[INFO] fetching crate isl 0.0.0-reserve...
[INFO] checking isl-0.0.0-reserve against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate isl 0.0.0-reserve into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate isl 0.0.0-reserve on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isl 0.0.0-reserve
[INFO] finished tweaking crates.io crate isl 0.0.0-reserve
[INFO] tweaked toml for crates.io crate isl 0.0.0-reserve written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate isl 0.0.0-reserve already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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] ae6365c75e0da4854caba9d117ad53fba50f1cedca3ff29835568d6c9ef667d9
[INFO] running `Command { std: "docker" "start" "-a" "ae6365c75e0da4854caba9d117ad53fba50f1cedca3ff29835568d6c9ef667d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae6365c75e0da4854caba9d117ad53fba50f1cedca3ff29835568d6c9ef667d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6365c75e0da4854caba9d117ad53fba50f1cedca3ff29835568d6c9ef667d9", kill_on_drop: false }`
[INFO] [stdout] ae6365c75e0da4854caba9d117ad53fba50f1cedca3ff29835568d6c9ef667d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5633456be0fcbcce586f190991ec5b0e381d55b95ff523dc0abcb1ad5c7b3b8d
[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" "5633456be0fcbcce586f190991ec5b0e381d55b95ff523dc0abcb1ad5c7b3b8d", kill_on_drop: false }`
[INFO] [stderr]     Checking isl v0.0.0-reserve (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "5633456be0fcbcce586f190991ec5b0e381d55b95ff523dc0abcb1ad5c7b3b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5633456be0fcbcce586f190991ec5b0e381d55b95ff523dc0abcb1ad5c7b3b8d", kill_on_drop: false }`
[INFO] [stdout] 5633456be0fcbcce586f190991ec5b0e381d55b95ff523dc0abcb1ad5c7b3b8d