[INFO] fetching crate io_operations 0.2.0...
[INFO] testing io_operations-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate io_operations 0.2.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate io_operations 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io_operations 0.2.0
[INFO] finished tweaking crates.io crate io_operations 0.2.0
[INFO] tweaked toml for crates.io crate io_operations 0.2.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94f44ca81d6f9b259dece77b2b94b5ce89493344aca882ec52f96d19a1bd1531
[INFO] running `Command { std: "docker" "start" "-a" "94f44ca81d6f9b259dece77b2b94b5ce89493344aca882ec52f96d19a1bd1531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94f44ca81d6f9b259dece77b2b94b5ce89493344aca882ec52f96d19a1bd1531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f44ca81d6f9b259dece77b2b94b5ce89493344aca882ec52f96d19a1bd1531", kill_on_drop: false }`
[INFO] [stdout] 94f44ca81d6f9b259dece77b2b94b5ce89493344aca882ec52f96d19a1bd1531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92b5cf3bb0f115f85c8d4bf545e674d347f5d3bea6b677676f4f44ee7a919642
[INFO] running `Command { std: "docker" "start" "-a" "92b5cf3bb0f115f85c8d4bf545e674d347f5d3bea6b677676f4f44ee7a919642", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling io_operations v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "92b5cf3bb0f115f85c8d4bf545e674d347f5d3bea6b677676f4f44ee7a919642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92b5cf3bb0f115f85c8d4bf545e674d347f5d3bea6b677676f4f44ee7a919642", kill_on_drop: false }`
[INFO] [stdout] 92b5cf3bb0f115f85c8d4bf545e674d347f5d3bea6b677676f4f44ee7a919642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72ef9ec7db9c0413cb3d665e5418ecd41db76e4207cd430213e0bfeaf36e2a49
[INFO] running `Command { std: "docker" "start" "-a" "72ef9ec7db9c0413cb3d665e5418ecd41db76e4207cd430213e0bfeaf36e2a49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling io_operations v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "72ef9ec7db9c0413cb3d665e5418ecd41db76e4207cd430213e0bfeaf36e2a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72ef9ec7db9c0413cb3d665e5418ecd41db76e4207cd430213e0bfeaf36e2a49", kill_on_drop: false }`
[INFO] [stdout] 72ef9ec7db9c0413cb3d665e5418ecd41db76e4207cd430213e0bfeaf36e2a49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 296d9655fc243c18d9338deb9d224f83094ca63a2e602cd919a15f8541543799
[INFO] running `Command { std: "docker" "start" "-a" "296d9655fc243c18d9338deb9d224f83094ca63a2e602cd919a15f8541543799", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stdout] running 28 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_operations-530fcc3d947e3773)
[INFO] [stdout] test reader::tests::test_read_empty_be_i16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_i32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_i64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_u32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_u16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_be_u64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_i8 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_i16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_i64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_u16 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_i32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_u32 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_le_u64 ... ok
[INFO] [stdout] test reader::tests::test_read_empty_u8 ... ok
[INFO] [stdout] test test::test_read_write_be_i16 ... ok
[INFO] [stdout] test test::test_read_write_be_i32 ... ok
[INFO] [stdout] test test::test_read_write_be_i64 ... ok
[INFO] [stdout] test test::test_read_write_be_u16 ... ok
[INFO] [stdout] test test::test_read_write_be_u64 ... ok
[INFO] [stdout] test test::test_read_write_be_u32 ... ok
[INFO] [stdout] test test::test_read_write_i8 ... ok
[INFO] [stdout] test test::test_read_write_le_i16 ... ok
[INFO] [stdout] test test::test_read_write_le_i32 ... ok
[INFO] [stdout] test test::test_read_write_le_i64 ... ok
[INFO] [stdout] test test::test_read_write_le_u16 ... ok
[INFO] [stdout] test test::test_read_write_le_u32 ... ok
[INFO] [stdout] test test::test_read_write_le_u64 ... ok
[INFO] [stdout] test test::test_read_write_u8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io_operations
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "296d9655fc243c18d9338deb9d224f83094ca63a2e602cd919a15f8541543799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296d9655fc243c18d9338deb9d224f83094ca63a2e602cd919a15f8541543799", kill_on_drop: false }`
[INFO] [stdout] 296d9655fc243c18d9338deb9d224f83094ca63a2e602cd919a15f8541543799