[INFO] fetching crate bus 2.2.2...
[INFO] extracting crate bus 2.2.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/bus/2.2.2
[INFO] extracting crate bus 2.2.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bus/2.2.2
[INFO] validating manifest of bus-2.2.2 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 bus-2.2.2 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 bus-2.2.2
[INFO] finished frobbing bus-2.2.2
[INFO] frobbed toml for bus-2.2.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/bus/2.2.2/Cargo.toml
[INFO] started frobbing bus-2.2.2
[INFO] finished frobbing bus-2.2.2
[INFO] frobbed toml for bus-2.2.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bus/2.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing bus-2.2.2 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-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bus/2.2.2:/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] 77ad2b387314564e8aacee170645c52d6e638287a344689d537ea83d188d1a48
[INFO] running `"docker" "start" "-a" "77ad2b387314564e8aacee170645c52d6e638287a344689d537ea83d188d1a48"`
[INFO] [stderr]    Compiling atomic-option v0.1.2
[INFO] [stderr]    Compiling bus v2.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "77ad2b387314564e8aacee170645c52d6e638287a344689d537ea83d188d1a48"`
[INFO] running `"docker" "rm" "-f" "77ad2b387314564e8aacee170645c52d6e638287a344689d537ea83d188d1a48"`
[INFO] [stdout] 77ad2b387314564e8aacee170645c52d6e638287a344689d537ea83d188d1a48
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bus/2.2.2:/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] 161774e3f43696065ecb6c6ae5535cdea9addfe157b32514b310ffe8bf9113d3
[INFO] running `"docker" "start" "-a" "161774e3f43696065ecb6c6ae5535cdea9addfe157b32514b310ffe8bf9113d3"`
[INFO] [stderr]    Compiling bus v2.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `"docker" "inspect" "161774e3f43696065ecb6c6ae5535cdea9addfe157b32514b310ffe8bf9113d3"`
[INFO] running `"docker" "rm" "-f" "161774e3f43696065ecb6c6ae5535cdea9addfe157b32514b310ffe8bf9113d3"`
[INFO] [stdout] 161774e3f43696065ecb6c6ae5535cdea9addfe157b32514b310ffe8bf9113d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bus/2.2.2:/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] 39e08480dd6c79a5334d406c45a39552e5d66fac6e39df3df632bc7890eb9114
[INFO] running `"docker" "start" "-a" "39e08480dd6c79a5334d406c45a39552e5d66fac6e39df3df632bc7890eb9114"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bus-74c195202833197c
[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/bench-a45fe241dc5527a6
[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/lib-31098251f57245b8
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test it_detects_closure ... ok
[INFO] [stdout] test it_handles_leaves ... ok
[INFO] [stdout] test it_reads_when_full ... ok
[INFO] [stdout] test it_fails_when_empty ... ok
[INFO] [stdout] test it_runs_blocked_reads ... ok
[INFO] [stdout] test it_fails_when_full ... ok
[INFO] [stdout] test it_iterates ... ok
[INFO] [stdout] test it_recvs_after_close ... ok
[INFO] [stdout] test it_runs_blocked_writes ... ok
[INFO] [stdout] test it_succeeds_when_not_full ... ok
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] test it_can_count_to_10000 ... ok
[INFO] [stdout] test test_busy ... ok
[INFO] [stdout] test aggressive_iteration ... test aggressive_iteration has been running for over 60 seconds
[INFO] [stdout] test aggressive_iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bus
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - BusReader<T>::recv_timeout (line 758) ... ok
[INFO] [stdout] test src/lib.rs - Bus<T>::try_broadcast (line 470) ... ok
[INFO] [stdout] test src/lib.rs -  (line 39) ... ok
[INFO] [stdout] test src/lib.rs - BusReader (line 560) ... ok
[INFO] [stdout] test src/lib.rs - BusReader<T>::try_recv (line 691) ... ok
[INFO] [stdout] test src/lib.rs - Bus<T>::add_rx (line 502) ... ok
[INFO] [stdout] test src/lib.rs -  (line 52) ... ok
[INFO] [stdout] test src/lib.rs -  (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "39e08480dd6c79a5334d406c45a39552e5d66fac6e39df3df632bc7890eb9114"`
[INFO] running `"docker" "rm" "-f" "39e08480dd6c79a5334d406c45a39552e5d66fac6e39df3df632bc7890eb9114"`
[INFO] [stdout] 39e08480dd6c79a5334d406c45a39552e5d66fac6e39df3df632bc7890eb9114