[INFO] cloning repository https://github.com/grogers0/calendar-puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grogers0/calendar-puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrogers0%2Fcalendar-puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrogers0%2Fcalendar-puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5382c21b4bec629862424273ac0d7d6f7f1e6762
[INFO] checking grogers0/calendar-puzzle against master#f8c27dfe1a2e7fb538fd91dad53de06992c7c967 for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrogers0%2Fcalendar-puzzle" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grogers0/calendar-puzzle on toolchain f8c27dfe1a2e7fb538fd91dad53de06992c7c967
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grogers0/calendar-puzzle
[INFO] finished tweaking git repo https://github.com/grogers0/calendar-puzzle
[INFO] tweaked toml for git repo https://github.com/grogers0/calendar-puzzle written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/grogers0/calendar-puzzle 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" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a70a60c62a69ad8a024130b2beef50aee3334f41ffb2351489e16fb2ca72fbb
[INFO] running `Command { std: "docker" "start" "-a" "5a70a60c62a69ad8a024130b2beef50aee3334f41ffb2351489e16fb2ca72fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a70a60c62a69ad8a024130b2beef50aee3334f41ffb2351489e16fb2ca72fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a70a60c62a69ad8a024130b2beef50aee3334f41ffb2351489e16fb2ca72fbb", kill_on_drop: false }`
[INFO] [stdout] 5a70a60c62a69ad8a024130b2beef50aee3334f41ffb2351489e16fb2ca72fbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8997c2c38b6b7eb0ce7de1e2d3252a4fde50ab6e5e6e45166b37c8393f26abf
[INFO] running `Command { std: "docker" "start" "-a" "f8997c2c38b6b7eb0ce7de1e2d3252a4fde50ab6e5e6e45166b37c8393f26abf", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking calendar-puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `is_filled` and `unplace` are never used
[INFO] [stdout]   --> src/board.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Board {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn is_filled(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn unplace(&mut self, piece: &Piece, pos: &Pos) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `flipped`, `rotated`, and `permutations` are never used
[INFO] [stdout]   --> src/piece.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Piece {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn flipped(&self) -> Piece {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn rotated(&self) -> Piece {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn permutations(&self) -> HashSet<Piece> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_filled` and `unplace` are never used
[INFO] [stdout]   --> src/board.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Board {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn is_filled(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn unplace(&mut self, piece: &Piece, pos: &Pos) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `permutations` is never used
[INFO] [stdout]   --> src/piece.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn permutations(&self) -> HashSet<Piece> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "f8997c2c38b6b7eb0ce7de1e2d3252a4fde50ab6e5e6e45166b37c8393f26abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8997c2c38b6b7eb0ce7de1e2d3252a4fde50ab6e5e6e45166b37c8393f26abf", kill_on_drop: false }`
[INFO] [stdout] f8997c2c38b6b7eb0ce7de1e2d3252a4fde50ab6e5e6e45166b37c8393f26abf