[INFO] cloning repository https://github.com/lesguillemets/curly-octo-funicular
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lesguillemets/curly-octo-funicular" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Fcurly-octo-funicular"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Fcurly-octo-funicular'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bda6392dece8b454886281db0d4d85f7e1381432
[INFO] checking lesguillemets/curly-octo-funicular against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Fcurly-octo-funicular" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lesguillemets/curly-octo-funicular on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lesguillemets/curly-octo-funicular
[INFO] finished tweaking git repo https://github.com/lesguillemets/curly-octo-funicular
[INFO] tweaked toml for git repo https://github.com/lesguillemets/curly-octo-funicular written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lesguillemets/curly-octo-funicular already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dfc81d7c6e9bc1bd0886d6c742de2653b09dea921632a209215cba0a364fb330
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dfc81d7c6e9bc1bd0886d6c742de2653b09dea921632a209215cba0a364fb330"`
[INFO] [stderr]     Checking reversi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/board.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/face.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/board.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/face.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_bw`
[INFO] [stderr]   --> src/board.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn count_bw(&self) -> (usize, usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_count`
[INFO] [stderr]   --> src/board.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn print_count(&self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `flip`
[INFO] [stderr]   --> src/face.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn flip(&mut self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_bw`
[INFO] [stderr]   --> src/board.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn count_bw(&self) -> (usize, usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_count`
[INFO] [stderr]   --> src/board.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn print_count(&self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `flip`
[INFO] [stderr]   --> src/face.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn flip(&mut self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "dfc81d7c6e9bc1bd0886d6c742de2653b09dea921632a209215cba0a364fb330"`
[INFO] running `"docker" "rm" "-f" "dfc81d7c6e9bc1bd0886d6c742de2653b09dea921632a209215cba0a364fb330"`
[INFO] [stdout] dfc81d7c6e9bc1bd0886d6c742de2653b09dea921632a209215cba0a364fb330