[INFO] fetching crate lenient_version 0.4.2...
[INFO] checking lenient_version-0.4.2 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate lenient_version 0.4.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate lenient_version 0.4.2 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lenient_version 0.4.2
[INFO] finished tweaking crates.io crate lenient_version 0.4.2
[INFO] tweaked toml for crates.io crate lenient_version 0.4.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver v0.10.0
[INFO] [stderr]   Downloaded lenient_semver_version_builder v0.4.2
[INFO] [stderr]   Downloaded lenient_semver_parser v0.4.2
[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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 499c6de1474b0f15850a2d9875d2a65be1101b663d6c961418b252ea3e9cd7c3
[INFO] running `Command { std: "docker" "start" "-a" "499c6de1474b0f15850a2d9875d2a65be1101b663d6c961418b252ea3e9cd7c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "499c6de1474b0f15850a2d9875d2a65be1101b663d6c961418b252ea3e9cd7c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499c6de1474b0f15850a2d9875d2a65be1101b663d6c961418b252ea3e9cd7c3", kill_on_drop: false }`
[INFO] [stdout] 499c6de1474b0f15850a2d9875d2a65be1101b663d6c961418b252ea3e9cd7c3
[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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0b2ad2535ee3e65c4c8a839a1cec73e694366d4b2e72395fda1e0e6a63056a
[INFO] running `Command { std: "docker" "start" "-a" "bc0b2ad2535ee3e65c4c8a839a1cec73e694366d4b2e72395fda1e0e6a63056a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking lenient_semver_version_builder v0.4.2
[INFO] [stderr]    Compiling test-case v1.2.0
[INFO] [stderr]     Checking lenient_semver_parser v0.4.2
[INFO] [stderr]     Checking lenient_version v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stdout] error: unused import: `Build`
[INFO] [stdout]    --> src/metadata.rs:473:29
[INFO] [stdout]     |
[INFO] [stdout] 473 |     use super::{Additional, Build, PreRelease};
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:35:5
[INFO] [stdout]     |
[INFO] [stdout] 35  |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_imports)]` implied by `#[deny(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `convert::TryInto`
[INFO] [stdout]    --> src/metadata.rs:474:30
[INFO] [stdout]     |
[INFO] [stdout] 474 |     use std::{cmp::Ordering, convert::TryInto};
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lenient_version`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "bc0b2ad2535ee3e65c4c8a839a1cec73e694366d4b2e72395fda1e0e6a63056a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0b2ad2535ee3e65c4c8a839a1cec73e694366d4b2e72395fda1e0e6a63056a", kill_on_drop: false }`
[INFO] [stdout] bc0b2ad2535ee3e65c4c8a839a1cec73e694366d4b2e72395fda1e0e6a63056a