[INFO] updating cached repository c-cube/strictly_tally
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/c-cube/strictly_tally
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/c-cube/strictly_tally" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-cube/strictly_tally"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-cube/strictly_tally'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/c-cube/strictly_tally" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-cube/strictly_tally"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-cube/strictly_tally'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 355075a84f98b9192d3fcb4916ebfd5751c1c3e7
[INFO] sha for GitHub repo c-cube/strictly_tally: 355075a84f98b9192d3fcb4916ebfd5751c1c3e7
[INFO] validating manifest of c-cube/strictly_tally on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c-cube/strictly_tally on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing c-cube/strictly_tally
[INFO] finished frobbing c-cube/strictly_tally
[INFO] frobbed toml for c-cube/strictly_tally written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-cube/strictly_tally/Cargo.toml
[INFO] started frobbing c-cube/strictly_tally
[INFO] finished frobbing c-cube/strictly_tally
[INFO] frobbed toml for c-cube/strictly_tally written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/c-cube/strictly_tally/Cargo.toml
[INFO] crate c-cube/strictly_tally already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking c-cube/strictly_tally against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/c-cube/strictly_tally:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3b6284bb5334e8b6b980aa7ef3b3e0d741a67a2435a797d4a8c6167d60cdcdd9
[INFO] running `"docker" "start" "-a" "3b6284bb5334e8b6b980aa7ef3b3e0d741a67a2435a797d4a8c6167d60cdcdd9"`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking strictly_tally v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `notes`
[INFO] [stderr]    --> src/main.rs:299:20
[INFO] [stderr]     |
[INFO] [stderr] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stderr]     |                    ^^^^^ help: try ignoring the field: `notes: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `judges`
[INFO] [stderr]    --> src/main.rs:299:27
[INFO] [stderr]     |
[INFO] [stderr] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stderr]     |                           ^^^^^^ help: try ignoring the field: `judges: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `notes`
[INFO] [stderr]    --> src/main.rs:299:20
[INFO] [stderr]     |
[INFO] [stderr] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stderr]     |                    ^^^^^ help: try ignoring the field: `notes: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `judges`
[INFO] [stderr]    --> src/main.rs:299:27
[INFO] [stderr]     |
[INFO] [stderr] 299 |         let Sheet {notes, judges, competitors, ..} = self;
[INFO] [stderr]     |                           ^^^^^^ help: try ignoring the field: `judges: _`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_one`
[INFO] [stderr]   --> src/main.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn as_one(&self) -> Option<&T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `map`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn map<F, U>(&self, mut f: F) -> Cluster<U> where F: FnMut(&T) -> U {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]    --> src/main.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn from_str(s: &str) -> Res<Self> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:361:21
[INFO] [stderr]     |
[INFO] [stderr] 361 |                     write!(out, "{:?}", c);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:361:21
[INFO] [stderr]     |
[INFO] [stderr] 361 |                     write!(out, "{:?}", c);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.83s
[INFO] running `"docker" "inspect" "3b6284bb5334e8b6b980aa7ef3b3e0d741a67a2435a797d4a8c6167d60cdcdd9"`
[INFO] running `"docker" "rm" "-f" "3b6284bb5334e8b6b980aa7ef3b3e0d741a67a2435a797d4a8c6167d60cdcdd9"`
[INFO] [stdout] 3b6284bb5334e8b6b980aa7ef3b3e0d741a67a2435a797d4a8c6167d60cdcdd9