[INFO] fetching crate slicer 0.1.1...
[INFO] testing slicer-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate slicer 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate slicer 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slicer 0.1.1
[INFO] finished tweaking crates.io crate slicer 0.1.1
[INFO] tweaked toml for crates.io crate slicer 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00689814a3416182464cdc9d98a17131e10d8474d4a6f0a9ad2384b7f603a11d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00689814a3416182464cdc9d98a17131e10d8474d4a6f0a9ad2384b7f603a11d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00689814a3416182464cdc9d98a17131e10d8474d4a6f0a9ad2384b7f603a11d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00689814a3416182464cdc9d98a17131e10d8474d4a6f0a9ad2384b7f603a11d", kill_on_drop: false }`
[INFO] [stdout] 00689814a3416182464cdc9d98a17131e10d8474d4a6f0a9ad2384b7f603a11d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edf538a6407b87658036efd30961e5d7f01d1db6658b064944db43e722b5aa01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "edf538a6407b87658036efd30961e5d7f01d1db6658b064944db43e722b5aa01", kill_on_drop: false }`
[INFO] [stderr]    Compiling slicer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/lib.rs:744:18
[INFO] [stdout]     |
[INFO] [stdout] 744 |             line.trim_right_matches(|char: char| char == '\n' || char == '\r')
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "edf538a6407b87658036efd30961e5d7f01d1db6658b064944db43e722b5aa01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edf538a6407b87658036efd30961e5d7f01d1db6658b064944db43e722b5aa01", kill_on_drop: false }`
[INFO] [stdout] edf538a6407b87658036efd30961e5d7f01d1db6658b064944db43e722b5aa01
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b603a66f205519638bcf9cf701623d0c64d9215e9d560974541bc571ad94947
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6b603a66f205519638bcf9cf701623d0c64d9215e9d560974541bc571ad94947", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/lib.rs:744:18
[INFO] [stdout]     |
[INFO] [stdout] 744 |             line.trim_right_matches(|char: char| char == '\n' || char == '\r')
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slicer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/lib.rs:744:18
[INFO] [stdout]     |
[INFO] [stdout] 744 |             line.trim_right_matches(|char: char| char == '\n' || char == '\r')
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "6b603a66f205519638bcf9cf701623d0c64d9215e9d560974541bc571ad94947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b603a66f205519638bcf9cf701623d0c64d9215e9d560974541bc571ad94947", kill_on_drop: false }`
[INFO] [stdout] 6b603a66f205519638bcf9cf701623d0c64d9215e9d560974541bc571ad94947
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 445198972decb5160246217a46eaa50b41b6116733faf2ab0bfecdb8d8c3703e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "445198972decb5160246217a46eaa50b41b6116733faf2ab0bfecdb8d8c3703e", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]    --> src/lib.rs:744:18
[INFO] [stderr]     |
[INFO] [stderr] 744 |             line.trim_right_matches(|char: char| char == '\n' || char == '\r')
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]    --> src/lib.rs:744:18
[INFO] [stderr]     |
[INFO] [stderr] 744 |             line.trim_right_matches(|char: char| char == '\n' || char == '\r')
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slicer-465c0178abd0eded
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slicer
[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] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test src/lib.rs - StrSlicer::jump_to (line 372) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::new (line 231) ... ok
[INFO] [stdout] test src/lib.rs - AsSlicer::as_slicer (line 33) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::is_at_end (line 788) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::byte_pos (line 344) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::as_str (line 304) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::jump_to (line 363) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_line (line 716) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::is_next (line 497) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_over (line 512) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_non_whitespace (line 676) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_num_chars (line 457) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::cut_off (line 322) ... ok
[INFO] [stdout] test src/lib.rs - AsSlicer::as_slicer_with_tracker (line 44) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_to_end (line 752) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_until (line 547) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_line (line 734) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_whitespace (line 636) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::tracker (line 411) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_to_end (line 768) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::tracker_mut (line 423) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_until (line 564) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::skip_until_after (line 586) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_num_chars (line 477) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_non_whitespace (line 699) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::tracker_pos (line 435) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_whitespace (line 656) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::with_tracker (line 252) ... ok
[INFO] [stdout] test src/lib.rs - StrSlicer::slice_until_after (line 610) ... ok
[INFO] [stdout] test src/lib.rs - trackers::LineTracker (line 872) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "445198972decb5160246217a46eaa50b41b6116733faf2ab0bfecdb8d8c3703e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "445198972decb5160246217a46eaa50b41b6116733faf2ab0bfecdb8d8c3703e", kill_on_drop: false }`
[INFO] [stdout] 445198972decb5160246217a46eaa50b41b6116733faf2ab0bfecdb8d8c3703e