[INFO] cloning repository https://github.com/stephenmw/adventofcode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephenmw/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenmw%2Fadventofcode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenmw%2Fadventofcode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1813ced0afc53791c27f166cd1c19b422131024e
[INFO] checking stephenmw/adventofcode2021 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenmw%2Fadventofcode2021" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stephenmw/adventofcode2021 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stephenmw/adventofcode2021
[INFO] finished tweaking git repo https://github.com/stephenmw/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/stephenmw/adventofcode2021 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/stephenmw/adventofcode2021 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99956c4b383d9a24e9b60493ad8485ea50dcd4d0611e9273827b57067ed7d92a
[INFO] running `Command { std: "docker" "start" "-a" "99956c4b383d9a24e9b60493ad8485ea50dcd4d0611e9273827b57067ed7d92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99956c4b383d9a24e9b60493ad8485ea50dcd4d0611e9273827b57067ed7d92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99956c4b383d9a24e9b60493ad8485ea50dcd4d0611e9273827b57067ed7d92a", kill_on_drop: false }`
[INFO] [stdout] 99956c4b383d9a24e9b60493ad8485ea50dcd4d0611e9273827b57067ed7d92a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf630a98ddca48d4a455c0e7e3c91caf860297414a9212706245533587c71c3
[INFO] running `Command { std: "docker" "start" "-a" "ecf630a98ddca48d4a455c0e7e3c91caf860297414a9212706245533587c71c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*grid` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/solutions/day11.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for p in grid.iter() {
[INFO] [stdout]    |              -----------
[INFO] [stdout]    |              |
[INFO] [stdout]    |              immutable borrow occurs here
[INFO] [stdout]    |              immutable borrow later used here
[INFO] [stdout] 27 |         if let Some(x) = grid.get_mut(p) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*grid` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/solutions/day11.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for p in grid.iter() {
[INFO] [stdout]    |              -----------
[INFO] [stdout]    |              |
[INFO] [stdout]    |              immutable borrow occurs here
[INFO] [stdout]    |              immutable borrow later used here
[INFO] [stdout] 27 |         if let Some(x) = grid.get_mut(p) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "aoc2021") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "aoc2021" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ecf630a98ddca48d4a455c0e7e3c91caf860297414a9212706245533587c71c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf630a98ddca48d4a455c0e7e3c91caf860297414a9212706245533587c71c3", kill_on_drop: false }`
[INFO] [stdout] ecf630a98ddca48d4a455c0e7e3c91caf860297414a9212706245533587c71c3