[INFO] cloning repository https://github.com/icheered/SudokuSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icheered/SudokuSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficheered%2FSudokuSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficheered%2FSudokuSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cae2aaa84c15ad7dfa2205908feed299d85da41
[INFO] checking icheered/SudokuSolver against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficheered%2FSudokuSolver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/icheered/SudokuSolver
[INFO] finished tweaking git repo https://github.com/icheered/SudokuSolver
[INFO] tweaked toml for git repo https://github.com/icheered/SudokuSolver written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/icheered/SudokuSolver on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/icheered/SudokuSolver 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded eyre v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3d16ce50fb169492376de56888ce57197f1f4bfd6623ae5876aa04df649b2ea
[INFO] running `Command { std: "docker" "start" "-a" "d3d16ce50fb169492376de56888ce57197f1f4bfd6623ae5876aa04df649b2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3d16ce50fb169492376de56888ce57197f1f4bfd6623ae5876aa04df649b2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d16ce50fb169492376de56888ce57197f1f4bfd6623ae5876aa04df649b2ea", kill_on_drop: false }`
[INFO] [stdout] d3d16ce50fb169492376de56888ce57197f1f4bfd6623ae5876aa04df649b2ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb577d810fa861659f3b40a64dda0c2794a9eabfeb7a652ab5a96f199193991e
[INFO] running `Command { std: "docker" "start" "-a" "fb577d810fa861659f3b40a64dda0c2794a9eabfeb7a652ab5a96f199193991e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling eyre v0.6.9
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id`, `clues`, and `difficulty` are never read
[INFO] [stdout]   --> src/utility.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Record {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     pub id: i64,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub clues: i8,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |     pub difficulty: f64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is 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: fields `id`, `clues`, and `difficulty` are never read
[INFO] [stdout]   --> src/utility.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Record {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     pub id: i64,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub clues: i8,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |     pub difficulty: f64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.67s
[INFO] running `Command { std: "docker" "inspect" "fb577d810fa861659f3b40a64dda0c2794a9eabfeb7a652ab5a96f199193991e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb577d810fa861659f3b40a64dda0c2794a9eabfeb7a652ab5a96f199193991e", kill_on_drop: false }`
[INFO] [stdout] fb577d810fa861659f3b40a64dda0c2794a9eabfeb7a652ab5a96f199193991e