[INFO] cloning repository https://github.com/soenkehahn/rust-skipchannel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/soenkehahn/rust-skipchannel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoenkehahn%2Frust-skipchannel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoenkehahn%2Frust-skipchannel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 203559d32cf8600a5630404de793f95e4f18a407
[INFO] testing soenkehahn/rust-skipchannel against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoenkehahn%2Frust-skipchannel" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/soenkehahn/rust-skipchannel on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/soenkehahn/rust-skipchannel
[INFO] finished tweaking git repo https://github.com/soenkehahn/rust-skipchannel
[INFO] tweaked toml for git repo https://github.com/soenkehahn/rust-skipchannel written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/soenkehahn/rust-skipchannel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f9cb2e0435f15341b7b4ea5b9d9dd31fda5a72ab195e82803f61c130298c726
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7f9cb2e0435f15341b7b4ea5b9d9dd31fda5a72ab195e82803f61c130298c726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f9cb2e0435f15341b7b4ea5b9d9dd31fda5a72ab195e82803f61c130298c726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f9cb2e0435f15341b7b4ea5b9d9dd31fda5a72ab195e82803f61c130298c726", kill_on_drop: false }`
[INFO] [stdout] 7f9cb2e0435f15341b7b4ea5b9d9dd31fda5a72ab195e82803f61c130298c726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 45c9f8f29c9ed45649759d3a73422bcf4fc82452c7447e3b53bfb72d7f48a247
[INFO] running `Command { std: "docker" "start" "-a" "45c9f8f29c9ed45649759d3a73422bcf4fc82452c7447e3b53bfb72d7f48a247", kill_on_drop: false }`
[INFO] [stderr]    Compiling skipchannel v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "45c9f8f29c9ed45649759d3a73422bcf4fc82452c7447e3b53bfb72d7f48a247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c9f8f29c9ed45649759d3a73422bcf4fc82452c7447e3b53bfb72d7f48a247", kill_on_drop: false }`
[INFO] [stdout] 45c9f8f29c9ed45649759d3a73422bcf4fc82452c7447e3b53bfb72d7f48a247
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b513085b3ed000b5a9593106512b5925189e6a8f850fe9d7a11815dc56cdf65
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0b513085b3ed000b5a9593106512b5925189e6a8f850fe9d7a11815dc56cdf65", kill_on_drop: false }`
[INFO] [stderr]    Compiling skipchannel v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "0b513085b3ed000b5a9593106512b5925189e6a8f850fe9d7a11815dc56cdf65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b513085b3ed000b5a9593106512b5925189e6a8f850fe9d7a11815dc56cdf65", kill_on_drop: false }`
[INFO] [stdout] 0b513085b3ed000b5a9593106512b5925189e6a8f850fe9d7a11815dc56cdf65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 61318b6a9ca68058abd48f8e3ea4bd720f7f34585a862a7e49881e4bf75e2fb8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61318b6a9ca68058abd48f8e3ea4bd720f7f34585a862a7e49881e4bf75e2fb8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/skipchannel-a525ec863fe9a197
[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::allows_to_send_one_value ... ok
[INFO] [stdout] test tests::skip_channel::drop::drops_unconsumed_values_on_subsequent_sends ... ok
[INFO] [stdout] test tests::skip_channel::drop::value_is_dropped_when_sender_and_receiver_are_dropped ... ok
[INFO] [stdout] test tests::skip_channel::yields_none_when_nothing_is_sent ... ok
[INFO] [stdout] test tests::skip_channel::returns_none_when_a_sent_value_is_already_consumed ... ok
[INFO] [stdout] test tests::skip_channel::allows_to_send_values_between_threads ... 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::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 `Command { std: "docker" "inspect" "61318b6a9ca68058abd48f8e3ea4bd720f7f34585a862a7e49881e4bf75e2fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61318b6a9ca68058abd48f8e3ea4bd720f7f34585a862a7e49881e4bf75e2fb8", kill_on_drop: false }`
[INFO] [stdout] 61318b6a9ca68058abd48f8e3ea4bd720f7f34585a862a7e49881e4bf75e2fb8