[INFO] updating cached repository MrAaaah/rust_basic_task_multithreading
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MrAaaah/rust_basic_task_multithreading
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MrAaaah/rust_basic_task_multithreading" "work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MrAaaah/rust_basic_task_multithreading" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MrAaaah/rust_basic_task_multithreading"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MrAaaah/rust_basic_task_multithreading'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4add926ab46fce569837f21ae6033f05201a0ebb
[INFO] sha for GitHub repo MrAaaah/rust_basic_task_multithreading: 4add926ab46fce569837f21ae6033f05201a0ebb
[INFO] validating manifest of MrAaaah/rust_basic_task_multithreading on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of MrAaaah/rust_basic_task_multithreading on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing MrAaaah/rust_basic_task_multithreading
[INFO] finished frobbing MrAaaah/rust_basic_task_multithreading
[INFO] frobbed toml for MrAaaah/rust_basic_task_multithreading written to work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading/Cargo.toml
[INFO] started frobbing MrAaaah/rust_basic_task_multithreading
[INFO] finished frobbing MrAaaah/rust_basic_task_multithreading
[INFO] frobbed toml for MrAaaah/rust_basic_task_multithreading written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MrAaaah/rust_basic_task_multithreading/Cargo.toml
[INFO] crate MrAaaah/rust_basic_task_multithreading already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing MrAaaah/rust_basic_task_multithreading against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8182891db631639052dd869f6afc9d9d740ce81f8845284c5d5cc0e2fc585615
[INFO] running `"docker" "start" "-a" "8182891db631639052dd869f6afc9d9d740ce81f8845284c5d5cc0e2fc585615"`
[INFO] [stderr]    Compiling multithread v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 thread::sleep_ms(rng.gen::<u32>() % 200);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "8182891db631639052dd869f6afc9d9d740ce81f8845284c5d5cc0e2fc585615"`
[INFO] running `"docker" "rm" "-f" "8182891db631639052dd869f6afc9d9d740ce81f8845284c5d5cc0e2fc585615"`
[INFO] [stdout] 8182891db631639052dd869f6afc9d9d740ce81f8845284c5d5cc0e2fc585615
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 69a8505cc869bcbef4045ef3bab168975978cb7f8016a982491b69820088e20d
[INFO] running `"docker" "start" "-a" "69a8505cc869bcbef4045ef3bab168975978cb7f8016a982491b69820088e20d"`
[INFO] [stderr]    Compiling multithread v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 thread::sleep_ms(rng.gen::<u32>() % 200);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "69a8505cc869bcbef4045ef3bab168975978cb7f8016a982491b69820088e20d"`
[INFO] running `"docker" "rm" "-f" "69a8505cc869bcbef4045ef3bab168975978cb7f8016a982491b69820088e20d"`
[INFO] [stdout] 69a8505cc869bcbef4045ef3bab168975978cb7f8016a982491b69820088e20d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MrAaaah/rust_basic_task_multithreading:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 3bcd608f0310e7940361d4b433811788ac6d89ea3c4daea6fdaf17114ff4235a
[INFO] running `"docker" "start" "-a" "3bcd608f0310e7940361d4b433811788ac6d89ea3c4daea6fdaf17114ff4235a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/multithread-26f6ec9a1d5c78dc
[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" "3bcd608f0310e7940361d4b433811788ac6d89ea3c4daea6fdaf17114ff4235a"`
[INFO] running `"docker" "rm" "-f" "3bcd608f0310e7940361d4b433811788ac6d89ea3c4daea6fdaf17114ff4235a"`
[INFO] [stdout] 3bcd608f0310e7940361d4b433811788ac6d89ea3c4daea6fdaf17114ff4235a