[INFO] cloning repository https://github.com/robdobsn/wordsearch_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robdobsn/wordsearch_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdobsn%2Fwordsearch_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdobsn%2Fwordsearch_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a6d56dd3d1beb5dce01562182419154fae1c282
[INFO] checking robdobsn/wordsearch_generator against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdobsn%2Fwordsearch_generator" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/robdobsn/wordsearch_generator
[INFO] finished tweaking git repo https://github.com/robdobsn/wordsearch_generator
[INFO] tweaked toml for git repo https://github.com/robdobsn/wordsearch_generator written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robdobsn/wordsearch_generator on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/robdobsn/wordsearch_generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking robdobsn/wordsearch_generator against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdobsn%2Fwordsearch_generator" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/robdobsn/wordsearch_generator
[INFO] finished tweaking git repo https://github.com/robdobsn/wordsearch_generator
[INFO] tweaked toml for git repo https://github.com/robdobsn/wordsearch_generator written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robdobsn/wordsearch_generator on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/robdobsn/wordsearch_generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.223
[INFO] [stderr]   Downloaded serde v1.0.223
[INFO] [stderr]   Downloaded serde_core v1.0.223
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 290823e6ce6281cd9aacd81b45d8d6d67dfdccf5e3d1b236124ba4f8d851c116
[INFO] running `Command { std: "docker" "start" "-a" "290823e6ce6281cd9aacd81b45d8d6d67dfdccf5e3d1b236124ba4f8d851c116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "290823e6ce6281cd9aacd81b45d8d6d67dfdccf5e3d1b236124ba4f8d851c116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "290823e6ce6281cd9aacd81b45d8d6d67dfdccf5e3d1b236124ba4f8d851c116", kill_on_drop: false }`
[INFO] [stdout] 290823e6ce6281cd9aacd81b45d8d6d67dfdccf5e3d1b236124ba4f8d851c116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab1f38cc5dacf8f30473d3f54e6b5900ec089ea51cdad726d6c48d85c3a41442
[INFO] running `Command { std: "docker" "start" "-a" "ab1f38cc5dacf8f30473d3f54e6b5900ec089ea51cdad726d6c48d85c3a41442", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.223
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]    Compiling serde v1.0.223
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking clap_builder v4.5.47
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking indexmap v2.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.223
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]     Checking clap v4.5.47
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking wordsearch_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `word_idx` and `intersections` are never read
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct PlacementCandidate {
[INFO] [stdout]    |        ------------------ fields in this struct
[INFO] [stdout] 63 |     word_idx: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     intersections: Vec<usize>, // indices of intersections this placement would create
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PlacementCandidate` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstraintState` is never constructed
[INFO] [stdout]   --> src/main.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct ConstraintState {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `word_idx` and `intersections` are never read
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct PlacementCandidate {
[INFO] [stdout]    |        ------------------ fields in this struct
[INFO] [stdout] 63 |     word_idx: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     intersections: Vec<usize>, // indices of intersections this placement would create
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PlacementCandidate` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstraintState` is never constructed
[INFO] [stdout]   --> src/main.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct ConstraintState {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "ab1f38cc5dacf8f30473d3f54e6b5900ec089ea51cdad726d6c48d85c3a41442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab1f38cc5dacf8f30473d3f54e6b5900ec089ea51cdad726d6c48d85c3a41442", kill_on_drop: false }`
[INFO] [stdout] ab1f38cc5dacf8f30473d3f54e6b5900ec089ea51cdad726d6c48d85c3a41442
