[INFO] fetching crate infer 0.3.1...
[INFO] checking infer-0.3.1 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate infer 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate infer 0.3.1 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 infer 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate infer 0.3.1
[INFO] tweaked toml for crates.io crate infer 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate infer 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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: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] 9fb477a6bec143224e621967b1454f45959ba9c6a2d4d842e98d634386db6b5d
[INFO] running `Command { std: "docker" "start" "-a" "9fb477a6bec143224e621967b1454f45959ba9c6a2d4d842e98d634386db6b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fb477a6bec143224e621967b1454f45959ba9c6a2d4d842e98d634386db6b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fb477a6bec143224e621967b1454f45959ba9c6a2d4d842e98d634386db6b5d", kill_on_drop: false }`
[INFO] [stdout] 9fb477a6bec143224e621967b1454f45959ba9c6a2d4d842e98d634386db6b5d
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a12e45ace0d4fbc084b9619041e2f3a0e31b143e59bc7db70aebd86fae800acc
[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" "a12e45ace0d4fbc084b9619041e2f3a0e31b143e59bc7db70aebd86fae800acc", kill_on_drop: false }`
[INFO] [stderr]     Checking infer v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "a12e45ace0d4fbc084b9619041e2f3a0e31b143e59bc7db70aebd86fae800acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a12e45ace0d4fbc084b9619041e2f3a0e31b143e59bc7db70aebd86fae800acc", kill_on_drop: false }`
[INFO] [stdout] a12e45ace0d4fbc084b9619041e2f3a0e31b143e59bc7db70aebd86fae800acc