[INFO] updating cached repository pbchekin/mutable-threads
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pbchekin/mutable-threads
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pbchekin/mutable-threads" "work/ex/beta-1.37-6/sources/1.36.0/gh/pbchekin/mutable-threads"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pbchekin/mutable-threads'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pbchekin/mutable-threads" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pbchekin/mutable-threads"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pbchekin/mutable-threads'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2a00d2b133bf00276fb34b55df64f8e9c5d6b63
[INFO] sha for GitHub repo pbchekin/mutable-threads: f2a00d2b133bf00276fb34b55df64f8e9c5d6b63
[INFO] validating manifest of pbchekin/mutable-threads 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 pbchekin/mutable-threads 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 pbchekin/mutable-threads
[INFO] finished frobbing pbchekin/mutable-threads
[INFO] frobbed toml for pbchekin/mutable-threads written to work/ex/beta-1.37-6/sources/1.36.0/gh/pbchekin/mutable-threads/Cargo.toml
[INFO] started frobbing pbchekin/mutable-threads
[INFO] finished frobbing pbchekin/mutable-threads
[INFO] frobbed toml for pbchekin/mutable-threads written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pbchekin/mutable-threads/Cargo.toml
[INFO] crate pbchekin/mutable-threads 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pbchekin/mutable-threads 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pbchekin/mutable-threads:/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] 79fc48ce78daee192dac982ba0d62ea791b7e6294d7fa4e6990efa1f2d78867c
[INFO] running `"docker" "start" "-a" "79fc48ce78daee192dac982ba0d62ea791b7e6294d7fa4e6990efa1f2d78867c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling linebased v0.3.1
[INFO] [stderr]    Compiling mute-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.47s
[INFO] running `"docker" "inspect" "79fc48ce78daee192dac982ba0d62ea791b7e6294d7fa4e6990efa1f2d78867c"`
[INFO] running `"docker" "rm" "-f" "79fc48ce78daee192dac982ba0d62ea791b7e6294d7fa4e6990efa1f2d78867c"`
[INFO] [stdout] 79fc48ce78daee192dac982ba0d62ea791b7e6294d7fa4e6990efa1f2d78867c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pbchekin/mutable-threads:/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] 036664f4f207f99d140a985ccf33c45201420aec3de053b0c3ca6fca2ac7b76c
[INFO] running `"docker" "start" "-a" "036664f4f207f99d140a985ccf33c45201420aec3de053b0c3ca6fca2ac7b76c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling mute-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "036664f4f207f99d140a985ccf33c45201420aec3de053b0c3ca6fca2ac7b76c"`
[INFO] running `"docker" "rm" "-f" "036664f4f207f99d140a985ccf33c45201420aec3de053b0c3ca6fca2ac7b76c"`
[INFO] [stdout] 036664f4f207f99d140a985ccf33c45201420aec3de053b0c3ca6fca2ac7b76c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pbchekin/mutable-threads:/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] 920a62254f0ea2b92f92eaeac3e5013bd55fe2bf05fef025ca8b7e7136fbd66a
[INFO] running `"docker" "start" "-a" "920a62254f0ea2b92f92eaeac3e5013bd55fe2bf05fef025ca8b7e7136fbd66a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mute_test-8466fbd55eb9228a
[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" "920a62254f0ea2b92f92eaeac3e5013bd55fe2bf05fef025ca8b7e7136fbd66a"`
[INFO] running `"docker" "rm" "-f" "920a62254f0ea2b92f92eaeac3e5013bd55fe2bf05fef025ca8b7e7136fbd66a"`
[INFO] [stdout] 920a62254f0ea2b92f92eaeac3e5013bd55fe2bf05fef025ca8b7e7136fbd66a