[INFO] fetching crate value-trait 0.2.8...
[INFO] checking value-trait-0.2.8 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate value-trait 0.2.8 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate value-trait 0.2.8 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate value-trait 0.2.8
[INFO] finished tweaking crates.io crate value-trait 0.2.8
[INFO] tweaked toml for crates.io crate value-trait 0.2.8 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `rust-version` is not supported on this version of Cargo and will be ignored
[INFO] [stderr] 
[INFO] [stderr] consider adding `cargo-features = ["rust-version"]` to the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e6e14fc2ae515e767376b454b2255d92c1c5ae54416875d8888a07ac3cbbb57
[INFO] running `Command { std: "docker" "start" "-a" "5e6e14fc2ae515e767376b454b2255d92c1c5ae54416875d8888a07ac3cbbb57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e6e14fc2ae515e767376b454b2255d92c1c5ae54416875d8888a07ac3cbbb57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e6e14fc2ae515e767376b454b2255d92c1c5ae54416875d8888a07ac3cbbb57", kill_on_drop: false }`
[INFO] [stdout] 5e6e14fc2ae515e767376b454b2255d92c1c5ae54416875d8888a07ac3cbbb57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51591fdd21e515a571bc4c5a2d7e81ebc3175c842b5c458a477de1d7e1aee3d6
[INFO] running `Command { std: "docker" "start" "-a" "51591fdd21e515a571bc4c5a2d7e81ebc3175c842b5c458a477de1d7e1aee3d6", kill_on_drop: false }`
[INFO] [stderr] warning: `rust-version` is not supported on this version of Cargo and will be ignored
[INFO] [stderr] 
[INFO] [stderr] consider adding `cargo-features = ["rust-version"]` to the manifest
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking halfbrown v0.1.11
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking value-trait v0.2.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "51591fdd21e515a571bc4c5a2d7e81ebc3175c842b5c458a477de1d7e1aee3d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51591fdd21e515a571bc4c5a2d7e81ebc3175c842b5c458a477de1d7e1aee3d6", kill_on_drop: false }`
[INFO] [stdout] 51591fdd21e515a571bc4c5a2d7e81ebc3175c842b5c458a477de1d7e1aee3d6