[INFO] updating cached repository https://github.com/dbrgn/prost-stackoverflow-reproducer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09f51da62547742e2564543e93c713317b1f4ca4
[INFO] checking dbrgn/prost-stackoverflow-reproducer against try#5fdfba63a96c5e8ae0ebf6b8b66853110277087d for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fprost-stackoverflow-reproducer" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbrgn/prost-stackoverflow-reproducer on toolchain 5fdfba63a96c5e8ae0ebf6b8b66853110277087d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dbrgn/prost-stackoverflow-reproducer
[INFO] finished tweaking git repo https://github.com/dbrgn/prost-stackoverflow-reproducer
[INFO] tweaked toml for git repo https://github.com/dbrgn/prost-stackoverflow-reproducer written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/dbrgn/prost-stackoverflow-reproducer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81253c3e522d503df3b51938cc79c83d7c2f34895d7e1241640f3cc946ac51c5
[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" "81253c3e522d503df3b51938cc79c83d7c2f34895d7e1241640f3cc946ac51c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81253c3e522d503df3b51938cc79c83d7c2f34895d7e1241640f3cc946ac51c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81253c3e522d503df3b51938cc79c83d7c2f34895d7e1241640f3cc946ac51c5", kill_on_drop: false }`
[INFO] [stdout] 81253c3e522d503df3b51938cc79c83d7c2f34895d7e1241640f3cc946ac51c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a14de1ceddd10d64bf94f9ab2bb1346ce253e7aa03d39a9ab13b73d8b1bdb969
[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" "a14de1ceddd10d64bf94f9ab2bb1346ce253e7aa03d39a9ab13b73d8b1bdb969", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.42
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling prost-build v0.6.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling prost-derive v0.6.0
[INFO] [stderr]    Compiling prost v0.6.0
[INFO] [stderr]    Compiling prost-types v0.6.0
[INFO] [stderr]    Compiling prost-stackoverflow-reproducer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.88s
[INFO] running `Command { std: "docker" "inspect" "a14de1ceddd10d64bf94f9ab2bb1346ce253e7aa03d39a9ab13b73d8b1bdb969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14de1ceddd10d64bf94f9ab2bb1346ce253e7aa03d39a9ab13b73d8b1bdb969", kill_on_drop: false }`
[INFO] [stdout] a14de1ceddd10d64bf94f9ab2bb1346ce253e7aa03d39a9ab13b73d8b1bdb969