Dec 12 02:12:17.295 INFO checking Jellonator/Emailang against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 02:12:17.295 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 12 02:12:17.886 INFO [stdout] 52778edc039aa18e0be2c0ca9b13ac7a8d85061af40b42a96d7a20fe0a3d0d93
Dec 12 02:12:17.896 INFO running `"docker" "start" "-a" "52778edc039aa18e0be2c0ca9b13ac7a8d85061af40b42a96d7a20fe0a3d0d93"`
Dec 12 02:12:19.844 INFO [stderr] usermod: no changes
Dec 12 02:12:19.968 INFO [stderr]     Checking emailang v1.0.0 (/source)
Dec 12 02:12:21.952 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:12:21.952 INFO [stderr]   --> src/interpreter/mod.rs:58:7
Dec 12 02:12:21.952 INFO [stderr]    |
Dec 12 02:12:21.952 INFO [stderr] 58 |         let mut serv = match self.get_server(&tserver) {
Dec 12 02:12:21.952 INFO [stderr]    |             ----^^^^
Dec 12 02:12:21.952 INFO [stderr]    |             |
Dec 12 02:12:21.952 INFO [stderr]    |             help: remove this `mut`
Dec 12 02:12:21.952 INFO [stderr]    |
Dec 12 02:12:21.952 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 02:12:21.952 INFO [stderr] 
Dec 12 02:12:21.952 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:12:21.952 INFO [stderr]   --> src/interpreter/mod.rs:63:7
Dec 12 02:12:21.952 INFO [stderr]    |
Dec 12 02:12:21.952 INFO [stderr] 63 |         let mut user = match serv.get_user_mut(&tuser) {
Dec 12 02:12:21.952 INFO [stderr]    |             ----^^^^
Dec 12 02:12:21.952 INFO [stderr]    |             |
Dec 12 02:12:21.952 INFO [stderr]    |             help: remove this `mut`
Dec 12 02:12:21.952 INFO [stderr] 
Dec 12 02:12:22.337 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:12:22.338 INFO [stderr]   --> src/interpreter/mod.rs:58:7
Dec 12 02:12:22.338 INFO [stderr]    |
Dec 12 02:12:22.338 INFO [stderr] 58 |         let mut serv = match self.get_server(&tserver) {
Dec 12 02:12:22.338 INFO [stderr]    |             ----^^^^
Dec 12 02:12:22.338 INFO [stderr]    |             |
Dec 12 02:12:22.338 INFO [stderr]    |             help: remove this `mut`
Dec 12 02:12:22.338 INFO [stderr]    |
Dec 12 02:12:22.338 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 02:12:22.338 INFO [stderr] 
Dec 12 02:12:22.338 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:12:22.338 INFO [stderr]   --> src/interpreter/mod.rs:63:7
Dec 12 02:12:22.338 INFO [stderr]    |
Dec 12 02:12:22.338 INFO [stderr] 63 |         let mut user = match serv.get_user_mut(&tuser) {
Dec 12 02:12:22.338 INFO [stderr]    |             ----^^^^
Dec 12 02:12:22.338 INFO [stderr]    |             |
Dec 12 02:12:22.338 INFO [stderr]    |             help: remove this `mut`
Dec 12 02:12:22.338 INFO [stderr] 
Dec 12 02:12:22.553 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.66s
Dec 12 02:12:22.557 INFO [stderr] su: No module specific data is present
Dec 12 02:12:23.644 INFO running `"docker" "inspect" "52778edc039aa18e0be2c0ca9b13ac7a8d85061af40b42a96d7a20fe0a3d0d93"`
Dec 12 02:12:23.970 INFO running `"docker" "rm" "-f" "52778edc039aa18e0be2c0ca9b13ac7a8d85061af40b42a96d7a20fe0a3d0d93"`
Dec 12 02:12:24.304 INFO [stdout] 52778edc039aa18e0be2c0ca9b13ac7a8d85061af40b42a96d7a20fe0a3d0d93