[INFO] cloning repository https://github.com/0xGlitchbyte/rust2ocaml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xGlitchbyte/rust2ocaml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xGlitchbyte%2Frust2ocaml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xGlitchbyte%2Frust2ocaml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f03ddfa3bf314886540c362190bf090374f1a50
[INFO] checking 0xGlitchbyte/rust2ocaml/8f03ddfa3bf314886540c362190bf090374f1a50 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xGlitchbyte%2Frust2ocaml" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xGlitchbyte/rust2ocaml on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xGlitchbyte/rust2ocaml
[INFO] finished tweaking git repo https://github.com/0xGlitchbyte/rust2ocaml
[INFO] tweaked toml for git repo https://github.com/0xGlitchbyte/rust2ocaml written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0xGlitchbyte/rust2ocaml 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 063f8e7dfe1a3cd38ccc8bb55b4575baca7d5b498dee85ab29c6149f55b2da6f
[INFO] running `Command { std: "docker" "start" "-a" "063f8e7dfe1a3cd38ccc8bb55b4575baca7d5b498dee85ab29c6149f55b2da6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "063f8e7dfe1a3cd38ccc8bb55b4575baca7d5b498dee85ab29c6149f55b2da6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063f8e7dfe1a3cd38ccc8bb55b4575baca7d5b498dee85ab29c6149f55b2da6f", kill_on_drop: false }`
[INFO] [stdout] 063f8e7dfe1a3cd38ccc8bb55b4575baca7d5b498dee85ab29c6149f55b2da6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 607f7038d62d6f0070fece8b62dddf9a28775fd4e3873117714105fc1215038e
[INFO] running `Command { std: "docker" "start" "-a" "607f7038d62d6f0070fece8b62dddf9a28775fd4e3873117714105fc1215038e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.48
[INFO] [stderr]     Checking rust2ocaml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ocaml.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             _ => todo!("{:#?} is not implemented", value.0),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/ocaml.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             syn::ReturnType::Type(_, ty) => SynType(&*ty).into(),
[INFO] [stdout]     |             ---------------------------- matches some of the same values
[INFO] [stdout] 204 |             syn::ReturnType::Default => OCamlType::Unit,
[INFO] [stdout]     |             ------------------------ matches some of the same values
[INFO] [stdout] 205 |             _ => todo!("{:#?} is not implemented", value.0),
[INFO] [stdout]     |             ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ocaml.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             _ => todo!("{:#?} is not implemented", value.0),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/ocaml.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             syn::ReturnType::Type(_, ty) => SynType(&*ty).into(),
[INFO] [stdout]     |             ---------------------------- matches some of the same values
[INFO] [stdout] 204 |             syn::ReturnType::Default => OCamlType::Unit,
[INFO] [stdout]     |             ------------------------ matches some of the same values
[INFO] [stdout] 205 |             _ => todo!("{:#?} is not implemented", value.0),
[INFO] [stdout]     |             ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `As` is never constructed
[INFO] [stdout]    --> src/ocaml.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub enum OCamlUpcast {
[INFO] [stdout]     |          ----------- variant in this enum
[INFO] [stdout] 116 |     As(),
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OCamlUpcast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Element` is never constructed
[INFO] [stdout]    --> src/ocaml.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub enum OCamlPtr {
[INFO] [stdout]     |          -------- variant in this enum
[INFO] [stdout] 121 |     Element(Vec<String>),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OCamlPtr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `ty:` in this pattern is redundant
[INFO] [stdout]    --> src/ocaml.rs:261:17
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 ty: ty,
[INFO] [stdout]     |                 ^^^^^^ help: use shorthand field pattern: `ty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `As` is never constructed
[INFO] [stdout]    --> src/ocaml.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub enum OCamlUpcast {
[INFO] [stdout]     |          ----------- variant in this enum
[INFO] [stdout] 116 |     As(),
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OCamlUpcast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Element` is never constructed
[INFO] [stdout]    --> src/ocaml.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub enum OCamlPtr {
[INFO] [stdout]     |          -------- variant in this enum
[INFO] [stdout] 121 |     Element(Vec<String>),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OCamlPtr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `ty:` in this pattern is redundant
[INFO] [stdout]    --> src/ocaml.rs:261:17
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 ty: ty,
[INFO] [stdout]     |                 ^^^^^^ help: use shorthand field pattern: `ty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `Command { std: "docker" "inspect" "607f7038d62d6f0070fece8b62dddf9a28775fd4e3873117714105fc1215038e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607f7038d62d6f0070fece8b62dddf9a28775fd4e3873117714105fc1215038e", kill_on_drop: false }`
[INFO] [stdout] 607f7038d62d6f0070fece8b62dddf9a28775fd4e3873117714105fc1215038e