[INFO] fetching crate macroex 0.2.0...
[INFO] checking macroex-0.2.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate macroex 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate macroex 0.2.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate macroex 0.2.0
[INFO] finished tweaking crates.io crate macroex 0.2.0
[INFO] tweaked toml for crates.io crate macroex 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macroex-derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 475a82f23bc295763f364b21b47feec92901ff4d3b9955382eca6fb1eb4a2740
[INFO] running `Command { std: "docker" "start" "-a" "475a82f23bc295763f364b21b47feec92901ff4d3b9955382eca6fb1eb4a2740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "475a82f23bc295763f364b21b47feec92901ff4d3b9955382eca6fb1eb4a2740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475a82f23bc295763f364b21b47feec92901ff4d3b9955382eca6fb1eb4a2740", kill_on_drop: false }`
[INFO] [stdout] 475a82f23bc295763f364b21b47feec92901ff4d3b9955382eca6fb1eb4a2740
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1a633f827abe3845714d47ff348d0aad21b866bf9dfeebb4a41a9353e45a37c
[INFO] running `Command { std: "docker" "start" "-a" "a1a633f827abe3845714d47ff348d0aad21b866bf9dfeebb4a41a9353e45a37c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]     Checking litrs v0.4.1
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling macroex-derive v0.2.0
[INFO] [stderr]     Checking thiserror v1.0.63
[INFO] [stderr]     Checking macroex v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `ExpectCount`, `EncounteredNoneDelim`, `ExpectedOneMatch`, `ExpectedOneOf`, `ExpectedTupleOfLength`, and `IsPunct` are never constructed
[INFO] [stdout]   --> src/error.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub(crate) enum ErrorType {
[INFO] [stdout]    |                 --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     ExpectCount(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     EncounteredNoneDelim,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     ExpectedOneMatch(TokenTree),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     ExpectedOneOf(&'static [&'static str], String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 44 |     #[error("Expected tuple of length {}, found {}.", 0, 1)]
[INFO] [stdout] 45 |     ExpectedTupleOfLength(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     IsPunct,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorType` 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: struct `ArraySyntax` is never constructed
[INFO] [stdout]   --> src/totokens.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct ArraySyntax<T>(pub T);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArraySyntax` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ExpectCount`, `EncounteredNoneDelim`, `ExpectedOneMatch`, `ExpectedOneOf`, `ExpectedTupleOfLength`, and `IsPunct` are never constructed
[INFO] [stdout]   --> src/error.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub(crate) enum ErrorType {
[INFO] [stdout]    |                 --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     ExpectCount(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     EncounteredNoneDelim,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     ExpectedOneMatch(TokenTree),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     ExpectedOneOf(&'static [&'static str], String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 44 |     #[error("Expected tuple of length {}, found {}.", 0, 1)]
[INFO] [stdout] 45 |     ExpectedTupleOfLength(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     IsPunct,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorType` 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: struct `ArraySyntax` is never constructed
[INFO] [stdout]   --> src/totokens.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct ArraySyntax<T>(pub T);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArraySyntax` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `Command { std: "docker" "inspect" "a1a633f827abe3845714d47ff348d0aad21b866bf9dfeebb4a41a9353e45a37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a633f827abe3845714d47ff348d0aad21b866bf9dfeebb4a41a9353e45a37c", kill_on_drop: false }`
[INFO] [stdout] a1a633f827abe3845714d47ff348d0aad21b866bf9dfeebb4a41a9353e45a37c