[INFO] updating cached repository arminha/zhongwen-anki
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arminha/zhongwen-anki
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arminha/zhongwen-anki" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/arminha/zhongwen-anki"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/arminha/zhongwen-anki'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arminha/zhongwen-anki" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/arminha/zhongwen-anki"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/arminha/zhongwen-anki'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5b3f6a7c1b1b2fce84e5c03e31a5c3538cdcd41
[INFO] sha for GitHub repo arminha/zhongwen-anki: a5b3f6a7c1b1b2fce84e5c03e31a5c3538cdcd41
[INFO] validating manifest of arminha/zhongwen-anki on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of arminha/zhongwen-anki on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing arminha/zhongwen-anki
[INFO] finished frobbing arminha/zhongwen-anki
[INFO] frobbed toml for arminha/zhongwen-anki written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/arminha/zhongwen-anki/Cargo.toml
[INFO] started frobbing arminha/zhongwen-anki
[INFO] finished frobbing arminha/zhongwen-anki
[INFO] frobbed toml for arminha/zhongwen-anki written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/arminha/zhongwen-anki/Cargo.toml
[INFO] crate arminha/zhongwen-anki already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking arminha/zhongwen-anki against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-4/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/arminha/zhongwen-anki:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] adbbe7b0d22ce67080532e92f55fe6e5e79f4f9bc341e601c0caf0b0ff7600f3
[INFO] running `"docker" "start" "-a" "adbbe7b0d22ce67080532e92f55fe6e5e79f4f9bc341e601c0caf0b0ff7600f3"`
[INFO] [stderr]     Checking memchr v2.1.1
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]     Checking structopt v0.2.13
[INFO] [stderr]     Checking zhongwen-anki v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pinyin.rs:170:17
[INFO] [stderr]     |
[INFO] [stderr] 170 |     'outer: for mut c in chars.iter_mut().rev() {
[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/pinyin.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         for mut c in chars.iter_mut() {
[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/pinyin.rs:170:17
[INFO] [stderr]     |
[INFO] [stderr] 170 |     'outer: for mut c in chars.iter_mut().rev() {
[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/pinyin.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         for mut c in chars.iter_mut() {
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.10s
[INFO] running `"docker" "inspect" "adbbe7b0d22ce67080532e92f55fe6e5e79f4f9bc341e601c0caf0b0ff7600f3"`
[INFO] running `"docker" "rm" "-f" "adbbe7b0d22ce67080532e92f55fe6e5e79f4f9bc341e601c0caf0b0ff7600f3"`
[INFO] [stdout] adbbe7b0d22ce67080532e92f55fe6e5e79f4f9bc341e601c0caf0b0ff7600f3