[INFO] fetching crate variant-map 0.1.1...
[INFO] checking variant-map-0.1.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate variant-map 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate variant-map 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate variant-map 0.1.1
[INFO] tweaked toml for crates.io crate variant-map 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate variant-map 0.1.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded variant-map-derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9a783c5f523e26f1bffa23be2a90852aeba0f58b6e06d622425b5fe9dbae59f
[INFO] running `Command { std: "docker" "start" "-a" "b9a783c5f523e26f1bffa23be2a90852aeba0f58b6e06d622425b5fe9dbae59f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9a783c5f523e26f1bffa23be2a90852aeba0f58b6e06d622425b5fe9dbae59f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a783c5f523e26f1bffa23be2a90852aeba0f58b6e06d622425b5fe9dbae59f", kill_on_drop: false }`
[INFO] [stdout] b9a783c5f523e26f1bffa23be2a90852aeba0f58b6e06d622425b5fe9dbae59f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62639495a48dd82e956cf0fd2369b2aad2251c0271ed2aa3d9be4ffc43e0b9c2
[INFO] running `Command { std: "docker" "start" "-a" "62639495a48dd82e956cf0fd2369b2aad2251c0271ed2aa3d9be4ffc43e0b9c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking variant-map v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> tests/struct_tests.rs:75:43
[INFO] [stdout]    |
[INFO] [stdout] 75 |     struct MyStructVisitor<T>(PhantomData<(T)>);
[INFO] [stdout]    |                                           ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -     struct MyStructVisitor<T>(PhantomData<(T)>);
[INFO] [stdout] 75 +     struct MyStructVisitor<T>(PhantomData<T>);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> tests/struct_tests.rs:75:43
[INFO] [stdout]    |
[INFO] [stdout] 75 |     struct MyStructVisitor<T>(PhantomData<(T)>);
[INFO] [stdout]    |                                           ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -     struct MyStructVisitor<T>(PhantomData<(T)>);
[INFO] [stdout] 75 +     struct MyStructVisitor<T>(PhantomData<T>);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.88s
[INFO] running `Command { std: "docker" "inspect" "62639495a48dd82e956cf0fd2369b2aad2251c0271ed2aa3d9be4ffc43e0b9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62639495a48dd82e956cf0fd2369b2aad2251c0271ed2aa3d9be4ffc43e0b9c2", kill_on_drop: false }`
[INFO] [stdout] 62639495a48dd82e956cf0fd2369b2aad2251c0271ed2aa3d9be4ffc43e0b9c2