[INFO] cloning repository https://github.com/WasabiFan/rust-analyzer-proc-macro-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WasabiFan/rust-analyzer-proc-macro-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWasabiFan%2Frust-analyzer-proc-macro-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWasabiFan%2Frust-analyzer-proc-macro-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1ea71b608de584413a9b783add6e987ce6da945
[INFO] checking WasabiFan/rust-analyzer-proc-macro-repro against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWasabiFan%2Frust-analyzer-proc-macro-repro" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WasabiFan/rust-analyzer-proc-macro-repro on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WasabiFan/rust-analyzer-proc-macro-repro
[INFO] finished tweaking git repo https://github.com/WasabiFan/rust-analyzer-proc-macro-repro
[INFO] tweaked toml for git repo https://github.com/WasabiFan/rust-analyzer-proc-macro-repro written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/WasabiFan/rust-analyzer-proc-macro-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 945559f54d73d421cfb6a4bf15cc4cea51b9ef19bc8321116c9e4ea5ea2e88f4
[INFO] running `Command { std: "docker" "start" "-a" "945559f54d73d421cfb6a4bf15cc4cea51b9ef19bc8321116c9e4ea5ea2e88f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "945559f54d73d421cfb6a4bf15cc4cea51b9ef19bc8321116c9e4ea5ea2e88f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "945559f54d73d421cfb6a4bf15cc4cea51b9ef19bc8321116c9e4ea5ea2e88f4", kill_on_drop: false }`
[INFO] [stdout] 945559f54d73d421cfb6a4bf15cc4cea51b9ef19bc8321116c9e4ea5ea2e88f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a78a4b6e9490c184ae3ac26ce46c66b64b40072ea64c3f33d4768888c36b475
[INFO] running `Command { std: "docker" "start" "-a" "5a78a4b6e9490c184ae3ac26ce46c66b64b40072ea64c3f33d4768888c36b475", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking fragile v1.0.0
[INFO] [stderr]     Checking tmp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]    Compiling mockall_derive v0.9.0
[INFO] [stderr]     Checking mockall v0.9.0
[INFO] [stdout] warning: unused variable: `bar`
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let bar = MockBarImpl::new();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_bar`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.45s
[INFO] running `Command { std: "docker" "inspect" "5a78a4b6e9490c184ae3ac26ce46c66b64b40072ea64c3f33d4768888c36b475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a78a4b6e9490c184ae3ac26ce46c66b64b40072ea64c3f33d4768888c36b475", kill_on_drop: false }`
[INFO] [stdout] 5a78a4b6e9490c184ae3ac26ce46c66b64b40072ea64c3f33d4768888c36b475