[INFO] fetching crate rev_buf_reader 0.2.0...
[INFO] testing rev_buf_reader-0.2.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate rev_buf_reader 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rev_buf_reader 0.2.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d8cb2e927f8dd3f0a3a3908a8cef28137f1f9b24729bb2ea11c25c1be6de323
[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" "7d8cb2e927f8dd3f0a3a3908a8cef28137f1f9b24729bb2ea11c25c1be6de323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d8cb2e927f8dd3f0a3a3908a8cef28137f1f9b24729bb2ea11c25c1be6de323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8cb2e927f8dd3f0a3a3908a8cef28137f1f9b24729bb2ea11c25c1be6de323", kill_on_drop: false }`
[INFO] [stdout] 7d8cb2e927f8dd3f0a3a3908a8cef28137f1f9b24729bb2ea11c25c1be6de323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--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] 32f16059722218d847c51d5ba98111237e9248f740772ddd59faffc86d8204ec
[INFO] running `Command { std: "docker" "start" "-a" "32f16059722218d847c51d5ba98111237e9248f740772ddd59faffc86d8204ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling rev_buf_reader v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "32f16059722218d847c51d5ba98111237e9248f740772ddd59faffc86d8204ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32f16059722218d847c51d5ba98111237e9248f740772ddd59faffc86d8204ec", kill_on_drop: false }`
[INFO] [stdout] 32f16059722218d847c51d5ba98111237e9248f740772ddd59faffc86d8204ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] 6bd66d3bfe039acafacabbe306432ed87f2cde4bcc1808d89d0b61879b604231
[INFO] running `Command { std: "docker" "start" "-a" "6bd66d3bfe039acafacabbe306432ed87f2cde4bcc1808d89d0b61879b604231", 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 1.56s
[INFO] running `Command { std: "docker" "inspect" "6bd66d3bfe039acafacabbe306432ed87f2cde4bcc1808d89d0b61879b604231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd66d3bfe039acafacabbe306432ed87f2cde4bcc1808d89d0b61879b604231", kill_on_drop: false }`
[INFO] [stdout] 6bd66d3bfe039acafacabbe306432ed87f2cde4bcc1808d89d0b61879b604231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31e642c021b18cb07190fc911f7968b9306a6c88604cb638cf654a05c06ab81b
[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" "31e642c021b18cb07190fc911f7968b9306a6c88604cb638cf654a05c06ab81b", 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-1e4d4844b4a85438)
[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] [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] test tests::test_lines ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_underflow ... ok
[INFO] [stdout] test tests::test_read_line ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek_relative ... ok
[INFO] [stdout] test tests::test_read_until ... ok
[INFO] [stdout] test tests::test_buffered_reader_seek ... 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] [stderr]    Doc-tests rev_buf_reader
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::get_mut (line 310) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::new (line 203) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::buffer (line 332) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader (line 175) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::into_inner (line 359) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::get_ref (line 288) - compile ... ok
[INFO] [stdout] test src/lib.rs - RevBufReader<R>::with_capacity (line 223) - 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. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31e642c021b18cb07190fc911f7968b9306a6c88604cb638cf654a05c06ab81b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31e642c021b18cb07190fc911f7968b9306a6c88604cb638cf654a05c06ab81b", kill_on_drop: false }`
[INFO] [stdout] 31e642c021b18cb07190fc911f7968b9306a6c88604cb638cf654a05c06ab81b