[INFO] cloning repository https://github.com/lfalkau/maze-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lfalkau/maze-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfalkau%2Fmaze-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfalkau%2Fmaze-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5afb007b96063575179880a3472b1f58ac38b5e1
[INFO] testing lfalkau/maze-generator against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfalkau%2Fmaze-generator" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lfalkau/maze-generator on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lfalkau/maze-generator
[INFO] finished tweaking git repo https://github.com/lfalkau/maze-generator
[INFO] tweaked toml for git repo https://github.com/lfalkau/maze-generator written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lfalkau/maze-generator 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c40105588864d921b916c9937365d2d1ed1895b403f430120733a4bbd36c31fb
[INFO] running `Command { std: "docker" "start" "-a" "c40105588864d921b916c9937365d2d1ed1895b403f430120733a4bbd36c31fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c40105588864d921b916c9937365d2d1ed1895b403f430120733a4bbd36c31fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40105588864d921b916c9937365d2d1ed1895b403f430120733a4bbd36c31fb", kill_on_drop: false }`
[INFO] [stdout] c40105588864d921b916c9937365d2d1ed1895b403f430120733a4bbd36c31fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59aec0395556395a356a6f71396152511a3592bc1c5904df4efe49357019eb52
[INFO] running `Command { std: "docker" "start" "-a" "59aec0395556395a356a6f71396152511a3592bc1c5904df4efe49357019eb52", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bytemuck v1.7.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling maze-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `print_blockwise` is never used
[INFO] [stdout]    --> src/maze.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Maze {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn print_blockwise(&self, free_char: char, wall_char: char) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Link` should have a snake case name
[INFO] [stdout]    --> src/maze.rs:224:7
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let Link: &mut Link = match direction {
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `link`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.33s
[INFO] running `Command { std: "docker" "inspect" "59aec0395556395a356a6f71396152511a3592bc1c5904df4efe49357019eb52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59aec0395556395a356a6f71396152511a3592bc1c5904df4efe49357019eb52", kill_on_drop: false }`
[INFO] [stdout] 59aec0395556395a356a6f71396152511a3592bc1c5904df4efe49357019eb52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c5c8a9e50170e1e33eff2a573f106efe5d355d8a3d19b47204b3202077f812
[INFO] running `Command { std: "docker" "start" "-a" "41c5c8a9e50170e1e33eff2a573f106efe5d355d8a3d19b47204b3202077f812", kill_on_drop: false }`
[INFO] [stderr]    Compiling maze-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `print_blockwise` is never used
[INFO] [stdout]    --> src/maze.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Maze {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn print_blockwise(&self, free_char: char, wall_char: char) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Link` should have a snake case name
[INFO] [stdout]    --> src/maze.rs:224:7
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let Link: &mut Link = match direction {
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `link`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "41c5c8a9e50170e1e33eff2a573f106efe5d355d8a3d19b47204b3202077f812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c5c8a9e50170e1e33eff2a573f106efe5d355d8a3d19b47204b3202077f812", kill_on_drop: false }`
[INFO] [stdout] 41c5c8a9e50170e1e33eff2a573f106efe5d355d8a3d19b47204b3202077f812
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa62e88e6e504bfef0f764c51eb7395435464ed21cff3db597f1da6c20e2a058
[INFO] running `Command { std: "docker" "start" "-a" "fa62e88e6e504bfef0f764c51eb7395435464ed21cff3db597f1da6c20e2a058", kill_on_drop: false }`
[INFO] [stderr] warning: method `print_blockwise` is never used
[INFO] [stderr]    --> src/maze.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 104 | impl Maze {
[INFO] [stderr]     | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 162 |     pub fn print_blockwise(&self, free_char: char, wall_char: char) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Link` should have a snake case name
[INFO] [stderr]    --> src/maze.rs:224:7
[INFO] [stderr]     |
[INFO] [stderr] 224 |         let Link: &mut Link = match direction {
[INFO] [stderr]     |             ^^^^ help: convert the identifier to snake case: `link`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `maze-generator` (bin "maze-generator" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/maze_generator-aeb9205d156d3964)
[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" "fa62e88e6e504bfef0f764c51eb7395435464ed21cff3db597f1da6c20e2a058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa62e88e6e504bfef0f764c51eb7395435464ed21cff3db597f1da6c20e2a058", kill_on_drop: false }`
[INFO] [stdout] fa62e88e6e504bfef0f764c51eb7395435464ed21cff3db597f1da6c20e2a058