[INFO] fetching crate limit_read 0.2.0...
[INFO] testing limit_read-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate limit_read 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate limit_read 0.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate limit_read 0.2.0
[INFO] finished tweaking crates.io crate limit_read 0.2.0
[INFO] tweaked toml for crates.io crate limit_read 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 441b7cabb45e40f4e50a8dd0ae9b3dd68f64765b866efa0a0347155db3eb9ca3
[INFO] running `Command { std: "docker" "start" "-a" "441b7cabb45e40f4e50a8dd0ae9b3dd68f64765b866efa0a0347155db3eb9ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441b7cabb45e40f4e50a8dd0ae9b3dd68f64765b866efa0a0347155db3eb9ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441b7cabb45e40f4e50a8dd0ae9b3dd68f64765b866efa0a0347155db3eb9ca3", kill_on_drop: false }`
[INFO] [stdout] 441b7cabb45e40f4e50a8dd0ae9b3dd68f64765b866efa0a0347155db3eb9ca3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d73efbd64dade83ba6c5a9876db4df526b775c2d7a1b8303e4bcd5c4b49a9bef
[INFO] running `Command { std: "docker" "start" "-a" "d73efbd64dade83ba6c5a9876db4df526b775c2d7a1b8303e4bcd5c4b49a9bef", kill_on_drop: false }`
[INFO] [stderr]    Compiling limit_read v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d73efbd64dade83ba6c5a9876db4df526b775c2d7a1b8303e4bcd5c4b49a9bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73efbd64dade83ba6c5a9876db4df526b775c2d7a1b8303e4bcd5c4b49a9bef", kill_on_drop: false }`
[INFO] [stdout] d73efbd64dade83ba6c5a9876db4df526b775c2d7a1b8303e4bcd5c4b49a9bef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c35e412a21df4f05d08f80e6cbedd22b16dde29508008a8fe842bd742a4a762b
[INFO] running `Command { std: "docker" "start" "-a" "c35e412a21df4f05d08f80e6cbedd22b16dde29508008a8fe842bd742a4a762b", kill_on_drop: false }`
[INFO] [stderr]    Compiling limit_read v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Result::<T, E>::is_err` that must be used
[INFO] [stdout]    --> src/lib.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 | /     buf_reader
[INFO] [stdout] 195 | |       .read_until_lim(';' as u8, &mut buf, &short_lim)
[INFO] [stdout] 196 | |       .is_err();
[INFO] [stdout]     | |________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Result::<T, E>::is_err` that must be used
[INFO] [stdout]    --> src/lib.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     buf_reader.read_line_lim(&mut buf, &short_lim).is_err();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "c35e412a21df4f05d08f80e6cbedd22b16dde29508008a8fe842bd742a4a762b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35e412a21df4f05d08f80e6cbedd22b16dde29508008a8fe842bd742a4a762b", kill_on_drop: false }`
[INFO] [stdout] c35e412a21df4f05d08f80e6cbedd22b16dde29508008a8fe842bd742a4a762b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3cc93b6353416b10c257bbcd3d605ede6cf1bdb33bc5fea4b2c98e247d1b0aff
[INFO] running `Command { std: "docker" "start" "-a" "3cc93b6353416b10c257bbcd3d605ede6cf1bdb33bc5fea4b2c98e247d1b0aff", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Result::<T, E>::is_err` that must be used
[INFO] [stderr]    --> src/lib.rs:194:5
[INFO] [stderr]     |
[INFO] [stderr] 194 | /     buf_reader
[INFO] [stderr] 195 | |       .read_until_lim(';' as u8, &mut buf, &short_lim)
[INFO] [stderr] 196 | |       .is_err();
[INFO] [stderr]     | |________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Result::<T, E>::is_err` that must be used
[INFO] [stderr]    --> src/lib.rs:215:5
[INFO] [stderr]     |
[INFO] [stderr] 215 |     buf_reader.read_line_lim(&mut buf, &short_lim).is_err();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `limit_read` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/limit_read-9ed076c4bc787707)
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests limit_read
[INFO] [stdout] test tests::read_until_lim ... ok
[INFO] [stdout] test tests::read_line_lim ... ok
[INFO] [stdout] test tests::split_lim ... ok
[INFO] [stdout] test tests::lines_lim ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "3cc93b6353416b10c257bbcd3d605ede6cf1bdb33bc5fea4b2c98e247d1b0aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cc93b6353416b10c257bbcd3d605ede6cf1bdb33bc5fea4b2c98e247d1b0aff", kill_on_drop: false }`
[INFO] [stdout] 3cc93b6353416b10c257bbcd3d605ede6cf1bdb33bc5fea4b2c98e247d1b0aff
