[INFO] fetching crate buf_read_write 0.5.0...
[INFO] testing buf_read_write-0.5.0 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate buf_read_write 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate buf_read_write 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate buf_read_write 0.5.0
[INFO] tweaked toml for crates.io crate buf_read_write 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate buf_read_write 0.5.0 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate buf_read_write 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mutants v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e95efc9dc1b1cc255b29416b24b16ca0503b3a39ecaee6ff845b7b5015fe6ff7
[INFO] running `Command { std: "docker" "start" "-a" "e95efc9dc1b1cc255b29416b24b16ca0503b3a39ecaee6ff845b7b5015fe6ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e95efc9dc1b1cc255b29416b24b16ca0503b3a39ecaee6ff845b7b5015fe6ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e95efc9dc1b1cc255b29416b24b16ca0503b3a39ecaee6ff845b7b5015fe6ff7", kill_on_drop: false }`
[INFO] [stdout] e95efc9dc1b1cc255b29416b24b16ca0503b3a39ecaee6ff845b7b5015fe6ff7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfd5c4081bbaaf6a494de084a48b490f89e45af87d12584995a572d8692898f4
[INFO] running `Command { std: "docker" "start" "-a" "bfd5c4081bbaaf6a494de084a48b490f89e45af87d12584995a572d8692898f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf_read_write v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "bfd5c4081bbaaf6a494de084a48b490f89e45af87d12584995a572d8692898f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd5c4081bbaaf6a494de084a48b490f89e45af87d12584995a572d8692898f4", kill_on_drop: false }`
[INFO] [stdout] bfd5c4081bbaaf6a494de084a48b490f89e45af87d12584995a572d8692898f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aec557ca75c2a6b5026caa9207fee498935010644bb01849596536750147e858
[INFO] running `Command { std: "docker" "start" "-a" "aec557ca75c2a6b5026caa9207fee498935010644bb01849596536750147e858", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling buf_read_write v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] running `Command { std: "docker" "inspect" "aec557ca75c2a6b5026caa9207fee498935010644bb01849596536750147e858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec557ca75c2a6b5026caa9207fee498935010644bb01849596536750147e858", kill_on_drop: false }`
[INFO] [stdout] aec557ca75c2a6b5026caa9207fee498935010644bb01849596536750147e858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43f4f50933af1ea11fb71ce96bd134ccfc2e050ed5a6586facffd72ba832f3f9
[INFO] running `Command { std: "docker" "start" "-a" "43f4f50933af1ea11fb71ce96bd134ccfc2e050ed5a6586facffd72ba832f3f9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/buf_read_write-bc25f29c8d6a0760)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test tests::big_read_followed_by_small_write_doesnt_write_everything ... ok
[INFO] [stdout] test tests::can_seek_far_beyond_end ... ok
[INFO] [stdout] test tests::drop_implies_flush ... ok
[INFO] [stdout] test tests::reading_does_not_cause_writes ... ok
[INFO] [stdout] test tests::reads_are_buffered ... ok
[INFO] [stdout] test tests::can_write_beyond_end ... ok
[INFO] [stdout] test tests::stream_position_is_reloaded ... ok
[INFO] [stdout] test tests::test_dirty_buffer_beyond_u64_max ... ok
[INFO] [stdout] test tests::can_seek_and_write_just_beyond_end ... ok
[INFO] [stdout] test tests::seek_plus_read_will_still_use_buffer ... ok
[INFO] [stdout] test tests::writes_are_buffered ... ok
[INFO] [stdout] test tests::test_extreme_size_handling ... ok
[INFO] [stdout] test tests::writes_are_buffered_after_seek ... ok
[INFO] [stdout] test tests::exhaustive_regress ... ok
[INFO] [stdout] test tests::regression ... ok
[INFO] [stdout] test tests::exhaustive ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/buf_read_write-bc25f29c8d6a0760` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "43f4f50933af1ea11fb71ce96bd134ccfc2e050ed5a6586facffd72ba832f3f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43f4f50933af1ea11fb71ce96bd134ccfc2e050ed5a6586facffd72ba832f3f9", kill_on_drop: false }`
[INFO] [stdout] 43f4f50933af1ea11fb71ce96bd134ccfc2e050ed5a6586facffd72ba832f3f9
