[INFO] fetching crate salty 0.1.0-alpha.1...
[INFO] checking salty-0.1.0-alpha.1 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate salty 0.1.0-alpha.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate salty 0.1.0-alpha.1 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate salty 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate salty 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate salty 0.1.0-alpha.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded heapless-bytes v0.1.0
[INFO] [stderr]   Downloaded cosey v0.1.0-alpha.0
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", 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] 7e12b934d2848dd42539d9e2991deac237b28e9cb3ef5458acfe463a5c81e6ff
[INFO] running `Command { std: "docker" "start" "-a" "7e12b934d2848dd42539d9e2991deac237b28e9cb3ef5458acfe463a5c81e6ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e12b934d2848dd42539d9e2991deac237b28e9cb3ef5458acfe463a5c81e6ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e12b934d2848dd42539d9e2991deac237b28e9cb3ef5458acfe463a5c81e6ff", kill_on_drop: false }`
[INFO] [stdout] 7e12b934d2848dd42539d9e2991deac237b28e9cb3ef5458acfe463a5c81e6ff
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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] 7955de9696b8ee758765aec739c3f44dd6ab02ef13d3c372ae7eebbf9fc553fc
[INFO] running `Command { std: "docker" "start" "-a" "7955de9696b8ee758765aec739c3f44dd6ab02ef13d3c372ae7eebbf9fc553fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling salty v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]    Compiling hex-literal-impl v0.2.2
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "7955de9696b8ee758765aec739c3f44dd6ab02ef13d3c372ae7eebbf9fc553fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7955de9696b8ee758765aec739c3f44dd6ab02ef13d3c372ae7eebbf9fc553fc", kill_on_drop: false }`
[INFO] [stdout] 7955de9696b8ee758765aec739c3f44dd6ab02ef13d3c372ae7eebbf9fc553fc