[INFO] fetching crate rayon-macro 0.2.0...
[INFO] checking rayon-macro-0.2.0 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate rayon-macro 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rayon-macro 0.2.0 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rayon-macro 0.2.0
[INFO] finished tweaking crates.io crate rayon-macro 0.2.0
[INFO] tweaked toml for crates.io crate rayon-macro 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdbd84093beb5249baf4904855d4d7eab98b9f750d364988d644ec1fbfa3ed4f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fdbd84093beb5249baf4904855d4d7eab98b9f750d364988d644ec1fbfa3ed4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdbd84093beb5249baf4904855d4d7eab98b9f750d364988d644ec1fbfa3ed4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdbd84093beb5249baf4904855d4d7eab98b9f750d364988d644ec1fbfa3ed4f", kill_on_drop: false }`
[INFO] [stdout] fdbd84093beb5249baf4904855d4d7eab98b9f750d364988d644ec1fbfa3ed4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 086f569470ac534bf99e85c055c044dd471cffb6db1bc7a32e160173e5f75f57
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "086f569470ac534bf99e85c055c044dd471cffb6db1bc7a32e160173e5f75f57", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]     Checking proc-macro2 v1.0.26
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking proc-macro-crate v0.1.5
[INFO] [stderr]     Checking rayon-macro v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> tests/simple.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     parallel!('outer: for i in 0..20 {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: label name `'outer` shadows a label name that is already in scope
[INFO] [stdout]   --> tests/simple.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     parallel!('outer: for i in 0..20 {
[INFO] [stdout]    |               ------ first declared here
[INFO] [stdout] ...
[INFO] [stdout] 22 |         'outer: for _ in 0..10 {
[INFO] [stdout]    |         ^^^^^^ label `'outer` already in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.38s
[INFO] running `Command { std: "docker" "inspect" "086f569470ac534bf99e85c055c044dd471cffb6db1bc7a32e160173e5f75f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086f569470ac534bf99e85c055c044dd471cffb6db1bc7a32e160173e5f75f57", kill_on_drop: false }`
[INFO] [stdout] 086f569470ac534bf99e85c055c044dd471cffb6db1bc7a32e160173e5f75f57