[INFO] cloning repository https://github.com/KoenWestendorp/mine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KoenWestendorp/mine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoenWestendorp%2Fmine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoenWestendorp%2Fmine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5304513639242dcaaaba85ebab9e3c82c987cc5a
[INFO] checking KoenWestendorp/mine against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoenWestendorp%2Fmine" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KoenWestendorp/mine
[INFO] finished tweaking git repo https://github.com/KoenWestendorp/mine
[INFO] tweaked toml for git repo https://github.com/KoenWestendorp/mine written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KoenWestendorp/mine on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KoenWestendorp/mine 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 568bca0b9141c88bb21452d6ec623b2708ceae279cbaaaea88bba43f564cb196
[INFO] running `Command { std: "docker" "start" "-a" "568bca0b9141c88bb21452d6ec623b2708ceae279cbaaaea88bba43f564cb196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "568bca0b9141c88bb21452d6ec623b2708ceae279cbaaaea88bba43f564cb196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "568bca0b9141c88bb21452d6ec623b2708ceae279cbaaaea88bba43f564cb196", kill_on_drop: false }`
[INFO] [stdout] 568bca0b9141c88bb21452d6ec623b2708ceae279cbaaaea88bba43f564cb196
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4139073f1483152e0b03c4d8d876f441ca2ca59f1821baee25a257e6df0cf42
[INFO] running `Command { std: "docker" "start" "-a" "a4139073f1483152e0b03c4d8d876f441ca2ca59f1821baee25a257e6df0cf42", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking mine v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `CellState` is never used
[INFO] [stdout]   --> src/cell.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub enum CellState {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cell_state` is never used
[INFO] [stdout]   --> src/cell.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Cell {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 80 |     pub fn cell_state(&self) -> CellState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `total_mines`, `mines_left`, `cells`, and `width` are never used
[INFO] [stdout]   --> src/field.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Field {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn total_mines(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn mines_left(&self) -> isize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn cells(&self) -> &Vec<Cell> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn width(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CellState` is never used
[INFO] [stdout]   --> src/cell.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub enum CellState {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cell_state` is never used
[INFO] [stdout]   --> src/cell.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Cell {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 80 |     pub fn cell_state(&self) -> CellState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `total_mines`, `mines_left`, `cells`, and `width` are never used
[INFO] [stdout]   --> src/field.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Field {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn total_mines(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn mines_left(&self) -> isize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn cells(&self) -> &Vec<Cell> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn width(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.63s
[INFO] running `Command { std: "docker" "inspect" "a4139073f1483152e0b03c4d8d876f441ca2ca59f1821baee25a257e6df0cf42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4139073f1483152e0b03c4d8d876f441ca2ca59f1821baee25a257e6df0cf42", kill_on_drop: false }`
[INFO] [stdout] a4139073f1483152e0b03c4d8d876f441ca2ca59f1821baee25a257e6df0cf42