[INFO] cloning repository https://github.com/mckeankylej/mutable-state
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mckeankylej/mutable-state" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmckeankylej%2Fmutable-state", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmckeankylej%2Fmutable-state'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85696f493d58dc566e2526a65f38b345307780a6
[INFO] checking mckeankylej/mutable-state against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmckeankylej%2Fmutable-state" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mckeankylej/mutable-state on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mckeankylej/mutable-state
[INFO] finished tweaking git repo https://github.com/mckeankylej/mutable-state
[INFO] tweaked toml for git repo https://github.com/mckeankylej/mutable-state written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mckeankylej/mutable-state already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 83865fa2e5d9efa454b5ba5de8fa3eca676f3b3525b1546551cbd62379f96729
[INFO] running `Command { std: "docker" "start" "-a" "83865fa2e5d9efa454b5ba5de8fa3eca676f3b3525b1546551cbd62379f96729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83865fa2e5d9efa454b5ba5de8fa3eca676f3b3525b1546551cbd62379f96729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83865fa2e5d9efa454b5ba5de8fa3eca676f3b3525b1546551cbd62379f96729", kill_on_drop: false }`
[INFO] [stdout] 83865fa2e5d9efa454b5ba5de8fa3eca676f3b3525b1546551cbd62379f96729
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83083cbcc01a6b9b1db7920db988d6df7291063f51040d1727f157583fa7afcb
[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" "83083cbcc01a6b9b1db7920db988d6df7291063f51040d1727f157583fa7afcb", kill_on_drop: false }`
[INFO] [stderr]     Checking mutable-state v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "83083cbcc01a6b9b1db7920db988d6df7291063f51040d1727f157583fa7afcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83083cbcc01a6b9b1db7920db988d6df7291063f51040d1727f157583fa7afcb", kill_on_drop: false }`
[INFO] [stdout] 83083cbcc01a6b9b1db7920db988d6df7291063f51040d1727f157583fa7afcb