[INFO] fetching crate cps 0.2.3...
[INFO] checking cps-0.2.3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate cps 0.2.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cps 0.2.3 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 crates.io crate cps 0.2.3
[INFO] finished tweaking crates.io crate cps 0.2.3
[INFO] tweaked toml for crates.io crate cps 0.2.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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 6 packages to latest compatible versions
[INFO] [stderr]       Adding litrs v0.2.3 (latest: v0.4.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded litrs v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7bea50cb3d65c9c9246a78a21ba49810cebf07ebdd58aada370c79d4ab338341
[INFO] running `Command { std: "docker" "start" "-a" "7bea50cb3d65c9c9246a78a21ba49810cebf07ebdd58aada370c79d4ab338341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bea50cb3d65c9c9246a78a21ba49810cebf07ebdd58aada370c79d4ab338341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bea50cb3d65c9c9246a78a21ba49810cebf07ebdd58aada370c79d4ab338341", kill_on_drop: false }`
[INFO] [stdout] 7bea50cb3d65c9c9246a78a21ba49810cebf07ebdd58aada370c79d4ab338341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 893f7a46c2d632a532e8b42385f09782ce81b89b0a59c9a41d9bacdba431bd92
[INFO] running `Command { std: "docker" "start" "-a" "893f7a46c2d632a532e8b42385f09782ce81b89b0a59c9a41d9bacdba431bd92", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking litrs v0.2.3
[INFO] [stderr]     Checking cps v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `build_output_clone` is never used
[INFO] [stdout]    --> src/parse_macro_decl.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 133 | impl MacroVariableIdentifier {
[INFO] [stdout]     | ---------------------------- method in this implementation
[INFO] [stdout] 134 |     pub fn build_output_clone(&self) -> TokenStream {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren` is never read
[INFO] [stdout]    --> src/parse_macro_decl.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub struct MacroRepetition {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 219 |     pub dollar_sign: Token![$],
[INFO] [stdout] 220 |     pub paren: Paren,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MacroRepetition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `let_token`, `equals_token`, and `in_token` are never read
[INFO] [stdout]    --> src/parse_macro_decl.rs:373:9
[INFO] [stdout]     |
[INFO] [stdout] 372 | pub struct LetBinding {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 373 |     pub let_token: Token![let],
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 374 |     pub pattern: MacroMatch, // Single macro match, have to use braces for more interesting matches
[INFO] [stdout] 375 |     pub equals_token: Token![=],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 378 |     pub in_token: Token![in],
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LetBinding` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `build_output_clone` is never used
[INFO] [stdout]    --> src/parse_macro_decl.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 133 | impl MacroVariableIdentifier {
[INFO] [stdout]     | ---------------------------- method in this implementation
[INFO] [stdout] 134 |     pub fn build_output_clone(&self) -> TokenStream {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren` is never read
[INFO] [stdout]    --> src/parse_macro_decl.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub struct MacroRepetition {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 219 |     pub dollar_sign: Token![$],
[INFO] [stdout] 220 |     pub paren: Paren,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MacroRepetition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `let_token`, `equals_token`, and `in_token` are never read
[INFO] [stdout]    --> src/parse_macro_decl.rs:373:9
[INFO] [stdout]     |
[INFO] [stdout] 372 | pub struct LetBinding {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 373 |     pub let_token: Token![let],
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 374 |     pub pattern: MacroMatch, // Single macro match, have to use braces for more interesting matches
[INFO] [stdout] 375 |     pub equals_token: Token![=],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 378 |     pub in_token: Token![in],
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LetBinding` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `build_output_clone` is never used
[INFO] [stdout]    --> src/parse_macro_decl.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 133 | impl MacroVariableIdentifier {
[INFO] [stdout]     | ---------------------------- method in this implementation
[INFO] [stdout] 134 |     pub fn build_output_clone(&self) -> TokenStream {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren` is never read
[INFO] [stdout]    --> src/parse_macro_decl.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub struct MacroRepetition {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 219 |     pub dollar_sign: Token![$],
[INFO] [stdout] 220 |     pub paren: Paren,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MacroRepetition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `let_token`, `equals_token`, and `in_token` are never read
[INFO] [stdout]    --> src/parse_macro_decl.rs:373:9
[INFO] [stdout]     |
[INFO] [stdout] 372 | pub struct LetBinding {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 373 |     pub let_token: Token![let],
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 374 |     pub pattern: MacroMatch, // Single macro match, have to use braces for more interesting matches
[INFO] [stdout] 375 |     pub equals_token: Token![=],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 378 |     pub in_token: Token![in],
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LetBinding` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `twice_error_message`
[INFO] [stdout]  --> tests/error_message_check.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | macro_rules! twice_error_message {
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `example`
[INFO] [stdout]  --> tests/monobinding_tests.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | macro_rules! example {
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.61s
[INFO] running `Command { std: "docker" "inspect" "893f7a46c2d632a532e8b42385f09782ce81b89b0a59c9a41d9bacdba431bd92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "893f7a46c2d632a532e8b42385f09782ce81b89b0a59c9a41d9bacdba431bd92", kill_on_drop: false }`
[INFO] [stdout] 893f7a46c2d632a532e8b42385f09782ce81b89b0a59c9a41d9bacdba431bd92