[INFO] crate lichen 0.3.7 is already in cache
[INFO] extracting crate lichen 0.3.7 into work/ex/beta-1.37-6/sources/1.36.0/reg/lichen/0.3.7
[INFO] extracting crate lichen 0.3.7 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lichen/0.3.7
[INFO] validating manifest of lichen-0.3.7 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 lichen-0.3.7 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 lichen-0.3.7
[INFO] finished frobbing lichen-0.3.7
[INFO] frobbed toml for lichen-0.3.7 written to work/ex/beta-1.37-6/sources/1.36.0/reg/lichen/0.3.7/Cargo.toml
[INFO] started frobbing lichen-0.3.7
[INFO] finished frobbing lichen-0.3.7
[INFO] frobbed toml for lichen-0.3.7 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lichen/0.3.7/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing lichen-0.3.7 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/lichen/0.3.7:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 70993b583a7daa35a355aa92d171e18c0ae2b2590f547259878c435630475627
[INFO] running `"docker" "start" "-a" "70993b583a7daa35a355aa92d171e18c0ae2b2590f547259878c435630475627"`
[INFO] [stderr]    Compiling lichen v0.3.7 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `"docker" "inspect" "70993b583a7daa35a355aa92d171e18c0ae2b2590f547259878c435630475627"`
[INFO] running `"docker" "rm" "-f" "70993b583a7daa35a355aa92d171e18c0ae2b2590f547259878c435630475627"`
[INFO] [stdout] 70993b583a7daa35a355aa92d171e18c0ae2b2590f547259878c435630475627
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/lichen/0.3.7:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ea8d0b07aaa7231beb17bb67edfb543070f30200d2540876c39f50b8a6734bc9
[INFO] running `"docker" "start" "-a" "ea8d0b07aaa7231beb17bb67edfb543070f30200d2540876c39f50b8a6734bc9"`
[INFO] [stderr]    Compiling lichen v0.3.7 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `"docker" "inspect" "ea8d0b07aaa7231beb17bb67edfb543070f30200d2540876c39f50b8a6734bc9"`
[INFO] running `"docker" "rm" "-f" "ea8d0b07aaa7231beb17bb67edfb543070f30200d2540876c39f50b8a6734bc9"`
[INFO] [stdout] ea8d0b07aaa7231beb17bb67edfb543070f30200d2540876c39f50b8a6734bc9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/lichen/0.3.7:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] a2903586e3ef3bbdba173149dc1bbda29af44be9bc82291eba54f1d31c58e7b9
[INFO] running `"docker" "start" "-a" "a2903586e3ef3bbdba173149dc1bbda29af44be9bc82291eba54f1d31c58e7b9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lichen-bfcc71ec6613e4bd
[INFO] [stderr]      Running /opt/crater/target/debug/deps/samples-7f12b63100798fad
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test bitrot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/state-fdf0d8e078f941dd
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test validate_when_block ... ok
[INFO] [stdout] test validate_or_block ... ok
[INFO] [stdout] test validate_def_block ... ok
[INFO] [stdout] test state_mut ... ok
[INFO] [stdout] test parse_cust_fn ... ok
[INFO] [stdout] test parse_def_block ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stream-2ba186b407652c02
[INFO] [stdout] test save_state ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/unit-bc2694acf5cfcbe6
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test stream_parser ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test parse_block ... ok
[INFO] [stdout] test parse_compare_env_block ... ok
[INFO] [stdout] test parse_if_vec_block ... ok
[INFO] [stdout] test inline_logic_inv ... ok
[INFO] [stdout] test parse_qsym_block ... ok
[INFO] [stdout] test parse_follow_nodes ... ok
[INFO] [stdout] test parse_or_logic ... ok
[INFO] [stdout] test parse_next_back_restart ... ok
[INFO] [stdout] test obj_from_scratch ... ok
[INFO] [stdout] test parse_eval_str_block ... ok
[INFO] [stdout] test obj_dupe_mut ... ok
[INFO] [stdout] test parse_qsym_comp_block ... ok
[INFO] [stdout] test parse_return_varkind ... ok
[INFO] [stdout] test validate_inv_logic ... ok
[INFO] [stdout] test parse_select_nodes ... ok
[INFO] [stdout] test validate_qsym_block ... ok
[INFO] [stdout] test obj_dupe_as_nested ... ok
[INFO] [stderr]    Doc-tests lichen
[INFO] [stdout] test validate_reflection_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "a2903586e3ef3bbdba173149dc1bbda29af44be9bc82291eba54f1d31c58e7b9"`
[INFO] running `"docker" "rm" "-f" "a2903586e3ef3bbdba173149dc1bbda29af44be9bc82291eba54f1d31c58e7b9"`
[INFO] [stdout] a2903586e3ef3bbdba173149dc1bbda29af44be9bc82291eba54f1d31c58e7b9