[INFO] fetching crate rev_buf_reader 0.3.0...
[INFO] testing rev_buf_reader-0.3.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate rev_buf_reader 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rev_buf_reader 0.3.0
[INFO] finished tweaking crates.io crate rev_buf_reader 0.3.0
[INFO] tweaked toml for crates.io crate rev_buf_reader 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rev_buf_reader 0.3.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a03671ec294a9f39cfb6f0278c40c1810bf9435e90971d4090d411df91387147
[INFO] running `Command { std: "docker" "start" "-a" "a03671ec294a9f39cfb6f0278c40c1810bf9435e90971d4090d411df91387147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a03671ec294a9f39cfb6f0278c40c1810bf9435e90971d4090d411df91387147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03671ec294a9f39cfb6f0278c40c1810bf9435e90971d4090d411df91387147", kill_on_drop: false }`
[INFO] [stdout] a03671ec294a9f39cfb6f0278c40c1810bf9435e90971d4090d411df91387147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f7f6e400eb5da2e988ca222e3293d954601a25a5a942586f6890b76216165c8
[INFO] running `Command { std: "docker" "start" "-a" "2f7f6e400eb5da2e988ca222e3293d954601a25a5a942586f6890b76216165c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rev_buf_reader v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "2f7f6e400eb5da2e988ca222e3293d954601a25a5a942586f6890b76216165c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7f6e400eb5da2e988ca222e3293d954601a25a5a942586f6890b76216165c8", kill_on_drop: false }`
[INFO] [stdout] 2f7f6e400eb5da2e988ca222e3293d954601a25a5a942586f6890b76216165c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe5f8a9301e48489c93006a98f02082bdafade396111c1dc91940fca7c9599c6
[INFO] running `Command { std: "docker" "start" "-a" "fe5f8a9301e48489c93006a98f02082bdafade396111c1dc91940fca7c9599c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rev_buf_reader v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "fe5f8a9301e48489c93006a98f02082bdafade396111c1dc91940fca7c9599c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5f8a9301e48489c93006a98f02082bdafade396111c1dc91940fca7c9599c6", kill_on_drop: false }`
[INFO] [stdout] fe5f8a9301e48489c93006a98f02082bdafade396111c1dc91940fca7c9599c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4fc3df3b2b0cd926932e9e4f3bd58a7ee331d4210fb95562c070a3bee5311db4
[INFO] running `Command { std: "docker" "start" "-a" "4fc3df3b2b0cd926932e9e4f3bd58a7ee331d4210fb95562c070a3bee5311db4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rev_buf_reader-a194dd2f2aed9219)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stderr]    Doc-tests rev_buf_reader
[INFO] [stdout] test tests::test_buffered_reader ... ok
[INFO] [stdout] test tests::test_buffered_reader_invalidated_after_seek ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek ... ok
[INFO] [stdout] test tests::test_buffered_reader_invalidated_after_read ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_underflow ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_relative ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_underflow_discard_buffer_between_seeks ... ok
[INFO] [stdout] test tests::test_lines ... ok
[INFO] [stdout] test tests::test_read_line ... ok
[INFO] [stdout] test tests::test_read_until ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::new (line 115) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::with_capacity (line 135) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::get_ref (line 200) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::buffer (line 246) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::into_inner (line 297) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::get_mut (line 222) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::capacity (line 270) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader (line 87) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4fc3df3b2b0cd926932e9e4f3bd58a7ee331d4210fb95562c070a3bee5311db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc3df3b2b0cd926932e9e4f3bd58a7ee331d4210fb95562c070a3bee5311db4", kill_on_drop: false }`
[INFO] [stdout] 4fc3df3b2b0cd926932e9e4f3bd58a7ee331d4210fb95562c070a3bee5311db4