[INFO] fetching crate kind-checker 0.1.3...
[INFO] checking kind-checker-0.1.3 against 16d1ffac17ad8b739e32483ac2e65fe7e1804977 for pr-161154-1
[INFO] extracting crate kind-checker 0.1.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate kind-checker 0.1.3
[INFO] finished tweaking crates.io crate kind-checker 0.1.3
[INFO] tweaked toml for crates.io crate kind-checker 0.1.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kind-checker 0.1.3 on toolchain 16d1ffac17ad8b739e32483ac2e65fe7e1804977
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16d1ffac17ad8b739e32483ac2e65fe7e1804977" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16d1ffac17ad8b739e32483ac2e65fe7e1804977" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 86 packages to highest compatible versions
[INFO] [stderr]       Adding hvm v1.0.11 (available: v2.0.22)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16d1ffac17ad8b739e32483ac2e65fe7e1804977" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kind-tree v0.1.3
[INFO] [stderr]   Downloaded highlight_error v0.1.1
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[INFO] [stderr]   Downloaded object v0.40.0
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[INFO] [stderr]   Downloaded kind-span v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6
[INFO] running `Command { std: "docker" "start" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6" "/opt/rustwide/cargo-home/bin/cargo" "+16d1ffac17ad8b739e32483ac2e65fe7e1804977" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6" "/opt/rustwide/cargo-home/bin/cargo" "+16d1ffac17ad8b739e32483ac2e65fe7e1804977" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     UnboundVariable(Context, Range),
[INFO] [stdout]    |     --------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 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] 14 -     UnboundVariable(Context, Range),
[INFO] [stdout] 14 +     UnboundVariable((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     CantInferHole(Context, Range),
[INFO] [stdout]    |     ------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 15 -     CantInferHole(Context, Range),
[INFO] [stdout] 15 +     CantInferHole((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |     CantInferLambda(Context, Range),
[INFO] [stdout]    |     --------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 16 -     CantInferLambda(Context, Range),
[INFO] [stdout] 16 +     CantInferLambda((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InvalidCall(Context, Range),
[INFO] [stdout]    |     ----------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 17 -     InvalidCall(Context, Range),
[INFO] [stdout] 17 +     InvalidCall((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ImpossibleCase(Context, Range, Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     -------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 18 -     ImpossibleCase(Context, Range, Box<Expr>, Box<Expr>),
[INFO] [stdout] 18 +     ImpossibleCase((), Range, Box<Expr>, Box<Expr>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     TooManyArguments(Context, Range),
[INFO] [stdout]    |     ---------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 20 -     TooManyArguments(Context, Range),
[INFO] [stdout] 20 +     TooManyArguments((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     UncoveredPattern(Context, Range, Vec<Box<Expr>>),
[INFO] [stdout]    |     ---------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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 -     UncoveredPattern(Context, Range, Vec<Box<Expr>>),
[INFO] [stdout] 22 +     UncoveredPattern((), Range, Vec<Box<Expr>>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     UnboundVariable(Context, Range),
[INFO] [stdout]    |     --------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 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] 14 -     UnboundVariable(Context, Range),
[INFO] [stdout] 14 +     UnboundVariable((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     CantInferHole(Context, Range),
[INFO] [stdout]    |     ------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 15 -     CantInferHole(Context, Range),
[INFO] [stdout] 15 +     CantInferHole((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |     CantInferLambda(Context, Range),
[INFO] [stdout]    |     --------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 16 -     CantInferLambda(Context, Range),
[INFO] [stdout] 16 +     CantInferLambda((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InvalidCall(Context, Range),
[INFO] [stdout]    |     ----------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 17 -     InvalidCall(Context, Range),
[INFO] [stdout] 17 +     InvalidCall((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ImpossibleCase(Context, Range, Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     -------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 18 -     ImpossibleCase(Context, Range, Box<Expr>, Box<Expr>),
[INFO] [stdout] 18 +     ImpossibleCase((), Range, Box<Expr>, Box<Expr>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     TooManyArguments(Context, Range),
[INFO] [stdout]    |     ---------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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] 20 -     TooManyArguments(Context, Range),
[INFO] [stdout] 20 +     TooManyArguments((), Range),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/diagnostic.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     UncoveredPattern(Context, Range, Vec<Box<Expr>>),
[INFO] [stdout]    |     ---------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDiagnostic` 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 -     UncoveredPattern(Context, Range, Vec<Box<Expr>>),
[INFO] [stdout] 22 +     UncoveredPattern((), Range, Vec<Box<Expr>>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.21s
[INFO] running `Command { std: "docker" "inspect" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6", kill_on_drop: false }`
[INFO] [stdout] 5803f34b204b5c82c7b141721d8314168cdea75137aaa15148414bcfa84ec7a6
