[INFO] cloning repository https://github.com/luser/stdin-stdout-deadlock-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luser/stdin-stdout-deadlock-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Fstdin-stdout-deadlock-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Fstdin-stdout-deadlock-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b514544dd1ad0ad332ca1f6065ebf80c8d6126ad
[INFO] checking luser/stdin-stdout-deadlock-test against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Fstdin-stdout-deadlock-test" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luser/stdin-stdout-deadlock-test on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luser/stdin-stdout-deadlock-test
[INFO] finished tweaking git repo https://github.com/luser/stdin-stdout-deadlock-test
[INFO] tweaked toml for git repo https://github.com/luser/stdin-stdout-deadlock-test written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/luser/stdin-stdout-deadlock-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b75f495dcb6595a24e54edb77691707366e60d1b3e38af63714177f11769f17d
[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" "b75f495dcb6595a24e54edb77691707366e60d1b3e38af63714177f11769f17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b75f495dcb6595a24e54edb77691707366e60d1b3e38af63714177f11769f17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75f495dcb6595a24e54edb77691707366e60d1b3e38af63714177f11769f17d", kill_on_drop: false }`
[INFO] [stdout] b75f495dcb6595a24e54edb77691707366e60d1b3e38af63714177f11769f17d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 770e3ef1a3d0225642fe1fa3ba4633c5c7cad08834c121202aaa68fd878df8cd
[INFO] running `Command { std: "docker" "start" "-a" "770e3ef1a3d0225642fe1fa3ba4633c5c7cad08834c121202aaa68fd878df8cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]    Compiling escargot v0.2.0
[INFO] [stderr]     Checking predicates-core v0.9.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking predicates-tree v0.9.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling syn v0.14.6
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking predicates v0.9.0
[INFO] [stderr]     Checking serde v1.0.70
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking assert_cmd v0.9.0
[INFO] [stderr]     Checking stdin-stdout-deadlock-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.81s
[INFO] running `Command { std: "docker" "inspect" "770e3ef1a3d0225642fe1fa3ba4633c5c7cad08834c121202aaa68fd878df8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770e3ef1a3d0225642fe1fa3ba4633c5c7cad08834c121202aaa68fd878df8cd", kill_on_drop: false }`
[INFO] [stdout] 770e3ef1a3d0225642fe1fa3ba4633c5c7cad08834c121202aaa68fd878df8cd