[INFO] fetching crate mrsc 0.3.1...
[INFO] testing mrsc-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mrsc 0.3.1 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate mrsc 0.3.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mrsc 0.3.1
[INFO] finished tweaking crates.io crate mrsc 0.3.1
[INFO] tweaked toml for crates.io crate mrsc 0.3.1 written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff3a24f32b30324dd1b5c670310f72fa18ea0e7ba7b275e7f96b7431da4d6335
[INFO] running `Command { std: "docker" "start" "-a" "ff3a24f32b30324dd1b5c670310f72fa18ea0e7ba7b275e7f96b7431da4d6335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff3a24f32b30324dd1b5c670310f72fa18ea0e7ba7b275e7f96b7431da4d6335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3a24f32b30324dd1b5c670310f72fa18ea0e7ba7b275e7f96b7431da4d6335", kill_on_drop: false }`
[INFO] [stdout] ff3a24f32b30324dd1b5c670310f72fa18ea0e7ba7b275e7f96b7431da4d6335
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c70ac24d3b6be5188a4e530f18dc9bfc5a76c3ff424d80fa8f62d4ef96f74df3
[INFO] running `Command { std: "docker" "start" "-a" "c70ac24d3b6be5188a4e530f18dc9bfc5a76c3ff424d80fa8f62d4ef96f74df3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mrsc v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "c70ac24d3b6be5188a4e530f18dc9bfc5a76c3ff424d80fa8f62d4ef96f74df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c70ac24d3b6be5188a4e530f18dc9bfc5a76c3ff424d80fa8f62d4ef96f74df3", kill_on_drop: false }`
[INFO] [stdout] c70ac24d3b6be5188a4e530f18dc9bfc5a76c3ff424d80fa8f62d4ef96f74df3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd81f98b31794ad39e07d38d5fc9fd14b913a112011b15eb4c3d0a0d31ab6cd6
[INFO] running `Command { std: "docker" "start" "-a" "dd81f98b31794ad39e07d38d5fc9fd14b913a112011b15eb4c3d0a0d31ab6cd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling mrsc v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "dd81f98b31794ad39e07d38d5fc9fd14b913a112011b15eb4c3d0a0d31ab6cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd81f98b31794ad39e07d38d5fc9fd14b913a112011b15eb4c3d0a0d31ab6cd6", kill_on_drop: false }`
[INFO] [stdout] dd81f98b31794ad39e07d38d5fc9fd14b913a112011b15eb4c3d0a0d31ab6cd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d83595f930563de2e33808db9d7953d12b506a313952ad5dfb5b757294d4bdca
[INFO] running `Command { std: "docker" "start" "-a" "d83595f930563de2e33808db9d7953d12b506a313952ad5dfb5b757294d4bdca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mrsc-c84392e0b0decfc7)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::try_recv ... ok
[INFO] [stdout] test tests::readme ... ok
[INFO] [stdout] test tests::take ... ok
[INFO] [stdout] test tests::single_requester ... ok
[INFO] [stdout] test tests::recv_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mrsc
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - Server<T, R>::new (line 52) ... ok
[INFO] [stdout] test src/lib.rs - Server<T, R>::pop (line 70) ... ok
[INFO] [stdout] test src/lib.rs - Channel<T, R>::req (line 120) ... ok
[INFO] [stdout] test src/lib.rs - Server<T, R>::recv (line 85) ... ok
[INFO] [stdout] test src/lib.rs - Request<T, R>::reply (line 164) ... ok
[INFO] [stdout] test src/lib.rs - EmptyRequest<R>::reply (line 192) ... ok
[INFO] [stdout] test src/lib.rs - Response<R>::recv (line 223) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d83595f930563de2e33808db9d7953d12b506a313952ad5dfb5b757294d4bdca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83595f930563de2e33808db9d7953d12b506a313952ad5dfb5b757294d4bdca", kill_on_drop: false }`
[INFO] [stdout] d83595f930563de2e33808db9d7953d12b506a313952ad5dfb5b757294d4bdca