[INFO] cloning repository https://github.com/AlvinSamuelsson/stack_machine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlvinSamuelsson/stack_machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvinSamuelsson%2Fstack_machine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvinSamuelsson%2Fstack_machine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 132bf5c40ea6fe4503262ca4c3b70d50b278b184
[INFO] checking AlvinSamuelsson/stack_machine against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlvinSamuelsson%2Fstack_machine" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlvinSamuelsson/stack_machine on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlvinSamuelsson/stack_machine
[INFO] finished tweaking git repo https://github.com/AlvinSamuelsson/stack_machine
[INFO] tweaked toml for git repo https://github.com/AlvinSamuelsson/stack_machine written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/AlvinSamuelsson/stack_machine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e520f4b15829230dbbe19e65380c380f085c5d532ef8041b7b68fd41839d93b6
[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" "e520f4b15829230dbbe19e65380c380f085c5d532ef8041b7b68fd41839d93b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e520f4b15829230dbbe19e65380c380f085c5d532ef8041b7b68fd41839d93b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e520f4b15829230dbbe19e65380c380f085c5d532ef8041b7b68fd41839d93b6", kill_on_drop: false }`
[INFO] [stdout] e520f4b15829230dbbe19e65380c380f085c5d532ef8041b7b68fd41839d93b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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] 1f95139afe8d2cee959a885133c973e0200fc897f147b8ac4a59a817df9e9cfb
[INFO] running `Command { std: "docker" "start" "-a" "1f95139afe8d2cee959a885133c973e0200fc897f147b8ac4a59a817df9e9cfb", kill_on_drop: false }`
[INFO] [stderr]     Checking stack_machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "1f95139afe8d2cee959a885133c973e0200fc897f147b8ac4a59a817df9e9cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f95139afe8d2cee959a885133c973e0200fc897f147b8ac4a59a817df9e9cfb", kill_on_drop: false }`
[INFO] [stdout] 1f95139afe8d2cee959a885133c973e0200fc897f147b8ac4a59a817df9e9cfb