[INFO] updating cached repository jeremybobbin/cut-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeremybobbin/cut-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeremybobbin/cut-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/jeremybobbin/cut-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jeremybobbin/cut-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeremybobbin/cut-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jeremybobbin/cut-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jeremybobbin/cut-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 334973caeb7fb9f881331a50213f8e18a2afac18
[INFO] sha for GitHub repo jeremybobbin/cut-rs: 334973caeb7fb9f881331a50213f8e18a2afac18
[INFO] validating manifest of jeremybobbin/cut-rs 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 jeremybobbin/cut-rs 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 jeremybobbin/cut-rs
[INFO] finished frobbing jeremybobbin/cut-rs
[INFO] frobbed toml for jeremybobbin/cut-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/jeremybobbin/cut-rs/Cargo.toml
[INFO] started frobbing jeremybobbin/cut-rs
[INFO] finished frobbing jeremybobbin/cut-rs
[INFO] frobbed toml for jeremybobbin/cut-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jeremybobbin/cut-rs/Cargo.toml
[INFO] crate jeremybobbin/cut-rs 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 jeremybobbin/cut-rs 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jeremybobbin/cut-rs:/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] 23e72362ff8003bb86f94de9a8dd4b002ec51a6c650cb12ffb1efc7824ef0178
[INFO] running `"docker" "start" "-a" "23e72362ff8003bb86f94de9a8dd4b002ec51a6c650cb12ffb1efc7824ef0178"`
[INFO] [stderr]    Compiling cut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `delim`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let delim = ':';
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_delim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:106:26
[INFO] [stderr]     |
[INFO] [stderr] 106 |             .filter(|(i, f)| columns.contains(i))
[INFO] [stderr]     |                          ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:107:20
[INFO] [stderr]     |
[INFO] [stderr] 107 |             .map(|(i, f)| f.to_string())
[INFO] [stderr]     |                    ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     cut(opts.delim, opts.bounds); 
[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] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     parse_bounds(arg, &mut bounds);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "23e72362ff8003bb86f94de9a8dd4b002ec51a6c650cb12ffb1efc7824ef0178"`
[INFO] running `"docker" "rm" "-f" "23e72362ff8003bb86f94de9a8dd4b002ec51a6c650cb12ffb1efc7824ef0178"`
[INFO] [stdout] 23e72362ff8003bb86f94de9a8dd4b002ec51a6c650cb12ffb1efc7824ef0178
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jeremybobbin/cut-rs:/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] f0070ba2c5401436b8a90d6f30c803062cac6d612769249d850f5aa9577b7e25
[INFO] running `"docker" "start" "-a" "f0070ba2c5401436b8a90d6f30c803062cac6d612769249d850f5aa9577b7e25"`
[INFO] [stderr]    Compiling cut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `delim`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let delim = ':';
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_delim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:106:26
[INFO] [stderr]     |
[INFO] [stderr] 106 |             .filter(|(i, f)| columns.contains(i))
[INFO] [stderr]     |                          ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:107:20
[INFO] [stderr]     |
[INFO] [stderr] 107 |             .map(|(i, f)| f.to_string())
[INFO] [stderr]     |                    ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     cut(opts.delim, opts.bounds); 
[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] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     parse_bounds(arg, &mut bounds);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "f0070ba2c5401436b8a90d6f30c803062cac6d612769249d850f5aa9577b7e25"`
[INFO] running `"docker" "rm" "-f" "f0070ba2c5401436b8a90d6f30c803062cac6d612769249d850f5aa9577b7e25"`
[INFO] [stdout] f0070ba2c5401436b8a90d6f30c803062cac6d612769249d850f5aa9577b7e25
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jeremybobbin/cut-rs:/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] b96992d7604a79d460380e6d2ac36c8aaa094cad498c6b64e8e199b1c3aa582d
[INFO] running `"docker" "start" "-a" "b96992d7604a79d460380e6d2ac36c8aaa094cad498c6b64e8e199b1c3aa582d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cut-481a7635e5bda877
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b96992d7604a79d460380e6d2ac36c8aaa094cad498c6b64e8e199b1c3aa582d"`
[INFO] running `"docker" "rm" "-f" "b96992d7604a79d460380e6d2ac36c8aaa094cad498c6b64e8e199b1c3aa582d"`
[INFO] [stdout] b96992d7604a79d460380e6d2ac36c8aaa094cad498c6b64e8e199b1c3aa582d