[INFO] fetching crate proc_test 0.1.0...
[INFO] testing proc_test-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate proc_test 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate proc_test 0.1.0
[INFO] finished tweaking crates.io crate proc_test 0.1.0
[INFO] tweaked toml for crates.io crate proc_test 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate proc_test 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate proc_test 0.1.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4659094ad6e80a902c4010dd6893f6077053322305e67bab11d45d5a00fe8765
[INFO] running `Command { std: "docker" "start" "-a" "4659094ad6e80a902c4010dd6893f6077053322305e67bab11d45d5a00fe8765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4659094ad6e80a902c4010dd6893f6077053322305e67bab11d45d5a00fe8765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4659094ad6e80a902c4010dd6893f6077053322305e67bab11d45d5a00fe8765", kill_on_drop: false }`
[INFO] [stdout] 4659094ad6e80a902c4010dd6893f6077053322305e67bab11d45d5a00fe8765
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1db0b2b173b672937b72eaf926f8b7412ee83e0713769bca4a7a92b7bbdf63d7
[INFO] running `Command { std: "docker" "start" "-a" "1db0b2b173b672937b72eaf926f8b7412ee83e0713769bca4a7a92b7bbdf63d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Literal` and `TokenTree`
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro::{TokenStream, TokenTree, Literal};
[INFO] [stdout]   |                               ^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut tokens = attr.into_iter();
[INFO] [stdout]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/lib.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn cfg2(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]   |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut tokens = attr.into_iter();
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "1db0b2b173b672937b72eaf926f8b7412ee83e0713769bca4a7a92b7bbdf63d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db0b2b173b672937b72eaf926f8b7412ee83e0713769bca4a7a92b7bbdf63d7", kill_on_drop: false }`
[INFO] [stdout] 1db0b2b173b672937b72eaf926f8b7412ee83e0713769bca4a7a92b7bbdf63d7
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef4c66685036721bbbf90bc52b098e341b5ebb4108335be89ebeb6730ad774d5
[INFO] running `Command { std: "docker" "start" "-a" "ef4c66685036721bbbf90bc52b098e341b5ebb4108335be89ebeb6730ad774d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Literal` and `TokenTree`
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro::{TokenStream, TokenTree, Literal};
[INFO] [stdout]   |                               ^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut tokens = attr.into_iter();
[INFO] [stdout]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/lib.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn cfg2(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]   |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut tokens = attr.into_iter();
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Literal` and `TokenTree`
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro::{TokenStream, TokenTree, Literal};
[INFO] [stdout]   |                               ^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut tokens = attr.into_iter();
[INFO] [stdout]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/lib.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn cfg2(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]   |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut tokens = attr.into_iter();
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "ef4c66685036721bbbf90bc52b098e341b5ebb4108335be89ebeb6730ad774d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4c66685036721bbbf90bc52b098e341b5ebb4108335be89ebeb6730ad774d5", kill_on_drop: false }`
[INFO] [stdout] ef4c66685036721bbbf90bc52b098e341b5ebb4108335be89ebeb6730ad774d5
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f99c7d8823c679046db76c11ec919c55da11f8671e05ef6713f66f99f8145d31
[INFO] running `Command { std: "docker" "start" "-a" "f99c7d8823c679046db76c11ec919c55da11f8671e05ef6713f66f99f8145d31", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Literal` and `TokenTree`
[INFO] [stderr]  --> src/lib.rs:1:31
[INFO] [stderr]   |
[INFO] [stderr] 1 | use proc_macro::{TokenStream, TokenTree, Literal};
[INFO] [stderr]   |                               ^^^^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]  --> src/lib.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut tokens = attr.into_iter();
[INFO] [stderr]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]  --> src/lib.rs:4:32
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn cfg2(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stderr]   |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/lib.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut tokens = attr.into_iter();
[INFO] [stderr]   |         ----^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `proc_test` (lib) generated 4 warnings (run `cargo fix --lib -p proc_test` to apply 2 suggestions)
[INFO] [stderr] warning: `proc_test` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proc_test-85a6e0bf1f425850)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proc_test
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f99c7d8823c679046db76c11ec919c55da11f8671e05ef6713f66f99f8145d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99c7d8823c679046db76c11ec919c55da11f8671e05ef6713f66f99f8145d31", kill_on_drop: false }`
[INFO] [stdout] f99c7d8823c679046db76c11ec919c55da11f8671e05ef6713f66f99f8145d31