[INFO] crate perplex 0.4.1 is already in cache
[INFO] extracting crate perplex 0.4.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/perplex/0.4.1
[INFO] extracting crate perplex 0.4.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/perplex/0.4.1
[INFO] validating manifest of perplex-0.4.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of perplex-0.4.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing perplex-0.4.1
[INFO] finished frobbing perplex-0.4.1
[INFO] frobbed toml for perplex-0.4.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/perplex/0.4.1/Cargo.toml
[INFO] started frobbing perplex-0.4.1
[INFO] finished frobbing perplex-0.4.1
[INFO] frobbed toml for perplex-0.4.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/perplex/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing perplex-0.4.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/perplex/0.4.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] d10a528e53b4a6b91fe7424199ac16c251358b627bb70dc6f2044d5c6af17657
[INFO] running `"docker" "start" "-a" "d10a528e53b4a6b91fe7424199ac16c251358b627bb70dc6f2044d5c6af17657"`
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling perplex-runtime v0.1.1
[INFO] [stderr]    Compiling stderrlog v0.4.1
[INFO] [stderr]    Compiling perplex v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/backend.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let mut ta: Vec<_> = state
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/honalee.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut item_set = &mut done_list[index];
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.84s
[INFO] running `"docker" "inspect" "d10a528e53b4a6b91fe7424199ac16c251358b627bb70dc6f2044d5c6af17657"`
[INFO] running `"docker" "rm" "-f" "d10a528e53b4a6b91fe7424199ac16c251358b627bb70dc6f2044d5c6af17657"`
[INFO] [stdout] d10a528e53b4a6b91fe7424199ac16c251358b627bb70dc6f2044d5c6af17657
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/perplex/0.4.1:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 58183f3a0fa85255d9f08787442e58ca0cb90b53309234a08998d7b2980dbe6c
[INFO] running `"docker" "start" "-a" "58183f3a0fa85255d9f08787442e58ca0cb90b53309234a08998d7b2980dbe6c"`
[INFO] [stderr]    Compiling perplex v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/backend.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let mut ta: Vec<_> = state
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/honalee.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut item_set = &mut done_list[index];
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.80s
[INFO] running `"docker" "inspect" "58183f3a0fa85255d9f08787442e58ca0cb90b53309234a08998d7b2980dbe6c"`
[INFO] running `"docker" "rm" "-f" "58183f3a0fa85255d9f08787442e58ca0cb90b53309234a08998d7b2980dbe6c"`
[INFO] [stdout] 58183f3a0fa85255d9f08787442e58ca0cb90b53309234a08998d7b2980dbe6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/perplex/0.4.1:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] ea0d9739e9c6da263451dfd70abcd652e0ca8dc48927d49be9580342643a62ec
[INFO] running `"docker" "start" "-a" "ea0d9739e9c6da263451dfd70abcd652e0ca8dc48927d49be9580342643a62ec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/perplex-43b55aef9bace23f
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test first::test::epsilon_rule_is_transparent ... ok
[INFO] [stdout] test first::test::simple_indirection ... ok
[INFO] [stdout] test lexer::tests::quoted_escapes ... ok
[INFO] [stdout] test lexer::tests::quoted_escapes_backslash ... ok
[INFO] [stdout] test lexer::tests::comment_single_line ... ok
[INFO] [stdout] test lexer::tests::comment_multiple_lines ... ok
[INFO] [stdout] test lexer::tests::comment_inline ... ok
[INFO] [stdout] test lexer::tests::tokens1 ... ok
[INFO] [stdout] test lexer::tests::tokens2 ... ok
[INFO] [stdout] test parser::tests::simple1 ... ok
[INFO] [stdout] test item_set::tests::left_recursion ... ok
[INFO] [stdout] test first::test::simple_terminal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/perplex-2e4380721804c809
[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] [stderr]      Running /opt/crater/target/debug/deps/tribble1-d3005a29ce4e4514
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test simple3 ... ok
[INFO] [stdout] test simple2 ... ok
[INFO] [stdout] test simple4 ... ok
[INFO] [stdout] test simple1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests perplex
[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" "ea0d9739e9c6da263451dfd70abcd652e0ca8dc48927d49be9580342643a62ec"`
[INFO] running `"docker" "rm" "-f" "ea0d9739e9c6da263451dfd70abcd652e0ca8dc48927d49be9580342643a62ec"`
[INFO] [stdout] ea0d9739e9c6da263451dfd70abcd652e0ca8dc48927d49be9580342643a62ec