[INFO] cloning repository https://github.com/vidmartin/mila-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vidmartin/mila-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvidmartin%2Fmila-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvidmartin%2Fmila-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d36eacecfdcfeda0a2727fa5883afa0e4c6b6b13
[INFO] checking vidmartin/mila-compiler against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvidmartin%2Fmila-compiler" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vidmartin/mila-compiler
[INFO] finished tweaking git repo https://github.com/vidmartin/mila-compiler
[INFO] tweaked toml for git repo https://github.com/vidmartin/mila-compiler written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vidmartin/mila-compiler on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vidmartin/mila-compiler 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v160.0.2
[INFO] [stderr]   Downloaded clap_derive v4.3.1
[INFO] [stderr]   Downloaded clap v4.3.1
[INFO] [stderr]   Downloaded clap_builder v4.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf8750273b285dd0cf450508d4640420a817ce8c2115035dad9a2f0b8462f831
[INFO] running `Command { std: "docker" "start" "-a" "cf8750273b285dd0cf450508d4640420a817ce8c2115035dad9a2f0b8462f831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf8750273b285dd0cf450508d4640420a817ce8c2115035dad9a2f0b8462f831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf8750273b285dd0cf450508d4640420a817ce8c2115035dad9a2f0b8462f831", kill_on_drop: false }`
[INFO] [stdout] cf8750273b285dd0cf450508d4640420a817ce8c2115035dad9a2f0b8462f831
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5add76664e35f97b433a8d48f98d7fbba01635dfbc7f88f978cf7d146ef4820c
[INFO] running `Command { std: "docker" "start" "-a" "5add76664e35f97b433a8d48f98d7fbba01635dfbc7f88f978cf7d146ef4820c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]     Checking is-terminal v0.4.7
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.1
[INFO] [stderr]    Compiling clap_derive v4.3.1
[INFO] [stderr]    Compiling llvm-sys v160.0.2
[INFO] [stderr]     Checking clap v4.3.1
[INFO] [stderr]     Checking mila v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `expected` and `gotten` are never read
[INFO] [stdout]  --> src/syn.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Expected { expected: Token, gotten: Token },
[INFO] [stdout]   |     --------   ^^^^^^^^         ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gotten` is never read
[INFO] [stdout]  --> src/syn.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ExpectedIdentifier { gotten: Token },
[INFO] [stdout]   |     ------------------   ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gotten` is never read
[INFO] [stdout]   --> src/syn.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ExpectedIntLiteral { gotten: Token },
[INFO] [stdout]    |     ------------------   ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gotten` is never read
[INFO] [stdout]   --> src/syn.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ExpectedStrLiteral { gotten: Token },
[INFO] [stdout]    |     ------------------   ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/syn.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Unexpected(Token),
[INFO] [stdout]    |     ---------- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Unexpected(Token),
[INFO] [stdout] 12 +     Unexpected(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/gen.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |     UndefinedSymbol(String),
[INFO] [stdout]    |     --------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 -     UndefinedSymbol(String),
[INFO] [stdout] 22 +     UndefinedSymbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/gen.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 28 |     NotImplemented(String),
[INFO] [stdout]    |     -------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 -     NotImplemented(String),
[INFO] [stdout] 28 +     NotImplemented(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/gen.rs:710:53
[INFO] [stdout]     |
[INFO] [stdout] 710 |             let cstr = std::ffi::CString::new(string.clone()).map_err(|_| GenError::InvalidEncoding.panic_or_dont())?;
[INFO] [stdout]     |                                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `expected` and `gotten` are never read
[INFO] [stdout]  --> src/syn.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Expected { expected: Token, gotten: Token },
[INFO] [stdout]   |     --------   ^^^^^^^^         ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gotten` is never read
[INFO] [stdout]  --> src/syn.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ExpectedIdentifier { gotten: Token },
[INFO] [stdout]   |     ------------------   ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gotten` is never read
[INFO] [stdout]   --> src/syn.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ExpectedIntLiteral { gotten: Token },
[INFO] [stdout]    |     ------------------   ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gotten` is never read
[INFO] [stdout]   --> src/syn.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ExpectedStrLiteral { gotten: Token },
[INFO] [stdout]    |     ------------------   ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/syn.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Unexpected(Token),
[INFO] [stdout]    |     ---------- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Unexpected(Token),
[INFO] [stdout] 12 +     Unexpected(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/gen.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |     UndefinedSymbol(String),
[INFO] [stdout]    |     --------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 -     UndefinedSymbol(String),
[INFO] [stdout] 22 +     UndefinedSymbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/gen.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 28 |     NotImplemented(String),
[INFO] [stdout]    |     -------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 -     NotImplemented(String),
[INFO] [stdout] 28 +     NotImplemented(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/gen.rs:710:53
[INFO] [stdout]     |
[INFO] [stdout] 710 |             let cstr = std::ffi::CString::new(string.clone()).map_err(|_| GenError::InvalidEncoding.panic_or_dont())?;
[INFO] [stdout]     |                                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.50s
[INFO] running `Command { std: "docker" "inspect" "5add76664e35f97b433a8d48f98d7fbba01635dfbc7f88f978cf7d146ef4820c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5add76664e35f97b433a8d48f98d7fbba01635dfbc7f88f978cf7d146ef4820c", kill_on_drop: false }`
[INFO] [stdout] 5add76664e35f97b433a8d48f98d7fbba01635dfbc7f88f978cf7d146ef4820c
