[INFO] updating cached repository rfaulhaber/kolakoski-counter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rfaulhaber/kolakoski-counter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rfaulhaber/kolakoski-counter" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/rfaulhaber/kolakoski-counter"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/rfaulhaber/kolakoski-counter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rfaulhaber/kolakoski-counter" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/rfaulhaber/kolakoski-counter"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/rfaulhaber/kolakoski-counter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ff0ae4792a2a31bdf4be02e596c5bcd4f28e917c
[INFO] sha for GitHub repo rfaulhaber/kolakoski-counter: ff0ae4792a2a31bdf4be02e596c5bcd4f28e917c
[INFO] validating manifest of rfaulhaber/kolakoski-counter on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rfaulhaber/kolakoski-counter on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rfaulhaber/kolakoski-counter
[INFO] finished frobbing rfaulhaber/kolakoski-counter
[INFO] frobbed toml for rfaulhaber/kolakoski-counter written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/rfaulhaber/kolakoski-counter/Cargo.toml
[INFO] started frobbing rfaulhaber/kolakoski-counter
[INFO] finished frobbing rfaulhaber/kolakoski-counter
[INFO] frobbed toml for rfaulhaber/kolakoski-counter written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/rfaulhaber/kolakoski-counter/Cargo.toml
[INFO] crate rfaulhaber/kolakoski-counter already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rfaulhaber/kolakoski-counter against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-7/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/rfaulhaber/kolakoski-counter:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 207d8356b1c65fd7f79e9682e1a7342e6a4e0faf95093a9031eaee2fce64c9dd
[INFO] running `"docker" "start" "-a" "207d8356b1c65fd7f79e9682e1a7342e6a4e0faf95093a9031eaee2fce64c9dd"`
[INFO] [stderr]     Checking kol-counter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `prev_run`
[INFO] [stderr]  --> src/seq.rs:2:2
[INFO] [stderr]   |
[INFO] [stderr] 2 |     prev_run: Run,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/seq.rs:8:2
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> KolSeq {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `first`
[INFO] [stderr]   --> src/seq.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn first(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `prev_run`
[INFO] [stderr]  --> src/seq.rs:2:2
[INFO] [stderr]   |
[INFO] [stderr] 2 |     prev_run: Run,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `first`
[INFO] [stderr]   --> src/seq.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn first(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "207d8356b1c65fd7f79e9682e1a7342e6a4e0faf95093a9031eaee2fce64c9dd"`
[INFO] running `"docker" "rm" "-f" "207d8356b1c65fd7f79e9682e1a7342e6a4e0faf95093a9031eaee2fce64c9dd"`
[INFO] [stdout] 207d8356b1c65fd7f79e9682e1a7342e6a4e0faf95093a9031eaee2fce64c9dd