[INFO] fetching crate rc_bytes 0.1.1...
[INFO] testing rc_bytes-0.1.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate rc_bytes 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rc_bytes 0.1.1
[INFO] finished tweaking crates.io crate rc_bytes 0.1.1
[INFO] tweaked toml for crates.io crate rc_bytes 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rc_bytes 0.1.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rc_bytes 0.1.1 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7ed80492705c6ff6d07f72adb963f6c070dfe01ee7710d7a54ed3b23a14e90e
[INFO] running `Command { std: "docker" "start" "-a" "f7ed80492705c6ff6d07f72adb963f6c070dfe01ee7710d7a54ed3b23a14e90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7ed80492705c6ff6d07f72adb963f6c070dfe01ee7710d7a54ed3b23a14e90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ed80492705c6ff6d07f72adb963f6c070dfe01ee7710d7a54ed3b23a14e90e", kill_on_drop: false }`
[INFO] [stdout] f7ed80492705c6ff6d07f72adb963f6c070dfe01ee7710d7a54ed3b23a14e90e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc7a672d9ad64d74e2d2da1b43b30b6ee415560e1f8fbe65d235804d7f303e35
[INFO] running `Command { std: "docker" "start" "-a" "fc7a672d9ad64d74e2d2da1b43b30b6ee415560e1f8fbe65d235804d7f303e35", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_bytes v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "fc7a672d9ad64d74e2d2da1b43b30b6ee415560e1f8fbe65d235804d7f303e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc7a672d9ad64d74e2d2da1b43b30b6ee415560e1f8fbe65d235804d7f303e35", kill_on_drop: false }`
[INFO] [stdout] fc7a672d9ad64d74e2d2da1b43b30b6ee415560e1f8fbe65d235804d7f303e35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e033df0c3d52f6586898e8aae425c0c3ece323561d6ef24f76872ab03032715
[INFO] running `Command { std: "docker" "start" "-a" "0e033df0c3d52f6586898e8aae425c0c3ece323561d6ef24f76872ab03032715", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_bytes v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `u16be`
[INFO] [stdout]   --> src/lib.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let u16be = u16.to_be_bytes();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_u16be`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i16le`
[INFO] [stdout]   --> src/lib.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let i16le = i16.to_le_bytes();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_i16le`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i16be`
[INFO] [stdout]   --> src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let i16be = i16.to_be_bytes();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_i16be`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "0e033df0c3d52f6586898e8aae425c0c3ece323561d6ef24f76872ab03032715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e033df0c3d52f6586898e8aae425c0c3ece323561d6ef24f76872ab03032715", kill_on_drop: false }`
[INFO] [stdout] 0e033df0c3d52f6586898e8aae425c0c3ece323561d6ef24f76872ab03032715
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84936b0ff13ef3b47c9d8cbe8d7c7a9f3ac1b14b221b2cc3d1dfd2a008fae670
[INFO] running `Command { std: "docker" "start" "-a" "84936b0ff13ef3b47c9d8cbe8d7c7a9f3ac1b14b221b2cc3d1dfd2a008fae670", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `u16be`
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:33:13
[INFO] [stdout] running 3 tests
[INFO] [stderr]    |
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr] 33 |         let u16be = u16.to_be_bytes();
[INFO] [stdout] test tests::test_byte_reader ... ok
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_u16be`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i16le`
[INFO] [stderr]   --> src/lib.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let i16le = i16.to_le_bytes();
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_i16le`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i16be`
[INFO] [stderr]   --> src/lib.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let i16be = i16.to_be_bytes();
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_i16be`
[INFO] [stderr] 
[INFO] [stderr] warning: `rc_bytes` (lib test) generated 3 warnings (run `cargo fix --lib -p rc_bytes --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rc_bytes-9f7a0fdc3d3668ba)
[INFO] [stderr]    Doc-tests rc_bytes
[INFO] [stdout] test tests::test_byte_writer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "84936b0ff13ef3b47c9d8cbe8d7c7a9f3ac1b14b221b2cc3d1dfd2a008fae670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84936b0ff13ef3b47c9d8cbe8d7c7a9f3ac1b14b221b2cc3d1dfd2a008fae670", kill_on_drop: false }`
[INFO] [stdout] 84936b0ff13ef3b47c9d8cbe8d7c7a9f3ac1b14b221b2cc3d1dfd2a008fae670