[INFO] crate message_bus 0.1.0 is already in cache
[INFO] testing message_bus-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate message_bus 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate message_bus 0.1.0 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 crates.io crate message_bus 0.1.0
[INFO] finished tweaking crates.io crate message_bus 0.1.0
[INFO] tweaked toml for crates.io crate message_bus 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 34b4213b4a7bc930243649a82aa602a50294454a1df17b2afdb30d5c0a37dd7d
[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" "34b4213b4a7bc930243649a82aa602a50294454a1df17b2afdb30d5c0a37dd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34b4213b4a7bc930243649a82aa602a50294454a1df17b2afdb30d5c0a37dd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b4213b4a7bc930243649a82aa602a50294454a1df17b2afdb30d5c0a37dd7d", kill_on_drop: false }`
[INFO] [stdout] 34b4213b4a7bc930243649a82aa602a50294454a1df17b2afdb30d5c0a37dd7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] ca520ce4dbcacdd7534f0897faf1ffb9b5eb3b81d682593ce7b224b5342e83ec
[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" "ca520ce4dbcacdd7534f0897faf1ffb9b5eb3b81d682593ce7b224b5342e83ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling message_bus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/message_bus.rs:79:69
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         self.output_sender.send(v.message).unwrap();;
[INFO] [stdout]    |                                                                     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:10:68
[INFO] [stdout]    |
[INFO] [stdout] 10 |         bus.sender.send(Message::<i32>::new(i, i as u64)).unwrap();;
[INFO] [stdout]    |                                                                    ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "ca520ce4dbcacdd7534f0897faf1ffb9b5eb3b81d682593ce7b224b5342e83ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca520ce4dbcacdd7534f0897faf1ffb9b5eb3b81d682593ce7b224b5342e83ec", kill_on_drop: false }`
[INFO] [stdout] ca520ce4dbcacdd7534f0897faf1ffb9b5eb3b81d682593ce7b224b5342e83ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5356df36eebc643cb298b539a24946445a348ae3c9e2dfc15187d9938e90333d
[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" "5356df36eebc643cb298b539a24946445a348ae3c9e2dfc15187d9938e90333d", kill_on_drop: false }`
[INFO] [stderr]    Compiling message_bus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/message_bus.rs:79:69
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         self.output_sender.send(v.message).unwrap();;
[INFO] [stdout]    |                                                                     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/message_bus.rs:79:69
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         self.output_sender.send(v.message).unwrap();;
[INFO] [stdout]    |                                                                     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:10:68
[INFO] [stdout]    |
[INFO] [stdout] 10 |         bus.sender.send(Message::<i32>::new(i, i as u64)).unwrap();;
[INFO] [stdout]    |                                                                    ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "5356df36eebc643cb298b539a24946445a348ae3c9e2dfc15187d9938e90333d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5356df36eebc643cb298b539a24946445a348ae3c9e2dfc15187d9938e90333d", kill_on_drop: false }`
[INFO] [stdout] 5356df36eebc643cb298b539a24946445a348ae3c9e2dfc15187d9938e90333d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 1f8d50591960a4196dcc99a3e0a73d480f30ebe12d92978dd01d286aa58fffda
[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" "1f8d50591960a4196dcc99a3e0a73d480f30ebe12d92978dd01d286aa58fffda", kill_on_drop: false }`
[INFO] [stderr]    Compiling message_bus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/message_bus.rs:79:69
[INFO] [stderr]    |
[INFO] [stderr] 79 |                         self.output_sender.send(v.message).unwrap();;
[INFO] [stderr]    |                                                                     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/message_bus.rs:79:69
[INFO] [stderr]    |
[INFO] [stderr] 79 |                         self.output_sender.send(v.message).unwrap();;
[INFO] [stderr]    |                                                                     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/main.rs:10:68
[INFO] [stderr]    |
[INFO] [stderr] 10 |         bus.sender.send(Message::<i32>::new(i, i as u64)).unwrap();;
[INFO] [stderr]    |                                                                    ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/message_bus-4fcc83cab38a0f0e
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test message_bus::check_buffer_index_for_times_is_calculated_correctly ... ok
[INFO] [stdout] test message_bus::check_messages_are_returned_at_correct_time ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/message_bus-4b3292791f2b8c48
[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]    Doc-tests message_bus
[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 `Command { std: "docker" "inspect" "1f8d50591960a4196dcc99a3e0a73d480f30ebe12d92978dd01d286aa58fffda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f8d50591960a4196dcc99a3e0a73d480f30ebe12d92978dd01d286aa58fffda", kill_on_drop: false }`
[INFO] [stdout] 1f8d50591960a4196dcc99a3e0a73d480f30ebe12d92978dd01d286aa58fffda