[INFO] cloning repository https://github.com/JessicaTemplet/rust_internals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JessicaTemplet/rust_internals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJessicaTemplet%2Frust_internals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJessicaTemplet%2Frust_internals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f1f77a06684553a6ab0628745d7729aacae8ecb
[INFO] testing JessicaTemplet/rust_internals against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJessicaTemplet%2Frust_internals" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JessicaTemplet/rust_internals
[INFO] finished tweaking git repo https://github.com/JessicaTemplet/rust_internals
[INFO] tweaked toml for git repo https://github.com/JessicaTemplet/rust_internals written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JessicaTemplet/rust_internals on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JessicaTemplet/rust_internals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7
[INFO] running `Command { std: "docker" "start" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling memory_arena v0.1.0 (/opt/rustwide/workdir/memory_arena)
[INFO] [stderr]    Compiling thread_pool v0.1.0 (/opt/rustwide/workdir/thread_pool)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/release/examples/basic
[INFO] [stderr]   |
[INFO] [stderr]   = note: the example target `basic` in package `thread_pool v0.1.0 (/opt/rustwide/workdir/thread_pool)` has the same output filename as the example target `basic` in package `memory_arena v0.1.0 (/opt/rustwide/workdir/memory_arena)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/release/examples/basic.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the example target `basic` in package `thread_pool v0.1.0 (/opt/rustwide/workdir/thread_pool)` has the same output filename as the example target `basic` in package `memory_arena v0.1.0 (/opt/rustwide/workdir/memory_arena)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr]    Compiling memory_arena v0.1.0 (/opt/rustwide/workdir/memory_arena)
[INFO] [stderr]    Compiling thread_pool v0.1.0 (/opt/rustwide/workdir/thread_pool)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/release/examples/basic
[INFO] [stderr]   |
[INFO] [stderr]   = note: the example target `basic` in package `thread_pool v0.1.0 (/opt/rustwide/workdir/thread_pool)` has the same output filename as the example target `basic` in package `memory_arena v0.1.0 (/opt/rustwide/workdir/memory_arena)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/release/examples/basic.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the example target `basic` in package `thread_pool v0.1.0 (/opt/rustwide/workdir/thread_pool)` has the same output filename as the example target `basic` in package `memory_arena v0.1.0 (/opt/rustwide/workdir/memory_arena)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/memory_arena-31d9e14ebc8cc266)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::reset_runs_drops_and_allows_reuse ... ok
[INFO] [stdout] test tests::drop_glue_runs_when_arena_drops ... ok
[INFO] [stdout] test tests::allocates_many_disjoint_values_across_chunk_growth ... ok
[INFO] [stdout] test tests::stores_and_returns_correct_values ... ok
[INFO] [stdout] test tests::respects_type_alignment ... ok
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/thread_pool-4a11d90a8871385c)
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::executes_and_returns_result ... ok
[INFO] [stdout] test tests::dropping_the_pool_waits_for_queued_jobs ... ok
[INFO] [stdout] test tests::job_panic_is_reported_and_pool_keeps_working ... ok
[INFO] [stdout] test tests::pool_can_be_shared_across_threads_via_arc ... ok
[INFO] [stdout] test tests::runs_many_jobs_and_join_waits_for_all_of_them ... ok
[INFO] [stdout] test tests::join_blocks_until_slow_jobs_finish ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests memory_arena
[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] [stderr]    Doc-tests thread_pool
[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" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7", kill_on_drop: false }`
[INFO] [stdout] 872c694cd2932b5253504970b3208f71d8145aac2563751102b9ce1d4c8a83b7