[INFO] cloning repository https://github.com/ChunMinChang/play-multithread
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChunMinChang/play-multithread" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChunMinChang%2Fplay-multithread", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChunMinChang%2Fplay-multithread'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9b4eae8230126323ef441c799a67584ce6b825c
[INFO] checking ChunMinChang/play-multithread against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChunMinChang%2Fplay-multithread" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChunMinChang/play-multithread on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChunMinChang/play-multithread
[INFO] finished tweaking git repo https://github.com/ChunMinChang/play-multithread
[INFO] tweaked toml for git repo https://github.com/ChunMinChang/play-multithread written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ChunMinChang/play-multithread already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 4b16a6ff9f181634437c97ae0028212aeb339178170303f7c8d58bc6f088970a
[INFO] running `Command { std: "docker" "start" "-a" "4b16a6ff9f181634437c97ae0028212aeb339178170303f7c8d58bc6f088970a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b16a6ff9f181634437c97ae0028212aeb339178170303f7c8d58bc6f088970a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b16a6ff9f181634437c97ae0028212aeb339178170303f7c8d58bc6f088970a", kill_on_drop: false }`
[INFO] [stdout] 4b16a6ff9f181634437c97ae0028212aeb339178170303f7c8d58bc6f088970a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9db0e43c9e663da0ac6e88689b3e64a826b3844143ab5e70bdb0e2db2c4d26b
[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" "c9db0e43c9e663da0ac6e88689b3e64a826b3844143ab5e70bdb0e2db2c4d26b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking play_multithread v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "c9db0e43c9e663da0ac6e88689b3e64a826b3844143ab5e70bdb0e2db2c4d26b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9db0e43c9e663da0ac6e88689b3e64a826b3844143ab5e70bdb0e2db2c4d26b", kill_on_drop: false }`
[INFO] [stdout] c9db0e43c9e663da0ac6e88689b3e64a826b3844143ab5e70bdb0e2db2c4d26b