[INFO] fetching crate variant_counter 0.4.0...
[INFO] building variant_counter-0.4.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate variant_counter 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate variant_counter 0.4.0
[INFO] finished tweaking crates.io crate variant_counter 0.4.0
[INFO] tweaked toml for crates.io crate variant_counter 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate variant_counter 0.4.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate variant_counter 0.4.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 682c3cd59e2d680ebc2c132aed7875385d741cb85b54335c6017c8bc044533ca
[INFO] running `Command { std: "docker" "start" "-a" "682c3cd59e2d680ebc2c132aed7875385d741cb85b54335c6017c8bc044533ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "682c3cd59e2d680ebc2c132aed7875385d741cb85b54335c6017c8bc044533ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "682c3cd59e2d680ebc2c132aed7875385d741cb85b54335c6017c8bc044533ca", kill_on_drop: false }`
[INFO] [stdout] 682c3cd59e2d680ebc2c132aed7875385d741cb85b54335c6017c8bc044533ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b922bcf776f42599dd35ec1f5f2f5d859c84edc841de6705fb50ab34215948cd
[INFO] running `Command { std: "docker" "start" "-a" "b922bcf776f42599dd35ec1f5f2f5d859c84edc841de6705fb50ab34215948cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling variant_counter_derived v0.4.0
[INFO] [stderr]    Compiling variant_counter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "b922bcf776f42599dd35ec1f5f2f5d859c84edc841de6705fb50ab34215948cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b922bcf776f42599dd35ec1f5f2f5d859c84edc841de6705fb50ab34215948cd", kill_on_drop: false }`
[INFO] [stdout] b922bcf776f42599dd35ec1f5f2f5d859c84edc841de6705fb50ab34215948cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6844766e79df8c3f09ee3b2413964e716a48ad6ed73a4e9ff604d46abafc9f1
[INFO] running `Command { std: "docker" "start" "-a" "f6844766e79df8c3f09ee3b2413964e716a48ad6ed73a4e9ff604d46abafc9f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling variant_counter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> examples/platform.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(VariantCount)]
[INFO] [stdout]   |          ------------ the lifetime is named here
[INFO] [stdout] 5 | enum Platform {
[INFO] [stdout]   |      ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Platform<'a> {
[INFO] [stdout]   |              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "f6844766e79df8c3f09ee3b2413964e716a48ad6ed73a4e9ff604d46abafc9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6844766e79df8c3f09ee3b2413964e716a48ad6ed73a4e9ff604d46abafc9f1", kill_on_drop: false }`
[INFO] [stdout] f6844766e79df8c3f09ee3b2413964e716a48ad6ed73a4e9ff604d46abafc9f1