[INFO] cloning repository https://github.com/mickjohn/red_or_black
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mickjohn/red_or_black" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickjohn%2Fred_or_black", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickjohn%2Fred_or_black'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faef532853b7e969b3848e32baa09297393749d9
[INFO] checking mickjohn/red_or_black against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickjohn%2Fred_or_black" "/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/mickjohn/red_or_black on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mickjohn/red_or_black
[INFO] finished tweaking git repo https://github.com/mickjohn/red_or_black
[INFO] tweaked toml for git repo https://github.com/mickjohn/red_or_black written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mickjohn/red_or_black already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded url v1.7.1
[INFO] [stderr]   Downloaded httparse v1.3.2
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded byteorder v1.2.6
[INFO] [stderr]   Downloaded ryu v0.2.6
[INFO] [stderr]   Downloaded quote v0.6.8
[INFO] [stderr]   Downloaded lazycell v1.1.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.8
[INFO] [stderr]   Downloaded winapi-util v0.1.1
[INFO] [stderr]   Downloaded memchr v2.1.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.7
[INFO] [stderr]   Downloaded log v0.4.5
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded serde v1.0.78
[INFO] [stderr]   Downloaded serde_derive v1.0.78
[INFO] [stderr]   Downloaded serde_json v1.0.27
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] [stderr]   Downloaded mio-extras v2.0.5
[INFO] [stderr]   Downloaded proc-macro2 v0.4.19
[INFO] [stderr]   Downloaded humantime v1.1.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.2
[INFO] [stderr]   Downloaded regex v1.0.5
[INFO] [stderr]   Downloaded syn v0.15.4
[INFO] [stderr]   Downloaded ws v0.7.8
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", 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] 236e916d2ceb4d5d55c385b9a871fbbaaeee80c37a1ae1ad1a9e01234e163cbc
[INFO] running `Command { std: "docker" "start" "-a" "236e916d2ceb4d5d55c385b9a871fbbaaeee80c37a1ae1ad1a9e01234e163cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "236e916d2ceb4d5d55c385b9a871fbbaaeee80c37a1ae1ad1a9e01234e163cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236e916d2ceb4d5d55c385b9a871fbbaaeee80c37a1ae1ad1a9e01234e163cbc", kill_on_drop: false }`
[INFO] [stdout] 236e916d2ceb4d5d55c385b9a871fbbaaeee80c37a1ae1ad1a9e01234e163cbc
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8108d6a8a2d5b655a0645f1cefa0993c3df512a96a8741c4b8d32ca82925293b
[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" "8108d6a8a2d5b655a0645f1cefa0993c3df512a96a8741c4b8d32ca82925293b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]     Checking ws v0.7.8
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]     Checking websocket_red_or_black v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.38s
[INFO] running `Command { std: "docker" "inspect" "8108d6a8a2d5b655a0645f1cefa0993c3df512a96a8741c4b8d32ca82925293b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8108d6a8a2d5b655a0645f1cefa0993c3df512a96a8741c4b8d32ca82925293b", kill_on_drop: false }`
[INFO] [stdout] 8108d6a8a2d5b655a0645f1cefa0993c3df512a96a8741c4b8d32ca82925293b