[INFO] cloning repository https://github.com/cronik/rusty-maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cronik/rusty-maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronik%2Frusty-maze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronik%2Frusty-maze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77ea60e11aef80abfad3f10093241ce43eb27377
[INFO] testing cronik/rusty-maze against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronik%2Frusty-maze" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cronik/rusty-maze on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cronik/rusty-maze
[INFO] finished tweaking git repo https://github.com/cronik/rusty-maze
[INFO] tweaked toml for git repo https://github.com/cronik/rusty-maze written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/cronik/rusty-maze already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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 ron v0.6.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6801a8456d586345e8540af5af908b309336d685057824f7a68f37e7000b285a
[INFO] running `Command { std: "docker" "start" "-a" "6801a8456d586345e8540af5af908b309336d685057824f7a68f37e7000b285a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6801a8456d586345e8540af5af908b309336d685057824f7a68f37e7000b285a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6801a8456d586345e8540af5af908b309336d685057824f7a68f37e7000b285a", kill_on_drop: false }`
[INFO] [stdout] 6801a8456d586345e8540af5af908b309336d685057824f7a68f37e7000b285a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e17d7738fdcd250fa7e716939585901116bb1850ab48c3899576575ca5b7482
[INFO] running `Command { std: "docker" "start" "-a" "8e17d7738fdcd250fa7e716939585901116bb1850ab48c3899576575ca5b7482", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling ron v0.6.6
[INFO] [stderr]    Compiling rusty_maze v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `lookup`
[INFO] [stdout]   --> src/disjset.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn lookup(&self, c: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/disjset.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.09s
[INFO] running `Command { std: "docker" "inspect" "8e17d7738fdcd250fa7e716939585901116bb1850ab48c3899576575ca5b7482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e17d7738fdcd250fa7e716939585901116bb1850ab48c3899576575ca5b7482", kill_on_drop: false }`
[INFO] [stdout] 8e17d7738fdcd250fa7e716939585901116bb1850ab48c3899576575ca5b7482
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9712f502b9f0edda31be7ae34a87dd9b1971c591bf421aa3bc3873c3fb903918
[INFO] running `Command { std: "docker" "start" "-a" "9712f502b9f0edda31be7ae34a87dd9b1971c591bf421aa3bc3873c3fb903918", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_maze v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `lookup`
[INFO] [stdout]   --> src/disjset.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn lookup(&self, c: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/disjset.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/disjset.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "9712f502b9f0edda31be7ae34a87dd9b1971c591bf421aa3bc3873c3fb903918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9712f502b9f0edda31be7ae34a87dd9b1971c591bf421aa3bc3873c3fb903918", kill_on_drop: false }`
[INFO] [stdout] 9712f502b9f0edda31be7ae34a87dd9b1971c591bf421aa3bc3873c3fb903918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab661eae9d446505384e41058e88148bc54d20ed1b5b78dea6d3bfb9f1cbed99
[INFO] running `Command { std: "docker" "start" "-a" "ab661eae9d446505384e41058e88148bc54d20ed1b5b78dea6d3bfb9f1cbed99", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `lookup`
[INFO] [stderr]   --> src/disjset.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn lookup(&self, c: usize) -> usize {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/disjset.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/disjset.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_maze` (lib) generated 2 warnings
[INFO] [stderr] warning: `rusty_maze` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_maze-870e221024285f33)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test disjset::tests::test_union ... ok
[INFO] [stdout] test maze::tests::test_save ... ok
[INFO] [stdout] test maze::tests::test_ui_draw ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_maze-cad7670c44e114d9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty_maze
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab661eae9d446505384e41058e88148bc54d20ed1b5b78dea6d3bfb9f1cbed99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab661eae9d446505384e41058e88148bc54d20ed1b5b78dea6d3bfb9f1cbed99", kill_on_drop: false }`
[INFO] [stdout] ab661eae9d446505384e41058e88148bc54d20ed1b5b78dea6d3bfb9f1cbed99