[INFO] updating cached repository bjorn3/serviceworkify
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bjorn3/serviceworkify
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bjorn3/serviceworkify" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/bjorn3/serviceworkify"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/bjorn3/serviceworkify'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bjorn3/serviceworkify" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/bjorn3/serviceworkify"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/bjorn3/serviceworkify'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d97a09a5f73d2e4561d959fd6cfe8d6b9f749928
[INFO] sha for GitHub repo bjorn3/serviceworkify: d97a09a5f73d2e4561d959fd6cfe8d6b9f749928
[INFO] validating manifest of bjorn3/serviceworkify on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bjorn3/serviceworkify on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bjorn3/serviceworkify
[INFO] finished frobbing bjorn3/serviceworkify
[INFO] frobbed toml for bjorn3/serviceworkify written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/bjorn3/serviceworkify/Cargo.toml
[INFO] started frobbing bjorn3/serviceworkify
[INFO] finished frobbing bjorn3/serviceworkify
[INFO] frobbed toml for bjorn3/serviceworkify written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/bjorn3/serviceworkify/Cargo.toml
[INFO] crate bjorn3/serviceworkify has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bjorn3/serviceworkify against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-7/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/bjorn3/serviceworkify:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b0e7683ef29168bfdc3e771cd1d8ca8bc64585353567fbf975a1a7f13a6d3836
[INFO] running `"docker" "start" "-a" "b0e7683ef29168bfdc3e771cd1d8ca8bc64585353567fbf975a1a7f13a6d3836"`
[INFO] [stderr]     Checking convenience v0.1.0
[INFO] [stderr]     Checking serviceworkify v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn handler(mut s_req: Request, mut s_res: Response) {
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn handler(mut s_req: Request, mut s_res: Response) {
[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 1.36s
[INFO] running `"docker" "inspect" "b0e7683ef29168bfdc3e771cd1d8ca8bc64585353567fbf975a1a7f13a6d3836"`
[INFO] running `"docker" "rm" "-f" "b0e7683ef29168bfdc3e771cd1d8ca8bc64585353567fbf975a1a7f13a6d3836"`
[INFO] [stdout] b0e7683ef29168bfdc3e771cd1d8ca8bc64585353567fbf975a1a7f13a6d3836