[INFO] fetching crate linereader 0.4.0...
[INFO] testing linereader-0.4.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate linereader 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate linereader 0.4.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linereader 0.4.0
[INFO] finished tweaking crates.io crate linereader 0.4.0
[INFO] tweaked toml for crates.io crate linereader 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate linereader 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", 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] cf966b1519a5f895f7d67d7d7f7bca43335521de73d7bbfcd7f5a1f0f2836db2
[INFO] running `Command { std: "docker" "start" "-a" "cf966b1519a5f895f7d67d7d7f7bca43335521de73d7bbfcd7f5a1f0f2836db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf966b1519a5f895f7d67d7d7f7bca43335521de73d7bbfcd7f5a1f0f2836db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf966b1519a5f895f7d67d7d7f7bca43335521de73d7bbfcd7f5a1f0f2836db2", kill_on_drop: false }`
[INFO] [stdout] cf966b1519a5f895f7d67d7d7f7bca43335521de73d7bbfcd7f5a1f0f2836db2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a3018dacf65c171217b1108501fa143d51bd132c841c9b0e3ffd2ebe23bb01c
[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" "9a3018dacf65c171217b1108501fa143d51bd132c841c9b0e3ffd2ebe23bb01c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling linereader v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "9a3018dacf65c171217b1108501fa143d51bd132c841c9b0e3ffd2ebe23bb01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a3018dacf65c171217b1108501fa143d51bd132c841c9b0e3ffd2ebe23bb01c", kill_on_drop: false }`
[INFO] [stdout] 9a3018dacf65c171217b1108501fa143d51bd132c841c9b0e3ffd2ebe23bb01c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--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] 63497b01e76b844f563f97a2ee0b27334d923bbba0d58a2b16b081c04ff47e25
[INFO] running `Command { std: "docker" "start" "-a" "63497b01e76b844f563f97a2ee0b27334d923bbba0d58a2b16b081c04ff47e25", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling linereader v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.43s
[INFO] running `Command { std: "docker" "inspect" "63497b01e76b844f563f97a2ee0b27334d923bbba0d58a2b16b081c04ff47e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63497b01e76b844f563f97a2ee0b27334d923bbba0d58a2b16b081c04ff47e25", kill_on_drop: false }`
[INFO] [stdout] 63497b01e76b844f563f97a2ee0b27334d923bbba0d58a2b16b081c04ff47e25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a483a81aa5bbe2e464f4207107bf4bd746f09c79481c40699ae6e5cb517779bf
[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" "a483a81aa5bbe2e464f4207107bf4bd746f09c79481c40699ae6e5cb517779bf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/linereader-b101ab66c80323b0
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_next_batch ... ok
[INFO] [stdout] test tests::test_next_line ... ok
[INFO] [stdout] test tests::test_for_each ... ok
[INFO] [stdout] test tests::test_next_line_randomly ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests linereader
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - LineReader<R>::with_delimiter (line 87) ... ok
[INFO] [stdout] test src/lib.rs - LineReader<R>::with_delimiter_and_capacity (line 103) ... ok
[INFO] [stdout] test src/lib.rs - LineReader<R>::new (line 55) ... ok
[INFO] [stdout] test src/lib.rs - LineReader<R>::with_capacity (line 71) ... ok
[INFO] [stdout] test src/lib.rs - LineReader<R>::for_each (line 127) ... ok
[INFO] [stdout] test src/lib.rs - LineReader<R>::next_batch (line 204) ... ok
[INFO] [stdout] test src/lib.rs - LineReader<R>::next_line (line 160) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a483a81aa5bbe2e464f4207107bf4bd746f09c79481c40699ae6e5cb517779bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a483a81aa5bbe2e464f4207107bf4bd746f09c79481c40699ae6e5cb517779bf", kill_on_drop: false }`
[INFO] [stdout] a483a81aa5bbe2e464f4207107bf4bd746f09c79481c40699ae6e5cb517779bf