[INFO] cloning repository https://github.com/idebugger-learning/advent-of-code-2018-day13
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/idebugger-learning/advent-of-code-2018-day13" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day13", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day13'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc6946c0b167836f408ab5a19559a0f001716093
[INFO] checking idebugger-learning/advent-of-code-2018-day13 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day13" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/idebugger-learning/advent-of-code-2018-day13 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/idebugger-learning/advent-of-code-2018-day13
[INFO] finished tweaking git repo https://github.com/idebugger-learning/advent-of-code-2018-day13
[INFO] tweaked toml for git repo https://github.com/idebugger-learning/advent-of-code-2018-day13 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/idebugger-learning/advent-of-code-2018-day13 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 440502f181f2673ad5e30a0e774c181b08da6c543d8d23cfac904500ff6ab50c
[INFO] running `Command { std: "docker" "start" "-a" "440502f181f2673ad5e30a0e774c181b08da6c543d8d23cfac904500ff6ab50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "440502f181f2673ad5e30a0e774c181b08da6c543d8d23cfac904500ff6ab50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "440502f181f2673ad5e30a0e774c181b08da6c543d8d23cfac904500ff6ab50c", kill_on_drop: false }`
[INFO] [stdout] 440502f181f2673ad5e30a0e774c181b08da6c543d8d23cfac904500ff6ab50c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6e94497ac60719bae8e9898e68e9fadecb959a89b3479ce4d82b81cb3a0adef
[INFO] running `Command { std: "docker" "start" "-a" "e6e94497ac60719bae8e9898e68e9fadecb959a89b3479ce4d82b81cb3a0adef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.25.0
[INFO] [stderr]     Checking day13 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write`, `stdout`, `thread`, `time::Duration`
[INFO] [stdout]  --> src/main.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{stdout, Error, Write},
[INFO] [stdout]   |          ^^^^^^         ^^^^^
[INFO] [stdout] 3 |     thread,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `stdout`, `thread`, `time::Duration`
[INFO] [stdout]  --> src/main.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{stdout, Error, Write},
[INFO] [stdout]   |          ^^^^^^         ^^^^^
[INFO] [stdout] 3 |     thread,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExecutableCommand`, `execute`, `position`, `self`, `style::Print`
[INFO] [stdout]   --> src/main.rs:8:14
[INFO] [stdout]    |
[INFO] [stdout] 8  |     cursor::{self, position},
[INFO] [stdout]    |              ^^^^  ^^^^^^^^
[INFO] [stdout] 9  |     execute,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     style::Print,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 11 |     ExecutableCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExecutableCommand`, `execute`, `position`, `self`, `style::Print`
[INFO] [stdout]   --> src/main.rs:8:14
[INFO] [stdout]    |
[INFO] [stdout] 8  |     cursor::{self, position},
[INFO] [stdout]    |              ^^^^  ^^^^^^^^
[INFO] [stdout] 9  |     execute,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     style::Print,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 11 |     ExecutableCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_display_size` is never used
[INFO] [stdout]    --> src/railroad.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 67  | impl RailRoad {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 149 |     pub fn get_display_size(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_display_size` is never used
[INFO] [stdout]    --> src/railroad.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 67  | impl RailRoad {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 149 |     pub fn get_display_size(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "e6e94497ac60719bae8e9898e68e9fadecb959a89b3479ce4d82b81cb3a0adef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e94497ac60719bae8e9898e68e9fadecb959a89b3479ce4d82b81cb3a0adef", kill_on_drop: false }`
[INFO] [stdout] e6e94497ac60719bae8e9898e68e9fadecb959a89b3479ce4d82b81cb3a0adef
[INFO] checking idebugger-learning/advent-of-code-2018-day13 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day13" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/idebugger-learning/advent-of-code-2018-day13 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/idebugger-learning/advent-of-code-2018-day13
[INFO] finished tweaking git repo https://github.com/idebugger-learning/advent-of-code-2018-day13
[INFO] tweaked toml for git repo https://github.com/idebugger-learning/advent-of-code-2018-day13 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/idebugger-learning/advent-of-code-2018-day13 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7daf4843fbda2e69f010d3e8554c18afa0af9fafd0186db9e75501a48b5b210d
[INFO] running `Command { std: "docker" "start" "-a" "7daf4843fbda2e69f010d3e8554c18afa0af9fafd0186db9e75501a48b5b210d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7daf4843fbda2e69f010d3e8554c18afa0af9fafd0186db9e75501a48b5b210d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7daf4843fbda2e69f010d3e8554c18afa0af9fafd0186db9e75501a48b5b210d", kill_on_drop: false }`
[INFO] [stdout] 7daf4843fbda2e69f010d3e8554c18afa0af9fafd0186db9e75501a48b5b210d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b96e443d3a104bab7a9bbc0567df1f134830c8671132a241992bfb11b51435f
[INFO] running `Command { std: "docker" "start" "-a" "5b96e443d3a104bab7a9bbc0567df1f134830c8671132a241992bfb11b51435f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.0/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5b96e443d3a104bab7a9bbc0567df1f134830c8671132a241992bfb11b51435f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b96e443d3a104bab7a9bbc0567df1f134830c8671132a241992bfb11b51435f", kill_on_drop: false }`
[INFO] [stdout] 5b96e443d3a104bab7a9bbc0567df1f134830c8671132a241992bfb11b51435f