[INFO] fetching crate proc-macro-crate 1.0.0...
[INFO] checking proc-macro-crate-1.0.0 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate proc-macro-crate 1.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate proc-macro-crate 1.0.0 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proc-macro-crate 1.0.0
[INFO] finished tweaking crates.io crate proc-macro-crate 1.0.0
[INFO] tweaked toml for crates.io crate proc-macro-crate 1.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0a57106aec455448852bfb5f66e3c6c5dd822a7ad71ac2ab165b12b0f6319d6
[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" "d0a57106aec455448852bfb5f66e3c6c5dd822a7ad71ac2ab165b12b0f6319d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a57106aec455448852bfb5f66e3c6c5dd822a7ad71ac2ab165b12b0f6319d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a57106aec455448852bfb5f66e3c6c5dd822a7ad71ac2ab165b12b0f6319d6", kill_on_drop: false }`
[INFO] [stdout] d0a57106aec455448852bfb5f66e3c6c5dd822a7ad71ac2ab165b12b0f6319d6
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02f40aa2e85c008b9cde748d0dad3445520914b8790c9b5d3fca73564c313e5a
[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" "02f40aa2e85c008b9cde748d0dad3445520914b8790c9b5d3fca73564c313e5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking syn v1.0.70
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking proc-macro-crate v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.24s
[INFO] running `Command { std: "docker" "inspect" "02f40aa2e85c008b9cde748d0dad3445520914b8790c9b5d3fca73564c313e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f40aa2e85c008b9cde748d0dad3445520914b8790c9b5d3fca73564c313e5a", kill_on_drop: false }`
[INFO] [stdout] 02f40aa2e85c008b9cde748d0dad3445520914b8790c9b5d3fca73564c313e5a