[INFO] updating cached repository asmoaesl/ox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asmoaesl/ox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asmoaesl/ox" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/asmoaesl/ox"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/asmoaesl/ox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asmoaesl/ox" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/asmoaesl/ox"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/asmoaesl/ox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 622b85ccdc884a354d27a430f4c496c4702e1824
[INFO] sha for GitHub repo asmoaesl/ox: 622b85ccdc884a354d27a430f4c496c4702e1824
[INFO] validating manifest of asmoaesl/ox on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of asmoaesl/ox on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing asmoaesl/ox
[INFO] finished frobbing asmoaesl/ox
[INFO] frobbed toml for asmoaesl/ox written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/asmoaesl/ox/Cargo.toml
[INFO] started frobbing asmoaesl/ox
[INFO] finished frobbing asmoaesl/ox
[INFO] frobbed toml for asmoaesl/ox written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/asmoaesl/ox/Cargo.toml
[INFO] crate asmoaesl/ox already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking asmoaesl/ox against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-0/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/asmoaesl/ox:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6cb0f5af7859f212ca563a8d6a2fbff588aa787f7057df49d35c8a1cba9c66b4
[INFO] running `"docker" "start" "-a" "6cb0f5af7859f212ca563a8d6a2fbff588aa787f7057df49d35c8a1cba9c66b4"`
[INFO] [stderr]     Checking peek-nth v0.2.0
[INFO] [stderr]     Checking oxc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:371:25
[INFO] [stderr]     |
[INFO] [stderr] 371 |                     let mut op = match tokens.next().unwrap().token {
[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/ast.rs:393:25
[INFO] [stderr]     |
[INFO] [stderr] 393 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:415:25
[INFO] [stderr]     |
[INFO] [stderr] 415 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:439:25
[INFO] [stderr]     |
[INFO] [stderr] 439 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:462:25
[INFO] [stderr]     |
[INFO] [stderr] 462 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:485:25
[INFO] [stderr]     |
[INFO] [stderr] 485 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:508:25
[INFO] [stderr]     |
[INFO] [stderr] 508 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:371:25
[INFO] [stderr]     |
[INFO] [stderr] 371 |                     let mut op = match tokens.next().unwrap().token {
[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/ast.rs:393:25
[INFO] [stderr]     |
[INFO] [stderr] 393 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:415:25
[INFO] [stderr]     |
[INFO] [stderr] 415 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:439:25
[INFO] [stderr]     |
[INFO] [stderr] 439 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:462:25
[INFO] [stderr]     |
[INFO] [stderr] 462 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:485:25
[INFO] [stderr]     |
[INFO] [stderr] 485 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ast.rs:508:25
[INFO] [stderr]     |
[INFO] [stderr] 508 |                     let mut op = match tokens.next().unwrap().token {
[INFO] [stderr]     |                         ----^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "6cb0f5af7859f212ca563a8d6a2fbff588aa787f7057df49d35c8a1cba9c66b4"`
[INFO] running `"docker" "rm" "-f" "6cb0f5af7859f212ca563a8d6a2fbff588aa787f7057df49d35c8a1cba9c66b4"`
[INFO] [stdout] 6cb0f5af7859f212ca563a8d6a2fbff588aa787f7057df49d35c8a1cba9c66b4