[INFO] cloning repository https://github.com/DeltaManiac/mandlebrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeltaManiac/mandlebrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeltaManiac%2Fmandlebrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeltaManiac%2Fmandlebrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8afbf338461a3f6db8b8c6cd91cbb2087e67026e
[INFO] testing DeltaManiac/mandlebrot against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeltaManiac%2Fmandlebrot" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DeltaManiac/mandlebrot on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DeltaManiac/mandlebrot
[INFO] finished tweaking git repo https://github.com/DeltaManiac/mandlebrot
[INFO] tweaked toml for git repo https://github.com/DeltaManiac/mandlebrot written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/DeltaManiac/mandlebrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c0904f337d056cc9a27e1fc6f5991f132078d0c249c5b01f84fcba823ee3dab
[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" "2c0904f337d056cc9a27e1fc6f5991f132078d0c249c5b01f84fcba823ee3dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0904f337d056cc9a27e1fc6f5991f132078d0c249c5b01f84fcba823ee3dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0904f337d056cc9a27e1fc6f5991f132078d0c249c5b01f84fcba823ee3dab", kill_on_drop: false }`
[INFO] [stdout] 2c0904f337d056cc9a27e1fc6f5991f132078d0c249c5b01f84fcba823ee3dab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ec3ca0f1bc8c12fe837ccfcd330b2cf55f8592fa412d8be1dd4a5e317dc92af
[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" "7ec3ca0f1bc8c12fe837ccfcd330b2cf55f8592fa412d8be1dd4a5e317dc92af", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling inflate v0.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.0
[INFO] [stderr]    Compiling txt_adv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[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 [unoptimized + debuginfo] target(s) in 21.65s
[INFO] running `Command { std: "docker" "inspect" "7ec3ca0f1bc8c12fe837ccfcd330b2cf55f8592fa412d8be1dd4a5e317dc92af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec3ca0f1bc8c12fe837ccfcd330b2cf55f8592fa412d8be1dd4a5e317dc92af", kill_on_drop: false }`
[INFO] [stdout] 7ec3ca0f1bc8c12fe837ccfcd330b2cf55f8592fa412d8be1dd4a5e317dc92af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f86af868a0194c549390a3ed73216653600064fa1edacde8dd6f638a318b682
[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" "3f86af868a0194c549390a3ed73216653600064fa1edacde8dd6f638a318b682", kill_on_drop: false }`
[INFO] [stderr]    Compiling txt_adv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[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 test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "3f86af868a0194c549390a3ed73216653600064fa1edacde8dd6f638a318b682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f86af868a0194c549390a3ed73216653600064fa1edacde8dd6f638a318b682", kill_on_drop: false }`
[INFO] [stdout] 3f86af868a0194c549390a3ed73216653600064fa1edacde8dd6f638a318b682
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 99b949ef8352413d4877311ba00dd4015aec208ba2ece76f6e30665418c79caf
[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" "99b949ef8352413d4877311ba00dd4015aec208ba2ece76f6e30665418c79caf", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::Write;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/txt_adv-db25f823bca42359)
[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" "99b949ef8352413d4877311ba00dd4015aec208ba2ece76f6e30665418c79caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b949ef8352413d4877311ba00dd4015aec208ba2ece76f6e30665418c79caf", kill_on_drop: false }`
[INFO] [stdout] 99b949ef8352413d4877311ba00dd4015aec208ba2ece76f6e30665418c79caf