[INFO] fetching crate rev_buf_reader 0.2.0...
[INFO] testing rev_buf_reader-0.2.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate rev_buf_reader 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rev_buf_reader 0.2.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rev_buf_reader 0.2.0
[INFO] finished tweaking crates.io crate rev_buf_reader 0.2.0
[INFO] tweaked toml for crates.io crate rev_buf_reader 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe0fcb1643b5f55b2e9828d8d252f10c173be6da2174c78e2c271339539d3ffe
[INFO] running `Command { std: "docker" "start" "-a" "fe0fcb1643b5f55b2e9828d8d252f10c173be6da2174c78e2c271339539d3ffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe0fcb1643b5f55b2e9828d8d252f10c173be6da2174c78e2c271339539d3ffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe0fcb1643b5f55b2e9828d8d252f10c173be6da2174c78e2c271339539d3ffe", kill_on_drop: false }`
[INFO] [stdout] fe0fcb1643b5f55b2e9828d8d252f10c173be6da2174c78e2c271339539d3ffe
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a124c0b47d98ab67fb92bcbfb88165d71e34b365ab1ec42969a1cb171718002c
[INFO] running `Command { std: "docker" "start" "-a" "a124c0b47d98ab67fb92bcbfb88165d71e34b365ab1ec42969a1cb171718002c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling rev_buf_reader v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "a124c0b47d98ab67fb92bcbfb88165d71e34b365ab1ec42969a1cb171718002c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a124c0b47d98ab67fb92bcbfb88165d71e34b365ab1ec42969a1cb171718002c", kill_on_drop: false }`
[INFO] [stdout] a124c0b47d98ab67fb92bcbfb88165d71e34b365ab1ec42969a1cb171718002c
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d26d4fe7eb0e22fe5b3dde37040f18cf6dcb67fa8d2aa4514106e94c8d18be37
[INFO] running `Command { std: "docker" "start" "-a" "d26d4fe7eb0e22fe5b3dde37040f18cf6dcb67fa8d2aa4514106e94c8d18be37", kill_on_drop: false }`
[INFO] [stderr]    Compiling rev_buf_reader v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "d26d4fe7eb0e22fe5b3dde37040f18cf6dcb67fa8d2aa4514106e94c8d18be37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d26d4fe7eb0e22fe5b3dde37040f18cf6dcb67fa8d2aa4514106e94c8d18be37", kill_on_drop: false }`
[INFO] [stdout] d26d4fe7eb0e22fe5b3dde37040f18cf6dcb67fa8d2aa4514106e94c8d18be37
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cfb9d378ed50341c1e8f4194c158cd09832689e80c5f1f017c1c2299778ff62f
[INFO] running `Command { std: "docker" "start" "-a" "cfb9d378ed50341c1e8f4194c158cd09832689e80c5f1f017c1c2299778ff62f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rev_buf_reader-994361a7418661b5)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::test_buffered_reader ... ok
[INFO] [stdout] test tests::test_buffered_reader_invalidated_after_read ... ok
[INFO] [stderr]    Doc-tests rev_buf_reader
[INFO] [stdout] test tests::test_buffered_reader_seek_relative ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek ... ok
[INFO] [stdout] test tests::test_read_line ... ok
[INFO] [stdout] test tests::test_read_until ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_underflow ... ok
[INFO] [stdout] test tests::test_lines ... ok
[INFO] [stdout] test tests::test_buffered_reader_invalidated_after_seek ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_underflow_discard_buffer_between_seeks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::into_inner (line 359) ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::with_capacity (line 223) ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::get_ref (line 288) ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::new (line 203) ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::buffer (line 332) ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader (line 175) ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::get_mut (line 310) ... 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. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cfb9d378ed50341c1e8f4194c158cd09832689e80c5f1f017c1c2299778ff62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb9d378ed50341c1e8f4194c158cd09832689e80c5f1f017c1c2299778ff62f", kill_on_drop: false }`
[INFO] [stdout] cfb9d378ed50341c1e8f4194c158cd09832689e80c5f1f017c1c2299778ff62f