[INFO] cloning repository https://github.com/TheRiven/mazegenerator [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheRiven/mazegenerator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheRiven%2Fmazegenerator", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheRiven%2Fmazegenerator'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9e021d139b3ec222eae371c8cfb95033e6e5a168 [INFO] testing TheRiven/mazegenerator against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheRiven%2Fmazegenerator" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/TheRiven/mazegenerator on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TheRiven/mazegenerator [INFO] finished tweaking git repo https://github.com/TheRiven/mazegenerator [INFO] tweaked toml for git repo https://github.com/TheRiven/mazegenerator written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/TheRiven/mazegenerator already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ce2b28d7f756cf2d525993d6942124d18e4f3420b5647dabe261fab6e8bee328 [INFO] running `Command { std: "docker" "start" "-a" "ce2b28d7f756cf2d525993d6942124d18e4f3420b5647dabe261fab6e8bee328", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ce2b28d7f756cf2d525993d6942124d18e4f3420b5647dabe261fab6e8bee328", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce2b28d7f756cf2d525993d6942124d18e4f3420b5647dabe261fab6e8bee328", kill_on_drop: false }` [INFO] [stdout] ce2b28d7f756cf2d525993d6942124d18e4f3420b5647dabe261fab6e8bee328 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7efd13b263aeeef3593b2b1432e6091d503285afbf0be038bdca044aa94fc8de [INFO] running `Command { std: "docker" "start" "-a" "7efd13b263aeeef3593b2b1432e6091d503285afbf0be038bdca044aa94fc8de", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.2 [INFO] [stderr] Compiling num-traits v0.2.2 [INFO] [stderr] Compiling nodrop v0.1.12 [INFO] [stderr] Compiling libc v0.2.39 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling memoffset v0.2.1 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling rayon-core v1.4.0 [INFO] [stderr] Compiling adler32 v1.0.2 [INFO] [stderr] Compiling byteorder v1.2.1 [INFO] [stderr] Compiling either v1.4.0 [INFO] [stderr] Compiling bitflags v1.0.1 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling scoped_threadpool v0.1.9 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling arrayvec v0.4.7 [INFO] [stderr] Compiling inflate v0.3.4 [INFO] [stderr] Compiling gif v0.9.2 [INFO] [stderr] Compiling deflate v0.7.17 [INFO] [stderr] Compiling crossbeam-epoch v0.3.0 [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling num_cpus v1.8.0 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] Compiling num-integer v0.1.36 [INFO] [stderr] Compiling num-traits v0.1.43 [INFO] [stderr] Compiling enum_primitive v0.1.1 [INFO] [stderr] Compiling num-iter v0.1.35 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling png v0.11.0 [INFO] [stderr] Compiling rayon v1.0.1 [INFO] [stderr] Compiling jpeg-decoder v0.1.14 [INFO] [stderr] Compiling image v0.18.0 [INFO] [stderr] Compiling mazegenerator v0.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/mazebuilder/dfs.rs:86:74 [INFO] [stdout] | [INFO] [stdout] 86 | fn pick_random_neighbour<'a>(neighbours: &Vec<(&'a Cell, Direction)>) -> ((&'a Cell, Direction)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/mazebuilder/dfs.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | (chosen) [INFO] [stdout] | ^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/mazebuilder/maze.rs:25:54 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn get_cell(&self, x: u32, y: u32) -> Option<(&Cell)> { [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 40.02s [INFO] running `Command { std: "docker" "inspect" "7efd13b263aeeef3593b2b1432e6091d503285afbf0be038bdca044aa94fc8de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7efd13b263aeeef3593b2b1432e6091d503285afbf0be038bdca044aa94fc8de", kill_on_drop: false }` [INFO] [stdout] 7efd13b263aeeef3593b2b1432e6091d503285afbf0be038bdca044aa94fc8de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 01bba712a46f7688181a53c9b5846f895ef7dca9dca82ebb625b974265feba33 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "01bba712a46f7688181a53c9b5846f895ef7dca9dca82ebb625b974265feba33", kill_on_drop: false }` [INFO] [stderr] Compiling mazegenerator v0.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/mazebuilder/dfs.rs:86:74 [INFO] [stdout] | [INFO] [stdout] 86 | fn pick_random_neighbour<'a>(neighbours: &Vec<(&'a Cell, Direction)>) -> ((&'a Cell, Direction)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/mazebuilder/dfs.