[INFO] updating cached repository https://github.com/tomc1998/specs_test
[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] 7c82dd36d319a3f4e0bf57a787663baa067001c5
[INFO] checking tomc1998/specs_test against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomc1998%2Fspecs_test" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomc1998/specs_test on toolchain fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tomc1998/specs_test
[INFO] finished tweaking git repo https://github.com/tomc1998/specs_test
[INFO] tweaked toml for git repo https://github.com/tomc1998/specs_test written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tomc1998/specs_test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/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" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 43d2b3005bb2a1c163e722244fa26e9ccd085e11166ec7c4da43d25f604f7fb7
[INFO] running `"docker" "start" "-a" "43d2b3005bb2a1c163e722244fa26e9ccd085e11166ec7c4da43d25f604f7fb7"`
[INFO] [stderr]     Checking ticketed_lock v0.1.0
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking backtrace-sys v0.1.10
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]     Checking specs v0.8.1
[INFO] [stderr]     Checking glium v0.16.0
[INFO] [stderr]     Checking specs_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, StdRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, StdRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |       ----^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |       ----^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.66s
[INFO] running `"docker" "inspect" "43d2b3005bb2a1c163e722244fa26e9ccd085e11166ec7c4da43d25f604f7fb7"`
[INFO] running `"docker" "rm" "-f" "43d2b3005bb2a1c163e722244fa26e9ccd085e11166ec7c4da43d25f604f7fb7"`
[INFO] [stdout] 43d2b3005bb2a1c163e722244fa26e9ccd085e11166ec7c4da43d25f604f7fb7