[INFO] cloning repository https://github.com/yuzu441/nlp100-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuzu441/nlp100-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuzu441%2Fnlp100-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuzu441%2Fnlp100-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61b2ac3d4be5538dfb4980f6dbfef826fd4d0677
[INFO] checking yuzu441/nlp100-rust against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuzu441%2Fnlp100-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuzu441/nlp100-rust on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuzu441/nlp100-rust
[INFO] finished tweaking git repo https://github.com/yuzu441/nlp100-rust
[INFO] tweaked toml for git repo https://github.com/yuzu441/nlp100-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yuzu441/nlp100-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 743cf12257d8b8b9a1821c920e1d28686b7ce3d9190ba17d1a7ca51519da8432
[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" "743cf12257d8b8b9a1821c920e1d28686b7ce3d9190ba17d1a7ca51519da8432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "743cf12257d8b8b9a1821c920e1d28686b7ce3d9190ba17d1a7ca51519da8432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743cf12257d8b8b9a1821c920e1d28686b7ce3d9190ba17d1a7ca51519da8432", kill_on_drop: false }`
[INFO] [stdout] 743cf12257d8b8b9a1821c920e1d28686b7ce3d9190ba17d1a7ca51519da8432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fdd5b19f3282a8e90e54642b6023eba547b6b76a817919b466c4ba54adf8caa
[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" "4fdd5b19f3282a8e90e54642b6023eba547b6b76a817919b466c4ba54adf8caa", kill_on_drop: false }`
[INFO] [stderr]     Checking nlp v0.1.0 (/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/chapter01.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .map(|word| word.trim_right_matches(pat))
[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: use of deprecated associated function `core::str::<impl str>::slice_unchecked`: use `get_unchecked(begin..end)` instead
[INFO] [stdout]   --> src/chapter01.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 true => w.slice_unchecked(0, 1),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::slice_unchecked`: use `get_unchecked(begin..end)` instead
[INFO] [stdout]   --> src/chapter01.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 false => w.slice_unchecked(0, 2)
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^
[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/chapter01.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .map(|word| word.trim_right_matches(pat))
[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: use of deprecated associated function `core::str::<impl str>::slice_unchecked`: use `get_unchecked(begin..end)` instead
[INFO] [stdout]   --> src/chapter01.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 true => w.slice_unchecked(0, 1),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::slice_unchecked`: use `get_unchecked(begin..end)` instead
[INFO] [stdout]   --> src/chapter01.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 false => w.slice_unchecked(0, 2)
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "4fdd5b19f3282a8e90e54642b6023eba547b6b76a817919b466c4ba54adf8caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fdd5b19f3282a8e90e54642b6023eba547b6b76a817919b466c4ba54adf8caa", kill_on_drop: false }`
[INFO] [stdout] 4fdd5b19f3282a8e90e54642b6023eba547b6b76a817919b466c4ba54adf8caa