[INFO] fetching crate modbus_buffer 0.0.2...
[INFO] testing modbus_buffer-0.0.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate modbus_buffer 0.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate modbus_buffer 0.0.2
[INFO] finished tweaking crates.io crate modbus_buffer 0.0.2
[INFO] tweaked toml for crates.io crate modbus_buffer 0.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate modbus_buffer 0.0.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4285ffe2708b930e10328c1febc967a26ab38909ce0c89ca1dfb15a73826f9e
[INFO] running `Command { std: "docker" "start" "-a" "b4285ffe2708b930e10328c1febc967a26ab38909ce0c89ca1dfb15a73826f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4285ffe2708b930e10328c1febc967a26ab38909ce0c89ca1dfb15a73826f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4285ffe2708b930e10328c1febc967a26ab38909ce0c89ca1dfb15a73826f9e", kill_on_drop: false }`
[INFO] [stdout] b4285ffe2708b930e10328c1febc967a26ab38909ce0c89ca1dfb15a73826f9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b5a3847cb900a2dbdbf9c9ee42e248810c93404a69acc67e4a9d91d967c71fd
[INFO] running `Command { std: "docker" "start" "-a" "2b5a3847cb900a2dbdbf9c9ee42e248810c93404a69acc67e4a9d91d967c71fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling modbus_buffer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             ///  println! is std, not available w/ `#![no_std]` flag
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |             let len_to_remove = tail + 2 ;
[INFO] [stdout]     |             ------------------------------ rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "2b5a3847cb900a2dbdbf9c9ee42e248810c93404a69acc67e4a9d91d967c71fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5a3847cb900a2dbdbf9c9ee42e248810c93404a69acc67e4a9d91d967c71fd", kill_on_drop: false }`
[INFO] [stdout] 2b5a3847cb900a2dbdbf9c9ee42e248810c93404a69acc67e4a9d91d967c71fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f4865f183c60e724700e66f9afb511aa04c06d078aaef0baf2252817f5cd7f3
[INFO] running `Command { std: "docker" "start" "-a" "6f4865f183c60e724700e66f9afb511aa04c06d078aaef0baf2252817f5cd7f3", kill_on_drop: false }`
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             ///  println! is std, not available w/ `#![no_std]` flag
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |             let len_to_remove = tail + 2 ;
[INFO] [stdout]     |             ------------------------------ rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling modbus_buffer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             ///  println! is std, not available w/ `#![no_std]` flag
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |             let len_to_remove = tail + 2 ;
[INFO] [stdout]     |             ------------------------------ rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "6f4865f183c60e724700e66f9afb511aa04c06d078aaef0baf2252817f5cd7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4865f183c60e724700e66f9afb511aa04c06d078aaef0baf2252817f5cd7f3", kill_on_drop: false }`
[INFO] [stdout] 6f4865f183c60e724700e66f9afb511aa04c06d078aaef0baf2252817f5cd7f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8900c2477125967cf102eca084e2a21aba0576518174daeba43a86225b062fc2
[INFO] running `Command { std: "docker" "start" "-a" "8900c2477125967cf102eca084e2a21aba0576518174daeba43a86225b062fc2", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/lib.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             ///  println! is std, not available w/ `#![no_std]` flag
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 221 |             let len_to_remove = tail + 2 ;
[INFO] [stderr]     |             ------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `modbus_buffer` (lib) generated 1 warning
[INFO] [stderr] warning: `modbus_buffer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/modbus_buffer-0794274354a281ac)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::buffer_empty ... ok
[INFO] [stdout] test tests::test_data_remain_on_tail_with_overlap ... ok
[INFO] [stdout] test tests::test_overflow_should_not_panic ... ok
[INFO] [stdout] test tests::test_receive_multiple_request ... ok
[INFO] [stdout] test tests::test_data_remain_on_tail ... ok
[INFO] [stdout] test tests::test_noise_on_head ... ok
[INFO] [stdout] test tests::test_receive_request ... ok
[INFO] [stdout] test tests::test_overflow_should_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests modbus_buffer
[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" "8900c2477125967cf102eca084e2a21aba0576518174daeba43a86225b062fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8900c2477125967cf102eca084e2a21aba0576518174daeba43a86225b062fc2", kill_on_drop: false }`
[INFO] [stdout] 8900c2477125967cf102eca084e2a21aba0576518174daeba43a86225b062fc2