[INFO] crate limit_read 0.2.0 is already in cache
[INFO] testing limit_read-0.2.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate limit_read 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate limit_read 0.2.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2d16e7b66d9085be306fa2d0c0ab487a7bf4943db3da47b7b416fd288163267a
[INFO] running `"docker" "start" "-a" "2d16e7b66d9085be306fa2d0c0ab487a7bf4943db3da47b7b416fd288163267a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling limit_read v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "2d16e7b66d9085be306fa2d0c0ab487a7bf4943db3da47b7b416fd288163267a"`
[INFO] running `"docker" "rm" "-f" "2d16e7b66d9085be306fa2d0c0ab487a7bf4943db3da47b7b416fd288163267a"`
[INFO] [stdout] 2d16e7b66d9085be306fa2d0c0ab487a7bf4943db3da47b7b416fd288163267a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d600f74f6b8fcd2ed7730c0f6cf05b371f80e31b34778561a7f619d3c92baca8
[INFO] running `"docker" "start" "-a" "d600f74f6b8fcd2ed7730c0f6cf05b371f80e31b34778561a7f619d3c92baca8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling limit_read v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::result::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 `std::result::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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "d600f74f6b8fcd2ed7730c0f6cf05b371f80e31b34778561a7f619d3c92baca8"`
[INFO] running `"docker" "rm" "-f" "d600f74f6b8fcd2ed7730c0f6cf05b371f80e31b34778561a7f619d3c92baca8"`
[INFO] [stdout] d600f74f6b8fcd2ed7730c0f6cf05b371f80e31b34778561a7f619d3c92baca8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8ba8c27103fe0b7a11cc67312bf9fbf7b984dce936f97164513040c4a4fe2b82
[INFO] running `"docker" "start" "-a" "8ba8c27103fe0b7a11cc67312bf9fbf7b984dce936f97164513040c4a4fe2b82"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused return value of `std::result::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 `std::result::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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/limit_read-c5c130689be2a7a9
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::split_lim ... ok
[INFO] [stdout] test tests::read_line_lim ... ok
[INFO] [stdout] test tests::lines_lim ... ok
[INFO] [stdout] test tests::read_until_lim ... ok
[INFO] [stderr]    Doc-tests limit_read
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8ba8c27103fe0b7a11cc67312bf9fbf7b984dce936f97164513040c4a4fe2b82"`
[INFO] running `"docker" "rm" "-f" "8ba8c27103fe0b7a11cc67312bf9fbf7b984dce936f97164513040c4a4fe2b82"`
[INFO] [stdout] 8ba8c27103fe0b7a11cc67312bf9fbf7b984dce936f97164513040c4a4fe2b82