[INFO] updating cached repository ColonelPhantom/parallel-prime
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ColonelPhantom/parallel-prime
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ColonelPhantom/parallel-prime" "work/ex/beta-1.37-6/sources/1.36.0/gh/ColonelPhantom/parallel-prime"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ColonelPhantom/parallel-prime'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ColonelPhantom/parallel-prime" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ColonelPhantom/parallel-prime"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ColonelPhantom/parallel-prime'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] db38b19833d6ed8859abd71383eae4be1fc0ed75
[INFO] sha for GitHub repo ColonelPhantom/parallel-prime: db38b19833d6ed8859abd71383eae4be1fc0ed75
[INFO] validating manifest of ColonelPhantom/parallel-prime 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 ColonelPhantom/parallel-prime 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 ColonelPhantom/parallel-prime
[INFO] finished frobbing ColonelPhantom/parallel-prime
[INFO] frobbed toml for ColonelPhantom/parallel-prime written to work/ex/beta-1.37-6/sources/1.36.0/gh/ColonelPhantom/parallel-prime/Cargo.toml
[INFO] started frobbing ColonelPhantom/parallel-prime
[INFO] finished frobbing ColonelPhantom/parallel-prime
[INFO] frobbed toml for ColonelPhantom/parallel-prime written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ColonelPhantom/parallel-prime/Cargo.toml
[INFO] crate ColonelPhantom/parallel-prime 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing ColonelPhantom/parallel-prime 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ColonelPhantom/parallel-prime:/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] acefa8d534b5c8cb7399c276a4241499f7fcd090453343e1ffdb9281b943bc83
[INFO] running `"docker" "start" "-a" "acefa8d534b5c8cb7399c276a4241499f7fcd090453343e1ffdb9281b943bc83"`
[INFO] [stderr]    Compiling integer-sqrt v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling prime v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `enqueue`
[INFO] [stderr]   --> src/threadpool.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn enqueue<F: 'static>(&self, f: F) where F: FnOnce()+Send {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `"docker" "inspect" "acefa8d534b5c8cb7399c276a4241499f7fcd090453343e1ffdb9281b943bc83"`
[INFO] running `"docker" "rm" "-f" "acefa8d534b5c8cb7399c276a4241499f7fcd090453343e1ffdb9281b943bc83"`
[INFO] [stdout] acefa8d534b5c8cb7399c276a4241499f7fcd090453343e1ffdb9281b943bc83
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ColonelPhantom/parallel-prime:/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] 853905cb0f7ec30e53eedc5dab9783cd43b5687d09ff4157398e54b9e598f038
[INFO] running `"docker" "start" "-a" "853905cb0f7ec30e53eedc5dab9783cd43b5687d09ff4157398e54b9e598f038"`
[INFO] [stderr]    Compiling prime v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `enqueue`
[INFO] [stderr]   --> src/threadpool.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn enqueue<F: 'static>(&self, f: F) where F: FnOnce()+Send {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "853905cb0f7ec30e53eedc5dab9783cd43b5687d09ff4157398e54b9e598f038"`
[INFO] running `"docker" "rm" "-f" "853905cb0f7ec30e53eedc5dab9783cd43b5687d09ff4157398e54b9e598f038"`
[INFO] [stdout] 853905cb0f7ec30e53eedc5dab9783cd43b5687d09ff4157398e54b9e598f038
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ColonelPhantom/parallel-prime:/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] 9e3482ba27807bc4c2688876e0b3dc41ae48fb22bf601b829fc7e0ce605959dd
[INFO] running `"docker" "start" "-a" "9e3482ba27807bc4c2688876e0b3dc41ae48fb22bf601b829fc7e0ce605959dd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prime-f719b8702549ffbc
[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" "9e3482ba27807bc4c2688876e0b3dc41ae48fb22bf601b829fc7e0ce605959dd"`
[INFO] running `"docker" "rm" "-f" "9e3482ba27807bc4c2688876e0b3dc41ae48fb22bf601b829fc7e0ce605959dd"`
[INFO] [stdout] 9e3482ba27807bc4c2688876e0b3dc41ae48fb22bf601b829fc7e0ce605959dd