[INFO] fetching crate reference-counted-singleton 0.1.1...
[INFO] checking reference-counted-singleton-0.1.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate reference-counted-singleton 0.1.1 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate reference-counted-singleton 0.1.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reference-counted-singleton 0.1.1
[INFO] finished tweaking crates.io crate reference-counted-singleton 0.1.1
[INFO] tweaked toml for crates.io crate reference-counted-singleton 0.1.1 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7ef5cb84859e00fa6ce86cd6ead2fd7d6b08463c76ba3ba0a725e89801ac584
[INFO] running `Command { std: "docker" "start" "-a" "a7ef5cb84859e00fa6ce86cd6ead2fd7d6b08463c76ba3ba0a725e89801ac584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7ef5cb84859e00fa6ce86cd6ead2fd7d6b08463c76ba3ba0a725e89801ac584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ef5cb84859e00fa6ce86cd6ead2fd7d6b08463c76ba3ba0a725e89801ac584", kill_on_drop: false }`
[INFO] [stdout] a7ef5cb84859e00fa6ce86cd6ead2fd7d6b08463c76ba3ba0a725e89801ac584
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 333c7b2315bb94db8eef4bb5e97dbf190715f268181b154722edde78423fea24
[INFO] running `Command { std: "docker" "start" "-a" "333c7b2315bb94db8eef4bb5e97dbf190715f268181b154722edde78423fea24", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking reference-counted-singleton v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]     Checking serial_test v0.5.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.71s
[INFO] running `Command { std: "docker" "inspect" "333c7b2315bb94db8eef4bb5e97dbf190715f268181b154722edde78423fea24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333c7b2315bb94db8eef4bb5e97dbf190715f268181b154722edde78423fea24", kill_on_drop: false }`
[INFO] [stdout] 333c7b2315bb94db8eef4bb5e97dbf190715f268181b154722edde78423fea24