[INFO] updating cached repository bluejekyll/triword
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bluejekyll/triword
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bluejekyll/triword" "work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/gh/bluejekyll/triword"`
[INFO] [stderr] Cloning into 'work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/gh/bluejekyll/triword'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bluejekyll/triword" "work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/gh/bluejekyll/triword"`
[INFO] [stderr] Cloning into 'work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/gh/bluejekyll/triword'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 542e956dbf701845da56f86b349bec71416ade78
[INFO] sha for GitHub repo bluejekyll/triword: 542e956dbf701845da56f86b349bec71416ade78
[INFO] validating manifest of bluejekyll/triword on toolchain master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bluejekyll/triword on toolchain try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bluejekyll/triword
[INFO] finished frobbing bluejekyll/triword
[INFO] frobbed toml for bluejekyll/triword written to work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/gh/bluejekyll/triword/Cargo.toml
[INFO] started frobbing bluejekyll/triword
[INFO] finished frobbing bluejekyll/triword
[INFO] frobbed toml for bluejekyll/triword written to work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/gh/bluejekyll/triword/Cargo.toml
[INFO] crate bluejekyll/triword already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bluejekyll/triword against master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf for pr-60444
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60444/worker-3/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/gh/bluejekyll/triword:/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" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ecaa7523ae686592a5d8b274ec5897903c4cf311dee8f99df837a3eb2e7da530
[INFO] running `"docker" "start" "-a" "ecaa7523ae686592a5d8b274ec5897903c4cf311dee8f99df837a3eb2e7da530"`
[INFO] [stderr]     Checking serde v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.39
[INFO] [stderr]     Checking serde_json v1.0.15
[INFO] [stderr]     Checking triword v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:149:14
[INFO] [stderr]     |
[INFO] [stderr] 149 |         for (mut this_slot, that_slot) in self.0.iter_mut().zip(grid_count.0.iter()) {
[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/lib.rs:149:14
[INFO] [stderr]     |
[INFO] [stderr] 149 |         for (mut this_slot, that_slot) in self.0.iter_mut().zip(grid_count.0.iter()) {
[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 23.28s
[INFO] running `"docker" "inspect" "ecaa7523ae686592a5d8b274ec5897903c4cf311dee8f99df837a3eb2e7da530"`
[INFO] running `"docker" "rm" "-f" "ecaa7523ae686592a5d8b274ec5897903c4cf311dee8f99df837a3eb2e7da530"`
[INFO] [stdout] ecaa7523ae686592a5d8b274ec5897903c4cf311dee8f99df837a3eb2e7da530