[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/beta-1.38-1/sources/1.37.0/gh/c-cube/strictly_tally"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/c-cube/strictly_tally'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/c-cube/strictly_tally" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/c-cube/strictly_tally"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c-cube/strictly_tally on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing c-cube/strictly_tally against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 0c3141668764b800895f972929e9132557527bb4fdaa882796af7f4c5ef22aa3
[INFO] running `"docker" "start" "-a" "0c3141668764b800895f972929e9132557527bb4fdaa882796af7f4c5ef22aa3"`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling 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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 9.21s
[INFO] running `"docker" "inspect" "0c3141668764b800895f972929e9132557527bb4fdaa882796af7f4c5ef22aa3"`
[INFO] running `"docker" "rm" "-f" "0c3141668764b800895f972929e9132557527bb4fdaa882796af7f4c5ef22aa3"`
[INFO] [stdout] 0c3141668764b800895f972929e9132557527bb4fdaa882796af7f4c5ef22aa3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 332c4a3fa18efd1d9c21c13f515f8561deef9aa92352388211cdd0b8d5944497
[INFO] running `"docker" "start" "-a" "332c4a3fa18efd1d9c21c13f515f8561deef9aa92352388211cdd0b8d5944497"`
[INFO] [stderr]    Compiling 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 `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 2.89s
[INFO] running `"docker" "inspect" "332c4a3fa18efd1d9c21c13f515f8561deef9aa92352388211cdd0b8d5944497"`
[INFO] running `"docker" "rm" "-f" "332c4a3fa18efd1d9c21c13f515f8561deef9aa92352388211cdd0b8d5944497"`
[INFO] [stdout] 332c4a3fa18efd1d9c21c13f515f8561deef9aa92352388211cdd0b8d5944497
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a9b565885f65e8190e73f34c85a3182b8560e07b426012d44e382e171d1d91bd
[INFO] running `"docker" "start" "-a" "a9b565885f65e8190e73f34c85a3182b8560e07b426012d44e382e171d1d91bd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/strictly_tally-6c93c7adc2139154
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::test_sheet3 ... ok
[INFO] [stdout] test test::test_sheet2 ... ok
[INFO] [stdout] test test::test_sheet1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a9b565885f65e8190e73f34c85a3182b8560e07b426012d44e382e171d1d91bd"`
[INFO] running `"docker" "rm" "-f" "a9b565885f65e8190e73f34c85a3182b8560e07b426012d44e382e171d1d91bd"`
[INFO] [stdout] a9b565885f65e8190e73f34c85a3182b8560e07b426012d44e382e171d1d91bd