Dec 05 01:09:35.334 INFO checking MikkelSchubert/disk_usage against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 01:09:35.334 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 01:09:35.499 INFO [stdout] 094a43333763a7693e14346f1bf169f3b8e057a13a5b9947d1de54528af9949b
Dec 05 01:09:35.501 INFO running `"docker" "start" "-a" "094a43333763a7693e14346f1bf169f3b8e057a13a5b9947d1de54528af9949b"`
Dec 05 01:09:36.254 INFO [stderr] usermod: no changes
Dec 05 01:09:36.354 INFO [stderr]     Checking nix v0.6.0
Dec 05 01:09:39.011 INFO [stderr]     Checking disk_usage v0.1.0 (/source)
Dec 05 01:09:40.315 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.315 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.315 INFO [stderr]     |
Dec 05 01:09:40.315 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.315 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.315 INFO [stderr]     |             |
Dec 05 01:09:40.315 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.315 INFO [stderr]     |
Dec 05 01:09:40.315 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 01:09:40.315 INFO [stderr] 
Dec 05 01:09:40.315 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.315 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.315 INFO [stderr]     |
Dec 05 01:09:40.315 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.315 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.315 INFO [stderr]     |             |
Dec 05 01:09:40.315 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.315 INFO [stderr] 
Dec 05 01:09:40.403 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.403 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.403 INFO [stderr]     |
Dec 05 01:09:40.403 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.404 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.404 INFO [stderr]     |             |
Dec 05 01:09:40.404 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.404 INFO [stderr]     |
Dec 05 01:09:40.404 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 01:09:40.404 INFO [stderr] 
Dec 05 01:09:40.404 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.404 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.404 INFO [stderr]     |
Dec 05 01:09:40.404 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.404 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.404 INFO [stderr]     |             |
Dec 05 01:09:40.404 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.404 INFO [stderr] 
Dec 05 01:09:40.428 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
Dec 05 01:09:40.436 INFO [stderr] su: No module specific data is present
Dec 05 01:09:40.741 INFO running `"docker" "inspect" "094a43333763a7693e14346f1bf169f3b8e057a13a5b9947d1de54528af9949b"`
Dec 05 01:09:40.836 INFO running `"docker" "rm" "-f" "094a43333763a7693e14346f1bf169f3b8e057a13a5b9947d1de54528af9949b"`
Dec 05 01:09:41.157 INFO [stdout] 094a43333763a7693e14346f1bf169f3b8e057a13a5b9947d1de54528af9949b