[INFO] fetching crate async-lock 1.1.4...
[INFO] checking async-lock-1.1.4 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585
[INFO] extracting crate async-lock 1.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async-lock 1.1.4 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-lock 1.1.4
[INFO] finished tweaking crates.io crate async-lock 1.1.4
[INFO] tweaked toml for crates.io crate async-lock 1.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate async-lock 1.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 498681ecf2a6a08143c01e2fb0a19b881142bb9b8f44a551676628b36f1e2c92
[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" "498681ecf2a6a08143c01e2fb0a19b881142bb9b8f44a551676628b36f1e2c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "498681ecf2a6a08143c01e2fb0a19b881142bb9b8f44a551676628b36f1e2c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "498681ecf2a6a08143c01e2fb0a19b881142bb9b8f44a551676628b36f1e2c92", kill_on_drop: false }`
[INFO] [stdout] 498681ecf2a6a08143c01e2fb0a19b881142bb9b8f44a551676628b36f1e2c92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2604342b7baaa6c06181e7307424564c7a260254280da5e0a61fff779992a0a
[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" "f2604342b7baaa6c06181e7307424564c7a260254280da5e0a61fff779992a0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking async-lock v1.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.48s
[INFO] running `Command { std: "docker" "inspect" "f2604342b7baaa6c06181e7307424564c7a260254280da5e0a61fff779992a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2604342b7baaa6c06181e7307424564c7a260254280da5e0a61fff779992a0a", kill_on_drop: false }`
[INFO] [stdout] f2604342b7baaa6c06181e7307424564c7a260254280da5e0a61fff779992a0a