[INFO] fetching crate lenient_version 0.4.2...
[INFO] checking lenient_version-0.4.2 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate lenient_version 0.4.2 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate lenient_version 0.4.2 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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 semver v0.10.0
[INFO] [stderr]   Downloaded lenient_semver_parser v0.4.2
[INFO] [stderr]   Downloaded lenient_semver_version_builder v0.4.2
[INFO] [stderr]   Downloaded test-case v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44f45f2b518582b1b06f60cee4885771f3537907a30b46305562684247c335cb
[INFO] running `Command { std: "docker" "start" "-a" "44f45f2b518582b1b06f60cee4885771f3537907a30b46305562684247c335cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44f45f2b518582b1b06f60cee4885771f3537907a30b46305562684247c335cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f45f2b518582b1b06f60cee4885771f3537907a30b46305562684247c335cb", kill_on_drop: false }`
[INFO] [stdout] 44f45f2b518582b1b06f60cee4885771f3537907a30b46305562684247c335cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa1f88ebffa9e2028e887950ed575998e77bc6b2e8de86ec4e1d6942c06a947d
[INFO] running `Command { std: "docker" "start" "-a" "fa1f88ebffa9e2028e887950ed575998e77bc6b2e8de86ec4e1d6942c06a947d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]     Checking lenient_semver_version_builder v0.4.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking lenient_semver_parser v0.4.2
[INFO] [stderr]     Checking lenient_version v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling test-case v1.2.0
[INFO] [stderr]     Checking serde_json v1.0.66
[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` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fa1f88ebffa9e2028e887950ed575998e77bc6b2e8de86ec4e1d6942c06a947d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1f88ebffa9e2028e887950ed575998e77bc6b2e8de86ec4e1d6942c06a947d", kill_on_drop: false }`
[INFO] [stdout] fa1f88ebffa9e2028e887950ed575998e77bc6b2e8de86ec4e1d6942c06a947d