[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faef532853b7e969b3848e32baa09297393749d9
[INFO] checking mickjohn/red_or_black against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickjohn%2Fred_or_black" "/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/mickjohn/red_or_black on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/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" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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] 954ded0690869715a1e0e49429eba3329ac8a1a27ae879afae9b74954cd2f51e
[INFO] running `Command { std: "docker" "start" "-a" "954ded0690869715a1e0e49429eba3329ac8a1a27ae879afae9b74954cd2f51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "954ded0690869715a1e0e49429eba3329ac8a1a27ae879afae9b74954cd2f51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954ded0690869715a1e0e49429eba3329ac8a1a27ae879afae9b74954cd2f51e", kill_on_drop: false }`
[INFO] [stdout] 954ded0690869715a1e0e49429eba3329ac8a1a27ae879afae9b74954cd2f51e
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e180d129e42a60d1b0204eef6cf36baf61c4bb2e6abfc0783ae40a97298f7137
[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" "e180d129e42a60d1b0204eef6cf36baf61c4bb2e6abfc0783ae40a97298f7137", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking lazycell v1.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking ws v0.7.8
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]     Checking websocket_red_or_black v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.08s
[INFO] running `Command { std: "docker" "inspect" "e180d129e42a60d1b0204eef6cf36baf61c4bb2e6abfc0783ae40a97298f7137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e180d129e42a60d1b0204eef6cf36baf61c4bb2e6abfc0783ae40a97298f7137", kill_on_drop: false }`
[INFO] [stdout] e180d129e42a60d1b0204eef6cf36baf61c4bb2e6abfc0783ae40a97298f7137