[INFO] cloning repository https://github.com/JosephFerano/a02
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JosephFerano/a02" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Fa02", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Fa02'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdff428101764a9227867a638339d1b7d6514646
[INFO] testing JosephFerano/a02 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephFerano%2Fa02" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JosephFerano/a02 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JosephFerano/a02
[INFO] finished tweaking git repo https://github.com/JosephFerano/a02
[INFO] tweaked toml for git repo https://github.com/JosephFerano/a02 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/JosephFerano/a02 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f7bab4f635d8a9b3423e593f0bb043eeb5e4f4f93ad7d1b747b5311fba0a196
[INFO] running `Command { std: "docker" "start" "-a" "2f7bab4f635d8a9b3423e593f0bb043eeb5e4f4f93ad7d1b747b5311fba0a196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f7bab4f635d8a9b3423e593f0bb043eeb5e4f4f93ad7d1b747b5311fba0a196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7bab4f635d8a9b3423e593f0bb043eeb5e4f4f93ad7d1b747b5311fba0a196", kill_on_drop: false }`
[INFO] [stdout] 2f7bab4f635d8a9b3423e593f0bb043eeb5e4f4f93ad7d1b747b5311fba0a196
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acf9e2a658f18a525b65bb7bb2c538c663ec7c1d3a5e8d2b0b8208ed7fdf038d
[INFO] running `Command { std: "docker" "start" "-a" "acf9e2a658f18a525b65bb7bb2c538c663ec7c1d3a5e8d2b0b8208ed7fdf038d", kill_on_drop: false }`
[INFO] [stderr]    Compiling a02 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/wsclock.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let mut index;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "acf9e2a658f18a525b65bb7bb2c538c663ec7c1d3a5e8d2b0b8208ed7fdf038d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acf9e2a658f18a525b65bb7bb2c538c663ec7c1d3a5e8d2b0b8208ed7fdf038d", kill_on_drop: false }`
[INFO] [stdout] acf9e2a658f18a525b65bb7bb2c538c663ec7c1d3a5e8d2b0b8208ed7fdf038d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 658c140c4d231cb72aa49d1815b7750ef3d7783efdb7e4aeceb2a11aee6535fe
[INFO] running `Command { std: "docker" "start" "-a" "658c140c4d231cb72aa49d1815b7750ef3d7783efdb7e4aeceb2a11aee6535fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling a02 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/wsclock.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let mut index;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "658c140c4d231cb72aa49d1815b7750ef3d7783efdb7e4aeceb2a11aee6535fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658c140c4d231cb72aa49d1815b7750ef3d7783efdb7e4aeceb2a11aee6535fe", kill_on_drop: false }`
[INFO] [stdout] 658c140c4d231cb72aa49d1815b7750ef3d7783efdb7e4aeceb2a11aee6535fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 789041cfe437b8d192f3b52e7ffef593631323eebe66ef2980ce90eb54c3c7bd
[INFO] running `Command { std: "docker" "start" "-a" "789041cfe437b8d192f3b52e7ffef593631323eebe66ef2980ce90eb54c3c7bd", kill_on_drop: false }`
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/a02-6a48e1c0f381b2cc)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optimal-4fd5f7392b891844)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 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::replace_first_thrice ... 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::third_miss_is_miss_replace ... ok
[INFO] [stdout] test tests::replace_first_twice_because_of_miss ... ok
[INFO] [stdout] test tests::three_initial_accesses_are_all_simple_misses ... ok
[INFO] [stdout] test tests::replace_first_and_third_because_they_are_no_longer_accessed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::alternating_hits_and_misses ... ok
[INFO] [stdout] test tests::replace_the_first_one_because_first_three_are_referenced ... ok
[INFO] [stdout] test tests::replace_each_subsequent_page_because_none_are_referenced ... ok
[INFO] [stdout] test tests::all_are_subsequent_hits_after_first_miss ... ok
[INFO] [stdout] test tests::replace_third_because_its_no_longer_referenced_after_replacing_first ... 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::three_initial_accesses_are_all_simple_misses ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/second-b967538d603f3ef5)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wsclock-f0c8ba25350fbe55)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests a02
[INFO] [stdout] running 7 tests
[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::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::third_miss_is_miss_replace ... ok
[INFO] [stdout] test tests::three_initial_accesses_are_all_simple_misses ... ok
[INFO] [stdout] test tests::skips_dirty_page_two_for_clean_three_when_age_is_old ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "789041cfe437b8d192f3b52e7ffef593631323eebe66ef2980ce90eb54c3c7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789041cfe437b8d192f3b52e7ffef593631323eebe66ef2980ce90eb54c3c7bd", kill_on_drop: false }`
[INFO] [stdout] 789041cfe437b8d192f3b52e7ffef593631323eebe66ef2980ce90eb54c3c7bd