[INFO] cloning repository https://github.com/arturaz/advent-of-code-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arturaz/advent-of-code-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farturaz%2Fadvent-of-code-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farturaz%2Fadvent-of-code-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 350b5aa73a72792df3d2dc1b9dd1b8984134e908
[INFO] checking arturaz/advent-of-code-rust against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farturaz%2Fadvent-of-code-rust" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arturaz/advent-of-code-rust on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arturaz/advent-of-code-rust
[INFO] finished tweaking git repo https://github.com/arturaz/advent-of-code-rust
[INFO] tweaked toml for git repo https://github.com/arturaz/advent-of-code-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/arturaz/advent-of-code-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75cf2238b366f0193dd7d951f9ad89cc628e6ed8e81c7ed7f799d7b268a02ce0
[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" "75cf2238b366f0193dd7d951f9ad89cc628e6ed8e81c7ed7f799d7b268a02ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75cf2238b366f0193dd7d951f9ad89cc628e6ed8e81c7ed7f799d7b268a02ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75cf2238b366f0193dd7d951f9ad89cc628e6ed8e81c7ed7f799d7b268a02ce0", kill_on_drop: false }`
[INFO] [stdout] 75cf2238b366f0193dd7d951f9ad89cc628e6ed8e81c7ed7f799d7b268a02ce0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--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] 32bd129a59c741aef9d4f529f0fdba6d29f3de9593ae8a7cfe0d9f4382e53cfa
[INFO] running `Command { std: "docker" "start" "-a" "32bd129a59c741aef9d4f529f0fdba6d29f3de9593ae8a7cfe0d9f4382e53cfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking arraymap v0.1.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'array_map'
[INFO] [stdout]   --> src/program7.rs:80:41
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let amplifiers = phase_settings.map(|phase_setting| Amplifier::new(program, *phase_setting));
[INFO] [stdout]    |                                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #75243 <https://github.com/rust-lang/rust/issues/75243> for more information
[INFO] [stdout]    = help: add `#![feature(array_map)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0614]: type `u8` cannot be dereferenced
[INFO] [stdout]   --> src/program7.rs:80:85
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let amplifiers = phase_settings.map(|phase_setting| Amplifier::new(program, *phase_setting));
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'array_map'
[INFO] [stdout]   --> src/program7.rs:80:41
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let amplifiers = phase_settings.map(|phase_setting| Amplifier::new(program, *phase_setting));
[INFO] [stdout]    |                                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #75243 <https://github.com/rust-lang/rust/issues/75243> for more information
[INFO] [stdout]    = help: add `#![feature(array_map)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0614]: type `u8` cannot be dereferenced
[INFO] [stdout]   --> src/program7.rs:80:85
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let amplifiers = phase_settings.map(|phase_setting| Amplifier::new(program, *phase_setting));
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arraymap::ArrayMap`
[INFO] [stdout]  --> src/program7.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use arraymap::ArrayMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0614, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0614`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arraymap::ArrayMap`
[INFO] [stdout]  --> src/program7.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use arraymap::ArrayMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0614, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0614`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "32bd129a59c741aef9d4f529f0fdba6d29f3de9593ae8a7cfe0d9f4382e53cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32bd129a59c741aef9d4f529f0fdba6d29f3de9593ae8a7cfe0d9f4382e53cfa", kill_on_drop: false }`
[INFO] [stdout] 32bd129a59c741aef9d4f529f0fdba6d29f3de9593ae8a7cfe0d9f4382e53cfa