[INFO] cloning repository https://github.com/tyc/Aldous-Broder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyc/Aldous-Broder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyc%2FAldous-Broder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyc%2FAldous-Broder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d388db5a521d6c31c8c8962938d753f4b55f1cc7
[INFO] testing tyc/Aldous-Broder against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyc%2FAldous-Broder" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tyc/Aldous-Broder on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tyc/Aldous-Broder
[INFO] finished tweaking git repo https://github.com/tyc/Aldous-Broder
[INFO] tweaked toml for git repo https://github.com/tyc/Aldous-Broder written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/tyc/Aldous-Broder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4445efbbd0a810406d213ccdedf17ec0d28145218dea069a4f86c738ebfe9fc8
[INFO] running `Command { std: "docker" "start" "-a" "4445efbbd0a810406d213ccdedf17ec0d28145218dea069a4f86c738ebfe9fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4445efbbd0a810406d213ccdedf17ec0d28145218dea069a4f86c738ebfe9fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4445efbbd0a810406d213ccdedf17ec0d28145218dea069a4f86c738ebfe9fc8", kill_on_drop: false }`
[INFO] [stdout] 4445efbbd0a810406d213ccdedf17ec0d28145218dea069a4f86c738ebfe9fc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7cbde938e998c4b8e10c84a4efeafe4e0d098b352900dd3f221782846c71f9c
[INFO] running `Command { std: "docker" "start" "-a" "a7cbde938e998c4b8e10c84a4efeafe4e0d098b352900dd3f221782846c71f9c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.8
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling log v0.3.5
[INFO] [stderr]    Compiling aldous-broder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | const NORTH : u8 = (1<<3);
[INFO] [stdout]    |                    ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 - const NORTH : u8 = (1<<3);
[INFO] [stdout] 14 + const NORTH : u8 = 1<<3;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | const SOUTH : u8 = (1<<2);
[INFO] [stdout]    |                    ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 - const SOUTH : u8 = (1<<2);
[INFO] [stdout] 15 + const SOUTH : u8 = 1<<2;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | const EAST  : u8 = (1<<1);
[INFO] [stdout]    |                    ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 - const EAST  : u8 = (1<<1);
[INFO] [stdout] 16 + const EAST  : u8 = 1<<1;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:180:74
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; (GRID_SIZE)];
[INFO] [stdout]     |                                                                             ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; (GRID_SIZE)];
[INFO] [stdout] 180 +     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; GRID_SIZE];
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "a7cbde938e998c4b8e10c84a4efeafe4e0d098b352900dd3f221782846c71f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7cbde938e998c4b8e10c84a4efeafe4e0d098b352900dd3f221782846c71f9c", kill_on_drop: false }`
[INFO] [stdout] a7cbde938e998c4b8e10c84a4efeafe4e0d098b352900dd3f221782846c71f9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60b275c262e4d8f0a0dbe4fe230bbe736e8758a9f07df3e7eb5f8244d2167297
[INFO] running `Command { std: "docker" "start" "-a" "60b275c262e4d8f0a0dbe4fe230bbe736e8758a9f07df3e7eb5f8244d2167297", kill_on_drop: false }`
[INFO] [stderr]    Compiling aldous-broder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | const NORTH : u8 = (1<<3);
[INFO] [stdout]    |                    ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 - const NORTH : u8 = (1<<3);
[INFO] [stdout] 14 + const NORTH : u8 = 1<<3;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | const SOUTH : u8 = (1<<2);
[INFO] [stdout]    |                    ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 - const SOUTH : u8 = (1<<2);
[INFO] [stdout] 15 + const SOUTH : u8 = 1<<2;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | const EAST  : u8 = (1<<1);
[INFO] [stdout]    |                    ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 - const EAST  : u8 = (1<<1);
[INFO] [stdout] 16 + const EAST  : u8 = 1<<1;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:180:74
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; (GRID_SIZE)];
[INFO] [stdout]     |                                                                             ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; (GRID_SIZE)];
[INFO] [stdout] 180 +     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; GRID_SIZE];
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "60b275c262e4d8f0a0dbe4fe230bbe736e8758a9f07df3e7eb5f8244d2167297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b275c262e4d8f0a0dbe4fe230bbe736e8758a9f07df3e7eb5f8244d2167297", kill_on_drop: false }`
[INFO] [stdout] 60b275c262e4d8f0a0dbe4fe230bbe736e8758a9f07df3e7eb5f8244d2167297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 33985a4573d642f86cf1781aa9ae9319f64cfdaf453da527efbb775b54d21efb
[INFO] running `Command { std: "docker" "start" "-a" "33985a4573d642f86cf1781aa9ae9319f64cfdaf453da527efbb775b54d21efb", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/main.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 | const NORTH : u8 = (1<<3);
[INFO] [stderr]    |                    ^    ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 14 - const NORTH : u8 = (1<<3);
[INFO] [stderr] 14 + const NORTH : u8 = 1<<3;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/main.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SOUTH : u8 = (1<<2);
[INFO] [stderr]    |                    ^    ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 15 - const SOUTH : u8 = (1<<2);
[INFO] [stderr] 15 + const SOUTH : u8 = 1<<2;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/main.rs:16:20
[INFO] [stderr]    |
[INFO] [stderr] 16 | const EAST  : u8 = (1<<1);
[INFO] [stderr]    |                    ^    ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 16 - const EAST  : u8 = (1<<1);
[INFO] [stderr] 16 + const EAST  : u8 = 1<<1;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:180:74
[INFO] [stderr]     |
[INFO] [stderr] 180 |     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; (GRID_SIZE)];
[INFO] [stderr]     |                                                                             ^         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 180 -     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; (GRID_SIZE)];
[INFO] [stderr] 180 +     let mut cell = vec![Cell{visited:false, carve:(NORTH|SOUTH|EAST|WEST)}; GRID_SIZE];
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `aldous-broder` (bin "aldous-broder" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/aldous_broder-2541b3673297cea5)
[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" "33985a4573d642f86cf1781aa9ae9319f64cfdaf453da527efbb775b54d21efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33985a4573d642f86cf1781aa9ae9319f64cfdaf453da527efbb775b54d21efb", kill_on_drop: false }`
[INFO] [stdout] 33985a4573d642f86cf1781aa9ae9319f64cfdaf453da527efbb775b54d21efb