[INFO] cloning repository https://github.com/pbchekin/mutable-threads
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pbchekin/mutable-threads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpbchekin%2Fmutable-threads", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpbchekin%2Fmutable-threads'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2a00d2b133bf00276fb34b55df64f8e9c5d6b63
[INFO] testing pbchekin/mutable-threads against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpbchekin%2Fmutable-threads" "/workspace/builds/worker-85/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-85/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pbchekin/mutable-threads on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pbchekin/mutable-threads
[INFO] finished tweaking git repo https://github.com/pbchekin/mutable-threads
[INFO] tweaked toml for git repo https://github.com/pbchekin/mutable-threads written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] crate git repo https://github.com/pbchekin/mutable-threads already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded slab v0.1.3
[INFO] [stderr]   Downloaded mio v0.5.1
[INFO] [stderr]   Downloaded cfg-if v0.1.4
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded miow v0.1.5
[INFO] [stderr]   Downloaded aho-corasick v0.6.6
[INFO] [stderr]   Downloaded regex v1.0.2
[INFO] [stderr]   Downloaded bytes v0.3.0
[INFO] [stderr]   Downloaded linebased v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 947f6a3b1eaacc4fa4e488c4131aee851f7bf7721349a9cdc539b78581f466dd
[INFO] running `Command { std: "docker" "start" "-a" "947f6a3b1eaacc4fa4e488c4131aee851f7bf7721349a9cdc539b78581f466dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "947f6a3b1eaacc4fa4e488c4131aee851f7bf7721349a9cdc539b78581f466dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947f6a3b1eaacc4fa4e488c4131aee851f7bf7721349a9cdc539b78581f466dd", kill_on_drop: false }`
[INFO] [stdout] 947f6a3b1eaacc4fa4e488c4131aee851f7bf7721349a9cdc539b78581f466dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f34192e47afb4619a53d80ec88bcd7dcd45214341702dcd4ab475f7bc5adf4
[INFO] running `Command { std: "docker" "start" "-a" "68f34192e47afb4619a53d80ec88bcd7dcd45214341702dcd4ab475f7bc5adf4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling linebased v0.3.1
[INFO] [stderr]    Compiling mute-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.85s
[INFO] running `Command { std: "docker" "inspect" "68f34192e47afb4619a53d80ec88bcd7dcd45214341702dcd4ab475f7bc5adf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f34192e47afb4619a53d80ec88bcd7dcd45214341702dcd4ab475f7bc5adf4", kill_on_drop: false }`
[INFO] [stdout] 68f34192e47afb4619a53d80ec88bcd7dcd45214341702dcd4ab475f7bc5adf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3658499870c82ed6b04ad2bc137130cda1a625ee121d3e0736033e0644f88d7
[INFO] running `Command { std: "docker" "start" "-a" "a3658499870c82ed6b04ad2bc137130cda1a625ee121d3e0736033e0644f88d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mute-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.21s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/mute_test-0e01f35f935cb341)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "a3658499870c82ed6b04ad2bc137130cda1a625ee121d3e0736033e0644f88d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3658499870c82ed6b04ad2bc137130cda1a625ee121d3e0736033e0644f88d7", kill_on_drop: false }`
[INFO] [stdout] a3658499870c82ed6b04ad2bc137130cda1a625ee121d3e0736033e0644f88d7