[INFO] fetching crate flake 0.0.1...
[INFO] checking flake-0.0.1 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate flake 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flake 0.0.1 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flake 0.0.1
[INFO] finished tweaking crates.io crate flake 0.0.1
[INFO] tweaked toml for crates.io crate flake 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4fff5eb18acddf0cc3e1bb23688b903f909d811503e85c1489908d365e42b63
[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" "e4fff5eb18acddf0cc3e1bb23688b903f909d811503e85c1489908d365e42b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4fff5eb18acddf0cc3e1bb23688b903f909d811503e85c1489908d365e42b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4fff5eb18acddf0cc3e1bb23688b903f909d811503e85c1489908d365e42b63", kill_on_drop: false }`
[INFO] [stdout] e4fff5eb18acddf0cc3e1bb23688b903f909d811503e85c1489908d365e42b63
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87836cd1848402636c3d187479ec28fd6990ad4939b8aaaf9054741e0a0ce63d
[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" "87836cd1848402636c3d187479ec28fd6990ad4939b8aaaf9054741e0a0ce63d", kill_on_drop: false }`
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking flake v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `TIMESTAMP_MASK`
[INFO] [stdout]  --> src/tests/mod.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const TIMESTAMP_MASK: u64 = 0xFFFFFFFFFFC00000;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "87836cd1848402636c3d187479ec28fd6990ad4939b8aaaf9054741e0a0ce63d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87836cd1848402636c3d187479ec28fd6990ad4939b8aaaf9054741e0a0ce63d", kill_on_drop: false }`
[INFO] [stdout] 87836cd1848402636c3d187479ec28fd6990ad4939b8aaaf9054741e0a0ce63d