[INFO] cloning repository https://github.com/akky2501/mincaml-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akky2501/mincaml-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakky2501%2Fmincaml-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakky2501%2Fmincaml-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8295cf3166d850c830ed45b1330d7f8230eb119
[INFO] documenting akky2501/mincaml-rust against 1.70.0 for beta-1.71-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakky2501%2Fmincaml-rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akky2501/mincaml-rust on toolchain 1.70.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.70.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/akky2501/mincaml-rust
[INFO] finished tweaking git repo https://github.com/akky2501/mincaml-rust
[INFO] tweaked toml for git repo https://github.com/akky2501/mincaml-rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/akky2501/mincaml-rust 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" "+1.70.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazy_static v0.2.5
[INFO] [stderr]   Downloaded nom v2.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+1.70.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cebb5bcfaacbed53f99dc408ea829ee8060b477dbc318d275dd750ec0e9f342f
[INFO] running `Command { std: "docker" "start" "-a" "cebb5bcfaacbed53f99dc408ea829ee8060b477dbc318d275dd750ec0e9f342f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cebb5bcfaacbed53f99dc408ea829ee8060b477dbc318d275dd750ec0e9f342f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cebb5bcfaacbed53f99dc408ea829ee8060b477dbc318d275dd750ec0e9f342f", kill_on_drop: false }`
[INFO] [stdout] cebb5bcfaacbed53f99dc408ea829ee8060b477dbc318d275dd750ec0e9f342f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+1.70.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 045dcc5fe8f47f69c487a6d2878f38d515b2564bc0906a075ca00ce08fbc785e
[INFO] running `Command { std: "docker" "start" "-a" "045dcc5fe8f47f69c487a6d2878f38d515b2564bc0906a075ca00ce08fbc785e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking lazy_static v0.2.5
[INFO] [stderr]     Checking nom v2.2.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]  Documenting mincaml-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: type ascription cannot be followed by a method call
[INFO] [stdout]    --> src/typing.rs:324:23
[INFO] [stdout]     |
[INFO] [stdout] 324 |             Ok(infer!(id : ty.generalize(env), t2))
[INFO] [stdout]     |                       ^^-----
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove the type ascription
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type ascription cannot be followed by a method call
[INFO] [stdout]    --> src/typing.rs:358:23
[INFO] [stdout]     |
[INFO] [stdout] 358 |             Ok(infer!(name : fun_type.generalize(env), t))
[INFO] [stdout]     |                       ^^^^-----------
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove the type ascription
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mincaml-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name mincaml_rust src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bdaa32d843b701ec -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-972ceeaf1a7bf3d0.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-b93874781bce9e03.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-76d3caefdbb9b740.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "045dcc5fe8f47f69c487a6d2878f38d515b2564bc0906a075ca00ce08fbc785e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045dcc5fe8f47f69c487a6d2878f38d515b2564bc0906a075ca00ce08fbc785e", kill_on_drop: false }`
[INFO] [stdout] 045dcc5fe8f47f69c487a6d2878f38d515b2564bc0906a075ca00ce08fbc785e