[INFO] fetching crate maze_rs 1.0.0...
[INFO] checking maze_rs-1.0.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate maze_rs 1.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate maze_rs 1.0.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maze_rs 1.0.0
[INFO] finished tweaking crates.io crate maze_rs 1.0.0
[INFO] tweaked toml for crates.io crate maze_rs 1.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate maze_rs 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5d1cb31dd55d0b6eb0a8d69288852f6fed922d055b15833634355e621efe594
[INFO] running `Command { std: "docker" "start" "-a" "c5d1cb31dd55d0b6eb0a8d69288852f6fed922d055b15833634355e621efe594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5d1cb31dd55d0b6eb0a8d69288852f6fed922d055b15833634355e621efe594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d1cb31dd55d0b6eb0a8d69288852f6fed922d055b15833634355e621efe594", kill_on_drop: false }`
[INFO] [stdout] c5d1cb31dd55d0b6eb0a8d69288852f6fed922d055b15833634355e621efe594
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afe07c3ba83479378c528ef4051a69bfb0f38e31848cc6c2b345bbcf299e5545
[INFO] running `Command { std: "docker" "start" "-a" "afe07c3ba83479378c528ef4051a69bfb0f38e31848cc6c2b345bbcf299e5545", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking maze_rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `ds`
[INFO] [stdout]   --> src/helper/mod.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     use ds::Point;
[INFO] [stdout]    |         ^^ help: a similar path exists: `crate::ds`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maze_rs` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/error/mod.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `v`
[INFO] [stdout]    --> src/ds/graphs.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     v: usize,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "afe07c3ba83479378c528ef4051a69bfb0f38e31848cc6c2b345bbcf299e5545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afe07c3ba83479378c528ef4051a69bfb0f38e31848cc6c2b345bbcf299e5545", kill_on_drop: false }`
[INFO] [stdout] afe07c3ba83479378c528ef4051a69bfb0f38e31848cc6c2b345bbcf299e5545