[INFO] fetching crate blocking 0.5.1...
[INFO] checking blocking-0.5.1 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate blocking 0.5.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate blocking 0.5.1 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blocking 0.5.1
[INFO] finished tweaking crates.io crate blocking 0.5.1
[INFO] tweaked toml for crates.io crate blocking 0.5.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate blocking 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking v1.0.5
[INFO] [stderr]   Downloaded event-listener v2.2.0
[INFO] [stderr]   Downloaded async-channel v1.1.1
[INFO] [stderr]   Downloaded futures-lite v0.1.7
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b337830674f046036a6ac1a6c26820de12bfa638ab995232534d4e9f54b7955
[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" "2b337830674f046036a6ac1a6c26820de12bfa638ab995232534d4e9f54b7955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b337830674f046036a6ac1a6c26820de12bfa638ab995232534d4e9f54b7955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b337830674f046036a6ac1a6c26820de12bfa638ab995232534d4e9f54b7955", kill_on_drop: false }`
[INFO] [stdout] 2b337830674f046036a6ac1a6c26820de12bfa638ab995232534d4e9f54b7955
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8526793f49d241ebaa4419ec2aa64001059e26268c47ef9ca988ae72ed62f247
[INFO] running `Command { std: "docker" "start" "-a" "8526793f49d241ebaa4419ec2aa64001059e26268c47ef9ca988ae72ed62f247", kill_on_drop: false }`
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking event-listener v2.2.0
[INFO] [stderr]     Checking parking v1.0.5
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]     Checking async-channel v1.1.1
[INFO] [stderr]     Checking futures-lite v0.1.7
[INFO] [stderr]     Checking blocking v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "8526793f49d241ebaa4419ec2aa64001059e26268c47ef9ca988ae72ed62f247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8526793f49d241ebaa4419ec2aa64001059e26268c47ef9ca988ae72ed62f247", kill_on_drop: false }`
[INFO] [stdout] 8526793f49d241ebaa4419ec2aa64001059e26268c47ef9ca988ae72ed62f247