7f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e9c35305b9509cc5b62a93743052c219ee6d8c7375cab73bacdf659ae2e7f7", kill_on_drop: false }`
[INFO] [stdout] 00e9c35305b9509cc5b62a93743052c219ee6d8c7375cab73bacdf659ae2e7f7