[INFO] cloning repository https://github.com/jeremysalwen/adventofcode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeremysalwen/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremysalwen%2Fadventofcode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremysalwen%2Fadventofcode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 537d64c389ddefc1aed1c0ea1f2da48fac91424b
[INFO] documenting jeremysalwen/adventofcode2021 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremysalwen%2Fadventofcode2021" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremysalwen/adventofcode2021 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jeremysalwen/adventofcode2021
[INFO] finished tweaking git repo https://github.com/jeremysalwen/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/jeremysalwen/adventofcode2021 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremysalwen/adventofcode2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bimap v0.6.1
[INFO] [stderr]   Downloaded array2d v0.2.1
[INFO] [stderr]   Downloaded counter v0.5.2
[INFO] [stderr]   Downloaded bitreader v0.3.4
[INFO] [stderr]   Downloaded ndarray v0.15.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", 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] 676f9d11b4906baec49b100e914addf799d24b2b356a336cceddb5f4066d9743
[INFO] running `Command { std: "docker" "start" "-a" "676f9d11b4906baec49b100e914addf799d24b2b356a336cceddb5f4066d9743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "676f9d11b4906baec49b100e914addf799d24b2b356a336cceddb5f4066d9743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "676f9d11b4906baec49b100e914addf799d24b2b356a336cceddb5f4066d9743", kill_on_drop: false }`
[INFO] [stdout] 676f9d11b4906baec49b100e914addf799d24b2b356a336cceddb5f4066d9743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 6992fe56fc75a3f963e255130eb046e4203bab1a2ed49fd78d3573b1051b91a6
[INFO] running `Command { std: "docker" "start" "-a" "6992fe56fc75a3f963e255130eb046e4203bab1a2ed49fd78d3573b1051b91a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde v1.0.131
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking bimap v0.6.1
[INFO] [stderr]     Checking array2d v0.2.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking bitreader v0.3.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking counter v0.5.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]  Documenting a2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]  --> src/twentyfour.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use z3::ast::Ast;
[INFO] [stdout]   |     ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |         vars: &HashMap<char, z3::ast::BV<'c>>,
[INFO] [stdout]    |                              ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ctx: &'c z3::Context,
[INFO] [stdout]    |                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ) -> z3::ast::BV<'c> {
[INFO] [stdout]    |          ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:69:49
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn apply<'a, 'c: 'a, I: Iterator<Item = &'a z3::ast::BV<'c>>>(
[INFO] [stdout]    |                                                 ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |         vars: &mut HashMap<char, z3::ast::BV<'c>>,
[INFO] [stdout]    |                                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         ctx: &'c z3::Context,
[INFO] [stdout]    |                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:75:20
[INFO] [stdout]    |
[INFO] [stdout] 75 |         optimize: &z3::Optimize,
[INFO] [stdout]    |                    ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `a2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name a2021 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=473a18907e2c59c0 -L dependency=/opt/rustwide/target/debug/deps --extern array2d=/opt/rustwide/target/debug/deps/libarray2d-67ec5696597ae318.rmeta --extern bimap=/opt/rustwide/target/debug/deps/libbimap-787ecc9403c5f204.rmeta --extern bitreader=/opt/rustwide/target/debug/deps/libbitreader-58e3f3041084c2bf.rmeta --extern counter=/opt/rustwide/target/debug/deps/libcounter-7a16a308a4df5e8f.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-0201e1013f705ac2.so --extern hex=/opt/rustwide/target/debug/deps/libhex-6675fd61bc3ec9fe.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-c3e915a3b5e36158.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern multimap=/opt/rustwide/target/debug/deps/libmultimap-32c7d2df69a857aa.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-23de98f00a7d20f0.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-1c4ef7f796d1ac44.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-01d9c5dc0d72cf1f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6992fe56fc75a3f963e255130eb046e4203bab1a2ed49fd78d3573b1051b91a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6992fe56fc75a3f963e255130eb046e4203bab1a2ed49fd78d3573b1051b91a6", kill_on_drop: false }`
[INFO] [stdout] 6992fe56fc75a3f963e255130eb046e4203bab1a2ed49fd78d3573b1051b91a6