[INFO] updating cached repository soenkehahn/rust-skipchannel
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/soenkehahn/rust-skipchannel
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-skipchannel" "work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-skipchannel"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-skipchannel'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-skipchannel" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soenkehahn/rust-skipchannel"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soenkehahn/rust-skipchannel'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 304beb35a373339dce7b8e77ae299201fadc7a17
[INFO] sha for GitHub repo soenkehahn/rust-skipchannel: 304beb35a373339dce7b8e77ae299201fadc7a17
[INFO] validating manifest of soenkehahn/rust-skipchannel 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 soenkehahn/rust-skipchannel 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 soenkehahn/rust-skipchannel
[INFO] finished frobbing soenkehahn/rust-skipchannel
[INFO] frobbed toml for soenkehahn/rust-skipchannel written to work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-skipchannel/Cargo.toml
[INFO] started frobbing soenkehahn/rust-skipchannel
[INFO] finished frobbing soenkehahn/rust-skipchannel
[INFO] frobbed toml for soenkehahn/rust-skipchannel written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soenkehahn/rust-skipchannel/Cargo.toml
[INFO] crate soenkehahn/rust-skipchannel 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing soenkehahn/rust-skipchannel 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-skipchannel:/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] 2dd21680fbe8a7dbdffdb5e05dcbcb01ec2a6d46d74ba47dabaa99ea0ee1b201
[INFO] running `"docker" "start" "-a" "2dd21680fbe8a7dbdffdb5e05dcbcb01ec2a6d46d74ba47dabaa99ea0ee1b201"`
[INFO] [stderr]    Compiling skipchannel v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "2dd21680fbe8a7dbdffdb5e05dcbcb01ec2a6d46d74ba47dabaa99ea0ee1b201"`
[INFO] running `"docker" "rm" "-f" "2dd21680fbe8a7dbdffdb5e05dcbcb01ec2a6d46d74ba47dabaa99ea0ee1b201"`
[INFO] [stdout] 2dd21680fbe8a7dbdffdb5e05dcbcb01ec2a6d46d74ba47dabaa99ea0ee1b201
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-skipchannel:/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] 1e79a21833f3250a4aa85515c05a278c3b88cfdc1bc69a70dd020ab343e237d3
[INFO] running `"docker" "start" "-a" "1e79a21833f3250a4aa85515c05a278c3b88cfdc1bc69a70dd020ab343e237d3"`
[INFO] [stderr]    Compiling skipchannel v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "1e79a21833f3250a4aa85515c05a278c3b88cfdc1bc69a70dd020ab343e237d3"`
[INFO] running `"docker" "rm" "-f" "1e79a21833f3250a4aa85515c05a278c3b88cfdc1bc69a70dd020ab343e237d3"`
[INFO] [stdout] 1e79a21833f3250a4aa85515c05a278c3b88cfdc1bc69a70dd020ab343e237d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-skipchannel:/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] 31346bc521cbdbd00392c3b5d12046a8ddae84d9e5a2f7685d1d45ef8de9ce56
[INFO] running `"docker" "start" "-a" "31346bc521cbdbd00392c3b5d12046a8ddae84d9e5a2f7685d1d45ef8de9ce56"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/skipchannel-13655bd9cb374b4a
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::skip_channel::drop::does_not_drop_values_when_just_the_sender_is_dropped ... ok
[INFO] [stdout] test tests::skip_channel::drop::drops_unconsumed_values_on_subsequent_sends ... ok
[INFO] [stdout] test tests::skip_channel::allows_to_send_one_value ... ok
[INFO] [stdout] test tests::skip_channel::drop::does_not_drop_values_when_just_the_receiver_is_dropped ... ok
[INFO] [stdout] test tests::skip_channel::allows_to_send_values_between_threads ... ok
[INFO] [stdout] test tests::skip_channel::yields_none_when_nothing_is_sent ... ok
[INFO] [stdout] test tests::skip_channel::drop::value_is_dropped_when_sender_and_receiver_are_dropped ... ok
[INFO] [stdout] test tests::skip_channel::returns_none_when_a_sent_value_is_already_consumed ... ok
[INFO] [stdout] test tests::skip_channel::skips_all_values_but_the_last ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests skipchannel
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "31346bc521cbdbd00392c3b5d12046a8ddae84d9e5a2f7685d1d45ef8de9ce56"`
[INFO] running `"docker" "rm" "-f" "31346bc521cbdbd00392c3b5d12046a8ddae84d9e5a2f7685d1d45ef8de9ce56"`
[INFO] [stdout] 31346bc521cbdbd00392c3b5d12046a8ddae84d9e5a2f7685d1d45ef8de9ce56