[INFO] updating cached repository KeenS/pattern-match-compile
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KeenS/pattern-match-compile
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KeenS/pattern-match-compile" "work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/pattern-match-compile"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/pattern-match-compile'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KeenS/pattern-match-compile" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KeenS/pattern-match-compile"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KeenS/pattern-match-compile'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 815654fcad33e36f4f5e7fa5cbfb3518015074df
[INFO] sha for GitHub repo KeenS/pattern-match-compile: 815654fcad33e36f4f5e7fa5cbfb3518015074df
[INFO] validating manifest of KeenS/pattern-match-compile 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 KeenS/pattern-match-compile 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 KeenS/pattern-match-compile
[INFO] finished frobbing KeenS/pattern-match-compile
[INFO] frobbed toml for KeenS/pattern-match-compile written to work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/pattern-match-compile/Cargo.toml
[INFO] started frobbing KeenS/pattern-match-compile
[INFO] finished frobbing KeenS/pattern-match-compile
[INFO] frobbed toml for KeenS/pattern-match-compile written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KeenS/pattern-match-compile/Cargo.toml
[INFO] crate KeenS/pattern-match-compile 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 KeenS/pattern-match-compile 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/KeenS/pattern-match-compile:/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] 3a56b8f5951830a8964fa90fe37e98e084f0401908425d3cffdd8f222549d4c5
[INFO] running `"docker" "start" "-a" "3a56b8f5951830a8964fa90fe37e98e084f0401908425d3cffdd8f222549d4c5"`
[INFO] [stderr]    Compiling pattern-match-compile v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `itertools::Itertools`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use itertools::Itertools;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Symbol`
[INFO] [stderr]   --> src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         Symbol(Symbol),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `"docker" "inspect" "3a56b8f5951830a8964fa90fe37e98e084f0401908425d3cffdd8f222549d4c5"`
[INFO] running `"docker" "rm" "-f" "3a56b8f5951830a8964fa90fe37e98e084f0401908425d3cffdd8f222549d4c5"`
[INFO] [stdout] 3a56b8f5951830a8964fa90fe37e98e084f0401908425d3cffdd8f222549d4c5
[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/KeenS/pattern-match-compile:/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] 020e69e7fe1432e2cf4a19a29027033c944a6acac15d6eaff0b3ffc8f2dbe176
[INFO] running `"docker" "start" "-a" "020e69e7fe1432e2cf4a19a29027033c944a6acac15d6eaff0b3ffc8f2dbe176"`
[INFO] [stderr]    Compiling pattern-match-compile v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `itertools::Itertools`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use itertools::Itertools;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Symbol`
[INFO] [stderr]   --> src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         Symbol(Symbol),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "020e69e7fe1432e2cf4a19a29027033c944a6acac15d6eaff0b3ffc8f2dbe176"`
[INFO] running `"docker" "rm" "-f" "020e69e7fe1432e2cf4a19a29027033c944a6acac15d6eaff0b3ffc8f2dbe176"`
[INFO] [stdout] 020e69e7fe1432e2cf4a19a29027033c944a6acac15d6eaff0b3ffc8f2dbe176
[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/KeenS/pattern-match-compile:/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] 82fd524a50a4bd9457344f8591fcd4f2480fb022de3e697b9bcfdd6b1a107271
[INFO] running `"docker" "start" "-a" "82fd524a50a4bd9457344f8591fcd4f2480fb022de3e697b9bcfdd6b1a107271"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pattern_match_compile-f785fdd3e9bb2959
[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" "82fd524a50a4bd9457344f8591fcd4f2480fb022de3e697b9bcfdd6b1a107271"`
[INFO] running `"docker" "rm" "-f" "82fd524a50a4bd9457344f8591fcd4f2480fb022de3e697b9bcfdd6b1a107271"`
[INFO] [stdout] 82fd524a50a4bd9457344f8591fcd4f2480fb022de3e697b9bcfdd6b1a107271