[INFO] cloning repository https://github.com/bjrnt/fractals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bjrnt/fractals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbjrnt%2Ffractals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbjrnt%2Ffractals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f1752cd122c5ecdbc385d6920442e8331098071
[INFO] testing bjrnt/fractals against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbjrnt%2Ffractals" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bjrnt/fractals on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bjrnt/fractals
[INFO] finished tweaking git repo https://github.com/bjrnt/fractals
[INFO] tweaked toml for git repo https://github.com/bjrnt/fractals written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/bjrnt/fractals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 gif v0.9.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.11
[INFO] [stderr]   Downloaded serde v0.9.7
[INFO] [stderr]   Downloaded num_cpus v1.2.1
[INFO] [stderr]   Downloaded clippy v0.0.114
[INFO] [stderr]   Downloaded semver v0.2.3
[INFO] [stderr]   Downloaded num-iter v0.1.32
[INFO] [stderr]   Downloaded num-complex v0.1.35
[INFO] [stderr]   Downloaded color_quant v1.0.0
[INFO] [stderr]   Downloaded serde_codegen_internals v0.13.0
[INFO] [stderr]   Downloaded quote v0.3.12
[INFO] [stderr]   Downloaded matches v0.1.4
[INFO] [stderr]   Downloaded inflate v0.1.1
[INFO] [stderr]   Downloaded png v0.6.2
[INFO] [stderr]   Downloaded num-rational v0.1.35
[INFO] [stderr]   Downloaded num v0.1.36
[INFO] [stderr]   Downloaded num-bigint v0.1.35
[INFO] [stderr]   Downloaded syn v0.11.4
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.7
[INFO] [stderr]   Downloaded deque v0.3.1
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded rayon v0.6.0
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded serde_derive v0.9.7
[INFO] [stderr]   Downloaded unicode-normalization v0.1.4
[INFO] [stderr]   Downloaded serde_json v0.9.5
[INFO] [stderr]   Downloaded regex-syntax v0.4.0
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded deflate v0.7.4
[INFO] [stderr]   Downloaded adler32 v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.20
[INFO] [stderr]   Downloaded nom v1.2.4
[INFO] [stderr]   Downloaded num-traits v0.1.36
[INFO] [stderr]   Downloaded clippy_lints v0.0.114
[INFO] [stderr]   Downloaded num-integer v0.1.32
[INFO] [stderr]   Downloaded image v0.12.2
[INFO] [stderr]   Downloaded cargo_metadata v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8187a61e649723145cf8009bcc7f19ccdebd6674671da3b85944bc58763b33b0
[INFO] running `Command { std: "docker" "start" "-a" "8187a61e649723145cf8009bcc7f19ccdebd6674671da3b85944bc58763b33b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8187a61e649723145cf8009bcc7f19ccdebd6674671da3b85944bc58763b33b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8187a61e649723145cf8009bcc7f19ccdebd6674671da3b85944bc58763b33b0", kill_on_drop: false }`
[INFO] [stdout] 8187a61e649723145cf8009bcc7f19ccdebd6674671da3b85944bc58763b33b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35a5f43644b923dc0e74c41be193224ce992d84cda2d586f6390279fe4ce35c7
[INFO] running `Command { std: "docker" "start" "-a" "35a5f43644b923dc0e74c41be193224ce992d84cda2d586f6390279fe4ce35c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling adler32 v0.3.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.7
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling deflate v0.7.4
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling gif v0.9.0
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.2.1
[INFO] [stderr]    Compiling png v0.6.2
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling jpeg-decoder v0.1.11
[INFO] [stderr]    Compiling image v0.12.2
[INFO] [stderr]    Compiling fractals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Linear`
[INFO] [stdout]   --> src/animation.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Linear,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `easing`
[INFO] [stdout]   --> src/animation.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     easing: Easing
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.87s
[INFO] running `Command { std: "docker" "inspect" "35a5f43644b923dc0e74c41be193224ce992d84cda2d586f6390279fe4ce35c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a5f43644b923dc0e74c41be193224ce992d84cda2d586f6390279fe4ce35c7", kill_on_drop: false }`
[INFO] [stdout] 35a5f43644b923dc0e74c41be193224ce992d84cda2d586f6390279fe4ce35c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ddcea4a464ebe4d544a46cd24416363668b8ae96e46b8fd3686c7ea27a9eba3
[INFO] running `Command { std: "docker" "start" "-a" "8ddcea4a464ebe4d544a46cd24416363668b8ae96e46b8fd3686c7ea27a9eba3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fractals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Linear`
[INFO] [stdout]   --> src/animation.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Linear,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `easing`
[INFO] [stdout]   --> src/animation.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     easing: Easing
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "8ddcea4a464ebe4d544a46cd24416363668b8ae96e46b8fd3686c7ea27a9eba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ddcea4a464ebe4d544a46cd24416363668b8ae96e46b8fd3686c7ea27a9eba3", kill_on_drop: false }`
[INFO] [stdout] 8ddcea4a464ebe4d544a46cd24416363668b8ae96e46b8fd3686c7ea27a9eba3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c37b8472d485e5250c66ebc1eb28956bc0405722b82313d00c2cb32ccb2ca35e
[INFO] running `Command { std: "docker" "start" "-a" "c37b8472d485e5250c66ebc1eb28956bc0405722b82313d00c2cb32ccb2ca35e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `Linear`
[INFO] [stderr]   --> src/animation.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Linear,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `easing`
[INFO] [stderr]   --> src/animation.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     easing: Easing
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fractals` (bin "fractals" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.96s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fractals-86d364f3b44defb5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c37b8472d485e5250c66ebc1eb28956bc0405722b82313d00c2cb32ccb2ca35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c37b8472d485e5250c66ebc1eb28956bc0405722b82313d00c2cb32ccb2ca35e", kill_on_drop: false }`
[INFO] [stdout] c37b8472d485e5250c66ebc1eb28956bc0405722b82313d00c2cb32ccb2ca35e