[INFO] fetching crate semka 2.0.6...
[INFO] testing semka-2.0.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate semka 2.0.6 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate semka 2.0.6 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semka 2.0.6
[INFO] finished tweaking crates.io crate semka 2.0.6
[INFO] tweaked toml for crates.io crate semka 2.0.6 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-code v2.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b37cb7120c4413b5da2b063bbeb5071c642f526ff96cbe5b1135abeeb4e49688
[INFO] running `Command { std: "docker" "start" "-a" "b37cb7120c4413b5da2b063bbeb5071c642f526ff96cbe5b1135abeeb4e49688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b37cb7120c4413b5da2b063bbeb5071c642f526ff96cbe5b1135abeeb4e49688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37cb7120c4413b5da2b063bbeb5071c642f526ff96cbe5b1135abeeb4e49688", kill_on_drop: false }`
[INFO] [stdout] b37cb7120c4413b5da2b063bbeb5071c642f526ff96cbe5b1135abeeb4e49688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c24eea5fac6ac7cf1f08186c40cc4483c7b1146f313a597aa1f9bf3f89825ef
[INFO] running `Command { std: "docker" "start" "-a" "9c24eea5fac6ac7cf1f08186c40cc4483c7b1146f313a597aa1f9bf3f89825ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling str-buf v1.0.5
[INFO] [stderr]    Compiling error-code v2.3.1
[INFO] [stderr]    Compiling semka v2.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "9c24eea5fac6ac7cf1f08186c40cc4483c7b1146f313a597aa1f9bf3f89825ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c24eea5fac6ac7cf1f08186c40cc4483c7b1146f313a597aa1f9bf3f89825ef", kill_on_drop: false }`
[INFO] [stdout] 9c24eea5fac6ac7cf1f08186c40cc4483c7b1146f313a597aa1f9bf3f89825ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d1297fdb98e49a7fd0bc22cf0e805e78cef2e2cdf45d1628d3e1554698417c8
[INFO] running `Command { std: "docker" "start" "-a" "3d1297fdb98e49a7fd0bc22cf0e805e78cef2e2cdf45d1628d3e1554698417c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling semka v2.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.20s
[INFO] running `Command { std: "docker" "inspect" "3d1297fdb98e49a7fd0bc22cf0e805e78cef2e2cdf45d1628d3e1554698417c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d1297fdb98e49a7fd0bc22cf0e805e78cef2e2cdf45d1628d3e1554698417c8", kill_on_drop: false }`
[INFO] [stdout] 3d1297fdb98e49a7fd0bc22cf0e805e78cef2e2cdf45d1628d3e1554698417c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 621c079b6f4fce57f67cfe6b18fbaca0f5b67dc38747996aa82f459c635ce35a
[INFO] running `Command { std: "docker" "start" "-a" "621c079b6f4fce57f67cfe6b18fbaca0f5b67dc38747996aa82f459c635ce35a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/semka-d623ecbaee9a6266)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sem.rs (/opt/rustwide/target/debug/deps/sem-b13fd2202db5d469)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test should_init_after_close ... ok
[INFO] [stdout] test should_fail_init_twice ... ok
[INFO] [stdout] test should_return_when_signaled_counting ... ok
[INFO] [stderr]    Doc-tests semka
[INFO] [stdout] test should_timeout_on_wait ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.25s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "621c079b6f4fce57f67cfe6b18fbaca0f5b67dc38747996aa82f459c635ce35a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "621c079b6f4fce57f67cfe6b18fbaca0f5b67dc38747996aa82f459c635ce35a", kill_on_drop: false }`
[INFO] [stdout] 621c079b6f4fce57f67cfe6b18fbaca0f5b67dc38747996aa82f459c635ce35a