[INFO] fetching crate workctl 0.2.0...
[INFO] testing workctl-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate workctl 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate workctl 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate workctl 0.2.0
[INFO] finished tweaking crates.io crate workctl 0.2.0
[INFO] tweaked toml for crates.io crate workctl 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69334bcc61dc01016f496cbdef1798c3a77c10bfbbb315999cb10b91a862a9ab
[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" "69334bcc61dc01016f496cbdef1798c3a77c10bfbbb315999cb10b91a862a9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69334bcc61dc01016f496cbdef1798c3a77c10bfbbb315999cb10b91a862a9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69334bcc61dc01016f496cbdef1798c3a77c10bfbbb315999cb10b91a862a9ab", kill_on_drop: false }`
[INFO] [stdout] 69334bcc61dc01016f496cbdef1798c3a77c10bfbbb315999cb10b91a862a9ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--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] 8bf606c48738c57ad557d2b953a3c53894dd586f0c1f9f25face9f486f1ec277
[INFO] running `Command { std: "docker" "start" "-a" "8bf606c48738c57ad557d2b953a3c53894dd586f0c1f9f25face9f486f1ec277", kill_on_drop: false }`
[INFO] [stderr]    Compiling workctl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "8bf606c48738c57ad557d2b953a3c53894dd586f0c1f9f25face9f486f1ec277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bf606c48738c57ad557d2b953a3c53894dd586f0c1f9f25face9f486f1ec277", kill_on_drop: false }`
[INFO] [stdout] 8bf606c48738c57ad557d2b953a3c53894dd586f0c1f9f25face9f486f1ec277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba1b6e102dce7bbcc64555170b963a26ee146797562b11d8fd41d98f1b9ac5c0
[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" "ba1b6e102dce7bbcc64555170b963a26ee146797562b11d8fd41d98f1b9ac5c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling workctl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "ba1b6e102dce7bbcc64555170b963a26ee146797562b11d8fd41d98f1b9ac5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba1b6e102dce7bbcc64555170b963a26ee146797562b11d8fd41d98f1b9ac5c0", kill_on_drop: false }`
[INFO] [stdout] ba1b6e102dce7bbcc64555170b963a26ee146797562b11d8fd41d98f1b9ac5c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] 660f8736174189514843d789b00ddc93195d38fc8d3019cbb8a18946879fa2bf
[INFO] running `Command { std: "docker" "start" "-a" "660f8736174189514843d789b00ddc93195d38fc8d3019cbb8a18946879fa2bf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/workctl-dc861ccbfcd4fea1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests workctl
[INFO] [stdout] running 1 test
[INFO] [stdout] test work_queue::tests::add_and_remove ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/sync_flag.rs - sync_flag (line 13) ... ok
[INFO] [stdout] test src/work_queue.rs - work_queue::WorkQueue (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/work_queue.rs - work_queue::WorkQueue<T>::wait (line 105) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "660f8736174189514843d789b00ddc93195d38fc8d3019cbb8a18946879fa2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660f8736174189514843d789b00ddc93195d38fc8d3019cbb8a18946879fa2bf", kill_on_drop: false }`
[INFO] [stdout] 660f8736174189514843d789b00ddc93195d38fc8d3019cbb8a18946879fa2bf