[INFO] updating cached repository JosephFerano/a02
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JosephFerano/a02
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JosephFerano/a02" "work/ex/beta-1.37-6/sources/1.36.0/gh/JosephFerano/a02"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/JosephFerano/a02'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JosephFerano/a02" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JosephFerano/a02"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JosephFerano/a02'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cdff428101764a9227867a638339d1b7d6514646
[INFO] sha for GitHub repo JosephFerano/a02: cdff428101764a9227867a638339d1b7d6514646
[INFO] validating manifest of JosephFerano/a02 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 JosephFerano/a02 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 JosephFerano/a02
[INFO] finished frobbing JosephFerano/a02
[INFO] frobbed toml for JosephFerano/a02 written to work/ex/beta-1.37-6/sources/1.36.0/gh/JosephFerano/a02/Cargo.toml
[INFO] started frobbing JosephFerano/a02
[INFO] finished frobbing JosephFerano/a02
[INFO] frobbed toml for JosephFerano/a02 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JosephFerano/a02/Cargo.toml
[INFO] crate JosephFerano/a02 already has a lockfile, it will not be regenerated
[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 JosephFerano/a02 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/gh/JosephFerano/a02:/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] e4b95484dc04edcdb587967f6dd0dd556591db7dfd3e7fc91a17349eba5213bc
[INFO] running `"docker" "start" "-a" "e4b95484dc04edcdb587967f6dd0dd556591db7dfd3e7fc91a17349eba5213bc"`
[INFO] [stderr]    Compiling a02 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/wsclock.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let mut index;
[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 3.41s
[INFO] running `"docker" "inspect" "e4b95484dc04edcdb587967f6dd0dd556591db7dfd3e7fc91a17349eba5213bc"`
[INFO] running `"docker" "rm" "-f" "e4b95484dc04edcdb587967f6dd0dd556591db7dfd3e7fc91a17349eba5213bc"`
[INFO] [stdout] e4b95484dc04edcdb587967f6dd0dd556591db7dfd3e7fc91a17349eba5213bc
[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/gh/JosephFerano/a02:/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] 977c42cc379b49aed40258253dbf494a9f1f9618e49270a96ef97bd76ad54c4f
[INFO] running `"docker" "start" "-a" "977c42cc379b49aed40258253dbf494a9f1f9618e49270a96ef97bd76ad54c4f"`
[INFO] [stderr]    Compiling a02 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/wsclock.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let mut index;
[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 3.71s
[INFO] running `"docker" "inspect" "977c42cc379b49aed40258253dbf494a9f1f9618e49270a96ef97bd76ad54c4f"`
[INFO] running `"docker" "rm" "-f" "977c42cc379b49aed40258253dbf494a9f1f9618e49270a96ef97bd76ad54c4f"`
[INFO] [stdout] 977c42cc379b49aed40258253dbf494a9f1f9618e49270a96ef97bd76ad54c4f
[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/gh/JosephFerano/a02:/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] 3ebc84a5fe669ffd856f80235edc9f32aa7edfe0fa563cb5657e677ca6fb0d68
[INFO] running `"docker" "start" "-a" "3ebc84a5fe669ffd856f80235edc9f32aa7edfe0fa563cb5657e677ca6fb0d68"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/a02-39b51f1b5f9d124a
[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/optimal-04edf99872f4582c
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::all_are_subsequent_hits_after_first_miss ... ok
[INFO] [stdout] test tests::replace_first_thrice ... ok
[INFO] [stdout] test tests::replace_first_twice_because_of_miss ... ok
[INFO] [stdout] test tests::alternating_hits_and_misses ... ok
[INFO] [stdout] test tests::replace_second_because_its_no_longer_accessed ... ok
[INFO] [stdout] test tests::replace_the_last_one_to_be_accessed ... ok
[INFO] [stdout] test tests::replace_first_and_third_because_they_are_no_longer_accessed ... ok
[INFO] [stdout] test tests::third_miss_is_miss_replace ... ok
[INFO] [stdout] test tests::three_initial_accesses_are_all_simple_misses ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/second-ffdfec00feb77c9b
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::three_initial_accesses_are_all_simple_misses ... ok
[INFO] [stdout] test tests::third_miss_is_miss_replace ... ok
[INFO] [stdout] test tests::replace_unreferenced_three_because_two_is_referenced ... ok
[INFO] [stdout] test tests::replace_third_because_its_no_longer_referenced_after_replacing_first ... ok
[INFO] [stdout] test tests::replace_the_first_one_because_first_three_are_referenced ... ok
[INFO] [stdout] test tests::alternating_hits_and_misses ... ok
[INFO] [stdout] test tests::all_are_subsequent_hits_after_first_miss ... ok
[INFO] [stdout] test tests::replace_each_subsequent_page_because_none_are_referenced ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wsclock-ebd8d915a03d224e
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::all_are_subsequent_hits_after_first_miss ... ok
[INFO] [stdout] test tests::alternating_hits_and_misses ... ok
[INFO] [stdout] test tests::evicts_first_then_four_since_two_and_three_are_later_referenced ... ok
[INFO] [stdout] test tests::evicts_one_and_four_because_age_is_old_enough ... ok
[INFO] [stdout] test tests::skips_dirty_page_two_for_clean_three_when_age_is_old ... ok
[INFO] [stdout] test tests::third_miss_is_miss_replace ... ok
[INFO] [stdout] test tests::three_initial_accesses_are_all_simple_misses ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests a02
[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" "3ebc84a5fe669ffd856f80235edc9f32aa7edfe0fa563cb5657e677ca6fb0d68"`
[INFO] running `"docker" "rm" "-f" "3ebc84a5fe669ffd856f80235edc9f32aa7edfe0fa563cb5657e677ca6fb0d68"`
[INFO] [stdout] 3ebc84a5fe669ffd856f80235edc9f32aa7edfe0fa563cb5657e677ca6fb0d68