[INFO] fetching crate messagebus 0.9.9...
[INFO] checking messagebus-0.9.9 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate messagebus 0.9.9 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate messagebus 0.9.9 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate messagebus 0.9.9
[INFO] finished tweaking crates.io crate messagebus 0.9.9
[INFO] tweaked toml for crates.io crate messagebus 0.9.9 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate crates.io crate messagebus 0.9.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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 messagebus_derive v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cbe386ee363cd82d6861c4da55952d7e0107aef65ac5d882caa1f0d7cc11673
[INFO] running `Command { std: "docker" "start" "-a" "7cbe386ee363cd82d6861c4da55952d7e0107aef65ac5d882caa1f0d7cc11673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cbe386ee363cd82d6861c4da55952d7e0107aef65ac5d882caa1f0d7cc11673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbe386ee363cd82d6861c4da55952d7e0107aef65ac5d882caa1f0d7cc11673", kill_on_drop: false }`
[INFO] [stdout] 7cbe386ee363cd82d6861c4da55952d7e0107aef65ac5d882caa1f0d7cc11673
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52610dd79c2571bd8701b6a2a30cc6285302c9ceeee29cf23cae2b61ae97f8af
[INFO] running `Command { std: "docker" "start" "-a" "52610dd79c2571bd8701b6a2a30cc6285302c9ceeee29cf23cae2b61ae97f8af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]     Checking sharded-slab v0.1.3
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling messagebus_derive v0.2.4
[INFO] [stderr]     Checking futures-util v0.3.17
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking messagebus v0.9.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.40s
[INFO] running `Command { std: "docker" "inspect" "52610dd79c2571bd8701b6a2a30cc6285302c9ceeee29cf23cae2b61ae97f8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52610dd79c2571bd8701b6a2a30cc6285302c9ceeee29cf23cae2b61ae97f8af", kill_on_drop: false }`
[INFO] [stdout] 52610dd79c2571bd8701b6a2a30cc6285302c9ceeee29cf23cae2b61ae97f8af
