[INFO] crate perplex 0.4.1 is already in cache
[INFO] extracting crate perplex 0.4.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/perplex/0.4.1
[INFO] extracting crate perplex 0.4.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/perplex/0.4.1
[INFO] validating manifest of perplex-0.4.1 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 perplex-0.4.1 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 perplex-0.4.1
[INFO] finished frobbing perplex-0.4.1
[INFO] frobbed toml for perplex-0.4.1 written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/perplex/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing perplex-0.4.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 06c2362b95325ae93ea907b0109e6d96bc8afe715244bf6483eb7f2f69c44aa6
[INFO] running `"docker" "start" "-a" "06c2362b95325ae93ea907b0109e6d96bc8afe715244bf6483eb7f2f69c44aa6"`
[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 14.92s
[INFO] running `"docker" "inspect" "06c2362b95325ae93ea907b0109e6d96bc8afe715244bf6483eb7f2f69c44aa6"`
[INFO] running `"docker" "rm" "-f" "06c2362b95325ae93ea907b0109e6d96bc8afe715244bf6483eb7f2f69c44aa6"`
[INFO] [stdout] 06c2362b95325ae93ea907b0109e6d96bc8afe715244bf6483eb7f2f69c44aa6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d64d292cfbfb5a7088265c264d88b64251ea3dee7c0d6c206c5a5e8c42a87cb1
[INFO] running `"docker" "start" "-a" "d64d292cfbfb5a7088265c264d88b64251ea3dee7c0d6c206c5a5e8c42a87cb1"`
[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 12.79s
[INFO] running `"docker" "inspect" "d64d292cfbfb5a7088265c264d88b64251ea3dee7c0d6c206c5a5e8c42a87cb1"`
[INFO] running `"docker" "rm" "-f" "d64d292cfbfb5a7088265c264d88b64251ea3dee7c0d6c206c5a5e8c42a87cb1"`
[INFO] [stdout] d64d292cfbfb5a7088265c264d88b64251ea3dee7c0d6c206c5a5e8c42a87cb1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 4afffd7152f099393dc20f156ddb24f2b942e7c7e448f7d9dce0bf199be2d74b
[INFO] running `"docker" "start" "-a" "4afffd7152f099393dc20f156ddb24f2b942e7c7e448f7d9dce0bf199be2d74b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/perplex-0bc34e9ca4e1d1b9
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test lexer::tests::comment_single_line ... ok
[INFO] [stdout] test lexer::tests::quoted_escapes ... ok
[INFO] [stdout] test lexer::tests::comment_multiple_lines ... ok
[INFO] [stdout] test lexer::tests::comment_inline ... ok
[INFO] [stdout] test item_set::tests::left_recursion ... ok
[INFO] [stdout] test first::test::simple_terminal ... ok
[INFO] [stdout] test lexer::tests::quoted_escapes_backslash ... ok
[INFO] [stdout] test lexer::tests::tokens1 ... ok
[INFO] [stdout] test first::test::simple_indirection ... ok
[INFO] [stdout] test lexer::tests::tokens2 ... ok
[INFO] [stdout] test parser::tests::simple1 ... ok
[INFO] [stdout] test first::test::epsilon_rule_is_transparent ... 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-f91a6553b4267a7c
[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-ef28c66c0d673b2a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test simple2 ... ok
[INFO] [stdout] test simple3 ... ok
[INFO] [stdout] test simple1 ... ok
[INFO] [stdout] test simple4 ... 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" "4afffd7152f099393dc20f156ddb24f2b942e7c7e448f7d9dce0bf199be2d74b"`
[INFO] running `"docker" "rm" "-f" "4afffd7152f099393dc20f156ddb24f2b942e7c7e448f7d9dce0bf199be2d74b"`
[INFO] [stdout] 4afffd7152f099393dc20f156ddb24f2b942e7c7e448f7d9dce0bf199be2d74b