Nov 30 09:41:21.932 INFO checking MikkelSchubert/disk_usage against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 09:41:21.932 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 30 09:41:22.081 INFO [stdout] f9692cd1d3ca53c65aca2329703e5fe7df9c3727dbd6be76ca1b033d73859bd6
Nov 30 09:41:22.083 INFO running `"docker" "start" "-a" "f9692cd1d3ca53c65aca2329703e5fe7df9c3727dbd6be76ca1b033d73859bd6"`
Nov 30 09:41:22.411 INFO [stderr] usermod: no changes
Nov 30 09:41:22.469 INFO [stderr]     Checking clap v2.21.1
Nov 30 09:41:22.470 INFO [stderr]     Checking nix v0.6.0
Nov 30 09:41:28.436 INFO [stderr]     Checking disk_usage v0.1.0 (/source)
Nov 30 09:41:30.264 INFO [stderr] warning: variable does not need to be mutable
Nov 30 09:41:30.264 INFO [stderr]    --> src/main.rs:120:13
Nov 30 09:41:30.264 INFO [stderr]     |
Nov 30 09:41:30.264 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Nov 30 09:41:30.264 INFO [stderr]     |             ----^^^^
Nov 30 09:41:30.264 INFO [stderr]     |             |
Nov 30 09:41:30.264 INFO [stderr]     |             help: remove this `mut`
Nov 30 09:41:30.265 INFO [stderr]     |
Nov 30 09:41:30.265 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 09:41:30.265 INFO [stderr] 
Nov 30 09:41:30.265 INFO [stderr] warning: variable does not need to be mutable
Nov 30 09:41:30.265 INFO [stderr]    --> src/main.rs:120:13
Nov 30 09:41:30.265 INFO [stderr]     |
Nov 30 09:41:30.265 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Nov 30 09:41:30.265 INFO [stderr]     |             ----^^^^
Nov 30 09:41:30.265 INFO [stderr]     |             |
Nov 30 09:41:30.265 INFO [stderr]     |             help: remove this `mut`
Nov 30 09:41:30.265 INFO [stderr] 
Nov 30 09:41:30.664 INFO [stderr] warning: variable does not need to be mutable
Nov 30 09:41:30.664 INFO [stderr]    --> src/main.rs:120:13
Nov 30 09:41:30.664 INFO [stderr]     |
Nov 30 09:41:30.664 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Nov 30 09:41:30.664 INFO [stderr]     |             ----^^^^
Nov 30 09:41:30.664 INFO [stderr]     |             |
Nov 30 09:41:30.664 INFO [stderr]     |             help: remove this `mut`
Nov 30 09:41:30.664 INFO [stderr]     |
Nov 30 09:41:30.664 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 09:41:30.664 INFO [stderr] 
Nov 30 09:41:30.664 INFO [stderr] warning: variable does not need to be mutable
Nov 30 09:41:30.664 INFO [stderr]    --> src/main.rs:120:13
Nov 30 09:41:30.664 INFO [stderr]     |
Nov 30 09:41:30.664 INFO [stderr] 120 |         let mut user = users.entry(metadata.uid()).or_insert_with(|| {
Nov 30 09:41:30.664 INFO [stderr]     |             ----^^^^
Nov 30 09:41:30.664 INFO [stderr]     |             |
Nov 30 09:41:30.664 INFO [stderr]     |             help: remove this `mut`
Nov 30 09:41:30.664 INFO [stderr] 
Nov 30 09:41:30.701 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
Nov 30 09:41:30.705 INFO [stderr] su: No module specific data is present
Nov 30 09:41:31.829 INFO running `"docker" "inspect" "f9692cd1d3ca53c65aca2329703e5fe7df9c3727dbd6be76ca1b033d73859bd6"`
Nov 30 09:41:32.138 INFO running `"docker" "rm" "-f" "f9692cd1d3ca53c65aca2329703e5fe7df9c3727dbd6be76ca1b033d73859bd6"`
Nov 30 09:41:32.440 INFO [stdout] f9692cd1d3ca53c65aca2329703e5fe7df9c3727dbd6be76ca1b033d73859bd6