[INFO] cloning repository https://github.com/agmcleod/adventofcode-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agmcleod/adventofcode-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cf69dd09a1f1066b8d3f1efb05db0cdfc5b97db
[INFO] checking agmcleod/adventofcode-2020 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/agmcleod/adventofcode-2020 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/agmcleod/adventofcode-2020
[INFO] finished tweaking git repo https://github.com/agmcleod/adventofcode-2020
[INFO] tweaked toml for git repo https://github.com/agmcleod/adventofcode-2020 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/agmcleod/adventofcode-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca340326b3d14d0607fb00ab2de02f7c9c98763ce17597e7bd059484368b1929
[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" "ca340326b3d14d0607fb00ab2de02f7c9c98763ce17597e7bd059484368b1929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca340326b3d14d0607fb00ab2de02f7c9c98763ce17597e7bd059484368b1929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca340326b3d14d0607fb00ab2de02f7c9c98763ce17597e7bd059484368b1929", kill_on_drop: false }`
[INFO] [stdout] ca340326b3d14d0607fb00ab2de02f7c9c98763ce17597e7bd059484368b1929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96b7bc81f2786518e525971b53af73fde59f2c318e75133b86e3704b09e8da1b
[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" "96b7bc81f2786518e525971b53af73fde59f2c318e75133b86e3704b09e8da1b", kill_on_drop: false }`
[INFO] [stderr]     Checking read_input v0.1.0 (/opt/rustwide/workdir/read_input)
[INFO] [stderr]     Checking fifteen v0.1.0 (/opt/rustwide/workdir/15)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nine v0.1.0 (/opt/rustwide/workdir/9)
[INFO] [stderr]     Checking nineteen v0.1.0 (/opt/rustwide/workdir/19)
[INFO] [stderr]     Checking eight v0.1.0 (/opt/rustwide/workdir/8)
[INFO] [stderr]     Checking eighteen v0.1.0 (/opt/rustwide/workdir/18)
[INFO] [stderr]     Checking thirteen v0.1.0 (/opt/rustwide/workdir/13)
[INFO] [stderr]     Checking twenty v0.1.0 (/opt/rustwide/workdir/20)
[INFO] [stderr]     Checking three v0.1.0 (/opt/rustwide/workdir/3)
[INFO] [stderr]     Checking eleven v0.1.0 (/opt/rustwide/workdir/11)
[INFO] [stderr]     Checking seven v0.1.0 (/opt/rustwide/workdir/7)
[INFO] [stderr]     Checking twelve v0.1.0 (/opt/rustwide/workdir/12)
[INFO] [stderr]     Checking sixteen v0.1.0 (/opt/rustwide/workdir/16)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking six v0.1.0 (/opt/rustwide/workdir/6)
[INFO] [stderr]     Checking two v0.1.0 (/opt/rustwide/workdir/2)
[INFO] [stderr]     Checking one v0.1.0 (/opt/rustwide/workdir/1)
[INFO] [stderr]     Checking five v0.1.0 (/opt/rustwide/workdir/5)
[INFO] [stdout] warning: field is never read: `tile_id`
[INFO] [stdout]   --> 20/src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     tile_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side`
[INFO] [stdout]   --> 20/src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     side: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tile_id`
[INFO] [stdout]   --> 20/src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     tile_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tiles`
[INFO] [stdout]   --> 20/src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     tiles: Vec<Tile>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tile_connections`
[INFO] [stdout]   --> 20/src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     tile_connections: HashMap<String, Vec<Connection>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking four v0.1.0 (/opt/rustwide/workdir/4)
[INFO] [stderr]     Checking ten v0.1.0 (/opt/rustwide/workdir/10)
[INFO] [stderr]     Checking seventeen v0.1.0 (/opt/rustwide/workdir/17)
[INFO] [stderr]     Checking fourteen v0.1.0 (/opt/rustwide/workdir/14)
[INFO] [stdout] warning: field is never read: `tile_id`
[INFO] [stdout]   --> 20/src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     tile_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side`
[INFO] [stdout]   --> 20/src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     side: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tile_id`
[INFO] [stdout]   --> 20/src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     tile_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tiles`
[INFO] [stdout]   --> 20/src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     tiles: Vec<Tile>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tile_connections`
[INFO] [stdout]   --> 20/src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     tile_connections: HashMap<String, Vec<Connection>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.86s
[INFO] running `Command { std: "docker" "inspect" "96b7bc81f2786518e525971b53af73fde59f2c318e75133b86e3704b09e8da1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b7bc81f2786518e525971b53af73fde59f2c318e75133b86e3704b09e8da1b", kill_on_drop: false }`
[INFO] [stdout] 96b7bc81f2786518e525971b53af73fde59f2c318e75133b86e3704b09e8da1b