[INFO] fetching crate flake 0.0.1...
[INFO] checking flake-0.0.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate flake 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate flake 0.0.1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 288d6c1c008fc483ed566a8543490c1aebbe9f9e59da6b372bcdb7b290f455b9
[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" "288d6c1c008fc483ed566a8543490c1aebbe9f9e59da6b372bcdb7b290f455b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "288d6c1c008fc483ed566a8543490c1aebbe9f9e59da6b372bcdb7b290f455b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "288d6c1c008fc483ed566a8543490c1aebbe9f9e59da6b372bcdb7b290f455b9", kill_on_drop: false }`
[INFO] [stdout] 288d6c1c008fc483ed566a8543490c1aebbe9f9e59da6b372bcdb7b290f455b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f3b43db17172ffe0c2cd930dd7643403b8850e030c4d31c3c02fe59f324ad2
[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" "05f3b43db17172ffe0c2cd930dd7643403b8850e030c4d31c3c02fe59f324ad2", kill_on_drop: false }`
[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 0.27s
[INFO] running `Command { std: "docker" "inspect" "05f3b43db17172ffe0c2cd930dd7643403b8850e030c4d31c3c02fe59f324ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f3b43db17172ffe0c2cd930dd7643403b8850e030c4d31c3c02fe59f324ad2", kill_on_drop: false }`
[INFO] [stdout] 05f3b43db17172ffe0c2cd930dd7643403b8850e030c4d31c3c02fe59f324ad2