[INFO] cloning repository https://github.com/paavohuhtala/toylang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paavohuhtala/toylang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaavohuhtala%2Ftoylang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaavohuhtala%2Ftoylang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cef30c0fec1d034c80bec83264738666facf326
[INFO] documenting paavohuhtala/toylang 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%2Fpaavohuhtala%2Ftoylang" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paavohuhtala/toylang 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] started tweaking git repo https://github.com/paavohuhtala/toylang
[INFO] finished tweaking git repo https://github.com/paavohuhtala/toylang
[INFO] tweaked toml for git repo https://github.com/paavohuhtala/toylang written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/paavohuhtala/toylang 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] [stdout] 6b0b907626214e8c6331e562310921ffbc53ea4c095c021805ab7884ab81165d
[INFO] running `Command { std: "docker" "start" "-a" "6b0b907626214e8c6331e562310921ffbc53ea4c095c021805ab7884ab81165d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b0b907626214e8c6331e562310921ffbc53ea4c095c021805ab7884ab81165d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b0b907626214e8c6331e562310921ffbc53ea4c095c021805ab7884ab81165d", kill_on_drop: false }`
[INFO] [stdout] 6b0b907626214e8c6331e562310921ffbc53ea4c095c021805ab7884ab81165d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] [stdout] 146764df201a888e754c4c035aebee1dfbe4dbfdb0e2e4c207452f764873964f
[INFO] running `Command { std: "docker" "start" "-a" "146764df201a888e754c4c035aebee1dfbe4dbfdb0e2e4c207452f764873964f", kill_on_drop: false }`
[INFO] [stderr]  Documenting toylanguage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toylanguage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "146764df201a888e754c4c035aebee1dfbe4dbfdb0e2e4c207452f764873964f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146764df201a888e754c4c035aebee1dfbe4dbfdb0e2e4c207452f764873964f", kill_on_drop: false }`
[INFO] [stdout] 146764df201a888e754c4c035aebee1dfbe4dbfdb0e2e4c207452f764873964f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] f647bf1eed5b5cb7eacf3e4fe29782a16a62e325d71cce0b14dbea504ae68dbc
[INFO] running `Command { std: "docker" "start" "-a" "f647bf1eed5b5cb7eacf3e4fe29782a16a62e325d71cce0b14dbea504ae68dbc", kill_on_drop: false }`
[INFO] [stderr]  Documenting toylanguage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "f647bf1eed5b5cb7eacf3e4fe29782a16a62e325d71cce0b14dbea504ae68dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f647bf1eed5b5cb7eacf3e4fe29782a16a62e325d71cce0b14dbea504ae68dbc", kill_on_drop: false }`
[INFO] [stdout] f647bf1eed5b5cb7eacf3e4fe29782a16a62e325d71cce0b14dbea504ae68dbc