[INFO] fetching crate named_fn 0.2.1...
[INFO] checking named_fn-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate named_fn 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate named_fn 0.2.1
[INFO] finished tweaking crates.io crate named_fn 0.2.1
[INFO] tweaked toml for crates.io crate named_fn 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate named_fn 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e93b01d343d2cbe25277edd711ed9cde7c00c39254e40478c35ea4505f7a1054
[INFO] running `Command { std: "docker" "start" "-a" "e93b01d343d2cbe25277edd711ed9cde7c00c39254e40478c35ea4505f7a1054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93b01d343d2cbe25277edd711ed9cde7c00c39254e40478c35ea4505f7a1054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e93b01d343d2cbe25277edd711ed9cde7c00c39254e40478c35ea4505f7a1054", kill_on_drop: false }`
[INFO] [stdout] e93b01d343d2cbe25277edd711ed9cde7c00c39254e40478c35ea4505f7a1054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 232e535875cc4c79e8efe1a2e99e3ecf01712a950571303eb1c12501a2796f01
[INFO] running `Command { std: "docker" "start" "-a" "232e535875cc4c79e8efe1a2e99e3ecf01712a950571303eb1c12501a2796f01", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking named_fn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/lib.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{hint::unreachable_unchecked, ops::Deref};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LifetimeDef` and `parse_quote`
[INFO] [stdout]  --> src/lib.rs:4:59
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...GenericParam, ItemFn, LifetimeDef, Signature, TypeParam, Type, ReturnType, parse_quote_spanned, Pat, parse_quote, Generics};
[INFO] [stdout]   |                          ^^^^^^^^^^^                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/lib.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{hint::unreachable_unchecked, ops::Deref};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LifetimeDef` and `parse_quote`
[INFO] [stdout]  --> src/lib.rs:4:59
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...GenericParam, ItemFn, LifetimeDef, Signature, TypeParam, Type, ReturnType, parse_quote_spanned, Pat, parse_quote, Generics};
[INFO] [stdout]   |                          ^^^^^^^^^^^                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constness`
[INFO] [stdout]   --> src/lib.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 constness,
[INFO] [stdout]    |                 ^^^^^^^^^ help: try ignoring the field: `constness: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asyncness`
[INFO] [stdout]   --> src/lib.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 asyncness,
[INFO] [stdout]    |                 ^^^^^^^^^ help: try ignoring the field: `asyncness: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsafety`
[INFO] [stdout]   --> src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 unsafety,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `unsafety: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abi`
[INFO] [stdout]   --> src/lib.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 abi,
[INFO] [stdout]    |                 ^^^ help: try ignoring the field: `abi: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fn_token`
[INFO] [stdout]   --> src/lib.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 fn_token,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `fn_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren_token`
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 paren_token,
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: try ignoring the field: `paren_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variadic`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 variadic,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `variadic: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constness`
[INFO] [stdout]   --> src/lib.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 constness,
[INFO] [stdout]    |                 ^^^^^^^^^ help: try ignoring the field: `constness: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asyncness`
[INFO] [stdout]   --> src/lib.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 asyncness,
[INFO] [stdout]    |                 ^^^^^^^^^ help: try ignoring the field: `asyncness: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsafety`
[INFO] [stdout]   --> src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 unsafety,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `unsafety: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abi`
[INFO] [stdout]   --> src/lib.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 abi,
[INFO] [stdout]    |                 ^^^ help: try ignoring the field: `abi: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fn_token`
[INFO] [stdout]   --> src/lib.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 fn_token,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `fn_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren_token`
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 paren_token,
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: try ignoring the field: `paren_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variadic`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 variadic,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `variadic: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/lib.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{hint::unreachable_unchecked, ops::Deref};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LifetimeDef` and `parse_quote`
[INFO] [stdout]  --> src/lib.rs:4:59
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...GenericParam, ItemFn, LifetimeDef, Signature, TypeParam, Type, ReturnType, parse_quote_spanned, Pat, parse_quote, Generics};
[INFO] [stdout]   |                          ^^^^^^^^^^^                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constness`
[INFO] [stdout]   --> src/lib.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 constness,
[INFO] [stdout]    |                 ^^^^^^^^^ help: try ignoring the field: `constness: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asyncness`
[INFO] [stdout]   --> src/lib.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 asyncness,
[INFO] [stdout]    |                 ^^^^^^^^^ help: try ignoring the field: `asyncness: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsafety`
[INFO] [stdout]   --> src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 unsafety,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `unsafety: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abi`
[INFO] [stdout]   --> src/lib.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 abi,
[INFO] [stdout]    |                 ^^^ help: try ignoring the field: `abi: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fn_token`
[INFO] [stdout]   --> src/lib.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 fn_token,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `fn_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren_token`
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 paren_token,
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: try ignoring the field: `paren_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variadic`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 variadic,
[INFO] [stdout]    |                 ^^^^^^^^ help: try ignoring the field: `variadic: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> tests/main.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn regular_fn (a: i32, b: Vec<String>) {
[INFO] [stdout]   |                ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]  --> tests/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn regular_fn (a: i32, b: Vec<String>) {
[INFO] [stdout]   |                        ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hi`
[INFO] [stdout]   --> tests/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let hi = (AsStr::new())(&"alex".to_string());
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_hi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `regular_fn` is never used
[INFO] [stdout]  --> tests/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn regular_fn (a: i32, b: Vec<String>) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Test` is never constructed
[INFO] [stdout]   --> tests/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Test {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "232e535875cc4c79e8efe1a2e99e3ecf01712a950571303eb1c12501a2796f01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232e535875cc4c79e8efe1a2e99e3ecf01712a950571303eb1c12501a2796f01", kill_on_drop: false }`
[INFO] [stdout] 232e535875cc4c79e8efe1a2e99e3ecf01712a950571303eb1c12501a2796f01