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | (chosen) [INFO] [stdout] | ^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/mazebuilder/maze.rs:25:54 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn get_cell(&self, x: u32, y: u32) -> Option<(&Cell)> { [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/mazebuilder/dfs.rs:86:74 [INFO] [stdout] | [INFO] [stdout] 86 | fn pick_random_neighbour<'a>(neighbours: &Vec<(&'a Cell, Direction)>) -> ((&'a Cell, Direction)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/mazebuilder/dfs.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | (chosen) [INFO] [stdout] | ^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/mazebuilder/maze.rs:25:54 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn get_cell(&self, x: u32, y: u32) -> Option<(&Cell)> { [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.84s [INFO] running `Command { std: "docker" "inspect" "01bba712a46f7688181a53c9b5846f895ef7dca9dca82ebb625b974265feba33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01bba712a46f7688181a53c9b5846f895ef7dca9dca82ebb625b974265feba33", kill_on_drop: false }` [INFO] [stdout] 01bba712a46f7688181a53c9b5846f895ef7dca9dca82ebb625b974265feba33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c4151484e4c14ffd5117415094b04fbe8dd1ac783e2f36d94ec3b04f0bd238dd [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c4151484e4c14ffd5117415094b04fbe8dd1ac783e2f36d94ec3b04f0bd238dd", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/mazebuilder/dfs.rs:86:74 [INFO] [stderr] | [INFO] [stderr] 86 | fn pick_random_neighbour<'a>(neighbours: &Vec<(&'a Cell, Direction)>) -> ((&'a Cell, Direction)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/mazebuilder/dfs.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | (chosen) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/mazebuilder/maze.rs:25:54 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn get_cell(&self, x: u32, y: u32) -> Option<(&Cell)> { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/mazebuilder/dfs.rs:86:74 [INFO] [stderr] | [INFO] [stderr] 86 | fn pick_random_neighbour<'a>(neighbours: &Vec<(&'a Cell, Direction)>) -> ((&'a Cell, Direction)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/mazebuilder/dfs.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | (chosen) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/mazebuilder/maze.rs:25:54 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn get_cell(&self, x: u32, y: u32) -> Option<(&Cell)> { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/mazegenerator-dbabaf213e460706 [INFO] [stdout] running 9 tests [INFO] [stdout] test mazebuilder::tests::test_dfs_15_23 ... ok [INFO] [stdout] test mazebuilder::tests::test_generate_maze_selector ... ok [INFO] [stdout] test mazebuilder::tests::test_kruskal_10_10 ... ok [INFO] [stdout] test mazebuilder::tests::test_dfs_10_10 ... ok [INFO] [stdout] test mazebuilder::tests::test_kruskal_15_23 ... ok [INFO] [stdout] test mazebuilder::tests::test_dfs_100_100 ... ok [INFO] [stdout] test mazebuilder::tests::test_dfs_imperfect ... ok [INFO] [stdout] test mazebuilder::tests::test_kruskal_imperfect ... ok [INFO] [stdout] test mazebuilder::tests::test_kruskal_100_100 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/mazegenerator-a2a699bb96568d0d [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 [INFO] [stdout] [INFO] [stderr] Doc-tests mazegenerator [INFO] [stdout] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stdout] running 0 tests [INFO] [stderr] --> /opt/rustwide/workdir/src/mazebuilder/dfs.rs:86:74 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] 86 | fn pick_random_neighbour<'a>(neighbours: &Vec<(&'a Cell, Direction)>) -> ((&'a Cell, Direction)) { [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/workdir/src/mazebuilder/dfs.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | (chosen) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> /opt/rustwide/workdir/src/mazebuilder/maze.rs:25:54 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn get_cell(&self, x: u32, y: u32) -> Option<(&Cell)> { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] running `Command { std: "docker" "inspect" "c4151484e4c14ffd5117415094b04fbe8dd1ac783e2f36d94ec3b04f0bd238dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4151484e4c14ffd5117415094b04fbe8dd1ac783e2f36d94ec3b04f0bd238dd", kill_on_drop: false }` [INFO] [stdout] c4151484e4c14ffd5117415094b04fbe8dd1ac783e2f36d94ec3b04f0bd238dd