[INFO] updating cached repository https://github.com/havardh/tracer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a8adbc9889f2f1562b2e9e43639c17ff8838abd
[INFO] checking havardh/tracer against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhavardh%2Ftracer" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/havardh/tracer on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/havardh/tracer
[INFO] finished tweaking git repo https://github.com/havardh/tracer
[INFO] tweaked toml for git repo https://github.com/havardh/tracer written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/havardh/tracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3a7fea11fbe474f8e70831bfb8724c393fc56ad4b4786f10705583626529a461
[INFO] running `"docker" "start" "-a" "3a7fea11fbe474f8e70831bfb8724c393fc56ad4b4786f10705583626529a461"`
[INFO] [stderr]     Checking bmp v0.5.0
[INFO] [stderr]     Checking tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Rng`, `self`
[INFO] [stderr]  --> src/sphere.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{ self, Rng };
[INFO] [stderr]   |             ^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `self`
[INFO] [stderr]  --> src/sphere.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{ self, Rng };
[INFO] [stderr]   |             ^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `"docker" "inspect" "3a7fea11fbe474f8e70831bfb8724c393fc56ad4b4786f10705583626529a461"`
[INFO] running `"docker" "rm" "-f" "3a7fea11fbe474f8e70831bfb8724c393fc56ad4b4786f10705583626529a461"`
[INFO] [stdout] 3a7fea11fbe474f8e70831bfb8724c393fc56ad4b4786f10705583626529a461