[INFO] fetching crate rustc-std-workspace-core 1.0.0...
[INFO] testing rustc-std-workspace-core-1.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rustc-std-workspace-core 1.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rustc-std-workspace-core 1.0.0 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 rustc-std-workspace-core 1.0.0
[INFO] finished tweaking crates.io crate rustc-std-workspace-core 1.0.0
[INFO] tweaked toml for crates.io crate rustc-std-workspace-core 1.0.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 7cc50db0a2ff20b3729345739390217fecf16f04b7ba4ca73601580621a2f4bd
[INFO] running `Command { std: "docker" "start" "-a" "7cc50db0a2ff20b3729345739390217fecf16f04b7ba4ca73601580621a2f4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cc50db0a2ff20b3729345739390217fecf16f04b7ba4ca73601580621a2f4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc50db0a2ff20b3729345739390217fecf16f04b7ba4ca73601580621a2f4bd", kill_on_drop: false }`
[INFO] [stdout] 7cc50db0a2ff20b3729345739390217fecf16f04b7ba4ca73601580621a2f4bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] b17341d5ca7e01a527da451f5d8aa5ff18f3a4fb77a65d0c132dd9b5a04f5f8b
[INFO] running `Command { std: "docker" "start" "-a" "b17341d5ca7e01a527da451f5d8aa5ff18f3a4fb77a65d0c132dd9b5a04f5f8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-std-workspace-core v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "b17341d5ca7e01a527da451f5d8aa5ff18f3a4fb77a65d0c132dd9b5a04f5f8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17341d5ca7e01a527da451f5d8aa5ff18f3a4fb77a65d0c132dd9b5a04f5f8b", kill_on_drop: false }`
[INFO] [stdout] b17341d5ca7e01a527da451f5d8aa5ff18f3a4fb77a65d0c132dd9b5a04f5f8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 82e9a5ed6657fda557031aae1f45b38f929505b8dd8d1fbce12c196c29c021bf
[INFO] running `Command { std: "docker" "start" "-a" "82e9a5ed6657fda557031aae1f45b38f929505b8dd8d1fbce12c196c29c021bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-std-workspace-core v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "82e9a5ed6657fda557031aae1f45b38f929505b8dd8d1fbce12c196c29c021bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e9a5ed6657fda557031aae1f45b38f929505b8dd8d1fbce12c196c29c021bf", kill_on_drop: false }`
[INFO] [stdout] 82e9a5ed6657fda557031aae1f45b38f929505b8dd8d1fbce12c196c29c021bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] a21fd76c84b693a7fa8b6e8b5f41ec3c19e931489fb522f74ec45efd3ab71bbb
[INFO] running `Command { std: "docker" "start" "-a" "a21fd76c84b693a7fa8b6e8b5f41ec3c19e931489fb522f74ec45efd3ab71bbb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustc_std_workspace_core-f9e8a0614fa3b98a)
[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]    Doc-tests rustc-std-workspace-core
[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" "a21fd76c84b693a7fa8b6e8b5f41ec3c19e931489fb522f74ec45efd3ab71bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21fd76c84b693a7fa8b6e8b5f41ec3c19e931489fb522f74ec45efd3ab71bbb", kill_on_drop: false }`
[INFO] [stdout] a21fd76c84b693a7fa8b6e8b5f41ec3c19e931489fb522f74ec45efd3ab71bbb