Dec 05 01:09:35.271 INFO checking MikkelSchubert/disk_usage against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 01:09:35.271 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 01:09:35.476 INFO [stdout] d4cc34b51992d68f11ae74e328ac95493ac4016a7e777d154e7b1b1377f86c95
Dec 05 01:09:35.478 INFO running `"docker" "start" "-a" "d4cc34b51992d68f11ae74e328ac95493ac4016a7e777d154e7b1b1377f86c95"`
Dec 05 01:09:36.276 INFO [stderr] usermod: no changes
Dec 05 01:09:36.385 INFO [stderr]     Checking nix v0.6.0
Dec 05 01:09:39.286 INFO [stderr]     Checking disk_usage v0.1.0 (/source)
Dec 05 01:09:40.523 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.523 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.523 INFO [stderr]     |
Dec 05 01:09:40.523 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.523 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.523 INFO [stderr]     |             |
Dec 05 01:09:40.523 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.523 INFO [stderr]     |
Dec 05 01:09:40.523 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 01:09:40.523 INFO [stderr] 
Dec 05 01:09:40.523 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.523 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.523 INFO [stderr]     |
Dec 05 01:09:40.523 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.523 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.523 INFO [stderr]     |             |
Dec 05 01:09:40.523 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.523 INFO [stderr] 
Dec 05 01:09:40.567 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.567 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.567 INFO [stderr]     |
Dec 05 01:09:40.567 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.567 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.567 INFO [stderr]     |             |
Dec 05 01:09:40.567 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.567 INFO [stderr]     |
Dec 05 01:09:40.567 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 01:09:40.567 INFO [stderr] 
Dec 05 01:09:40.567 INFO [stderr] warning: variable does not need to be mutable
Dec 05 01:09:40.567 INFO [stderr]    --> src/main.rs:120:13
Dec 05 01:09:40.567 INFO [stderr]     |
Dec 05 01:09:40.567 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Dec 05 01:09:40.567 INFO [stderr]     |             ----^^^^
Dec 05 01:09:40.567 INFO [stderr]     |             |
Dec 05 01:09:40.567 INFO [stderr]     |             help: remove this `mut`
Dec 05 01:09:40.567 INFO [stderr] 
Dec 05 01:09:40.603 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
Dec 05 01:09:40.604 INFO [stderr] su: No module specific data is present
Dec 05 01:09:41.163 INFO running `"docker" "inspect" "d4cc34b51992d68f11ae74e328ac95493ac4016a7e777d154e7b1b1377f86c95"`
Dec 05 01:09:41.263 INFO running `"docker" "rm" "-f" "d4cc34b51992d68f11ae74e328ac95493ac4016a7e777d154e7b1b1377f86c95"`
Dec 05 01:09:41.376 INFO [stdout] d4cc34b51992d68f11ae74e328ac95493ac4016a7e777d154e7b1b1377f86c95