[INFO] cloning 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" "clone" "--bare" "https://github.com/dbrgn/prost-stackoverflow-reproducer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fprost-stackoverflow-reproducer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fprost-stackoverflow-reproducer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09f51da62547742e2564543e93c713317b1f4ca4
[INFO] testing dbrgn/prost-stackoverflow-reproducer against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fprost-stackoverflow-reproducer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbrgn/prost-stackoverflow-reproducer on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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-3/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] ae6eb098167c19a2896f05911afabb9e1a4a3982a8396727fbc87497ae354e8f
[INFO] running `Command { std: "docker" "start" "-a" "ae6eb098167c19a2896f05911afabb9e1a4a3982a8396727fbc87497ae354e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae6eb098167c19a2896f05911afabb9e1a4a3982a8396727fbc87497ae354e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6eb098167c19a2896f05911afabb9e1a4a3982a8396727fbc87497ae354e8f", kill_on_drop: false }`
[INFO] [stdout] ae6eb098167c19a2896f05911afabb9e1a4a3982a8396727fbc87497ae354e8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fe98afdf8284217df9bfe62e349c0bfee064812cfe15558b604eacea7fe4e3d
[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" "5fe98afdf8284217df9bfe62e349c0bfee064812cfe15558b604eacea7fe4e3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling syn v1.0.13
[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 log v0.4.8
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[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 quote v1.0.2
[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 40.84s
[INFO] running `Command { std: "docker" "inspect" "5fe98afdf8284217df9bfe62e349c0bfee064812cfe15558b604eacea7fe4e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe98afdf8284217df9bfe62e349c0bfee064812cfe15558b604eacea7fe4e3d", kill_on_drop: false }`
[INFO] [stdout] 5fe98afdf8284217df9bfe62e349c0bfee064812cfe15558b604eacea7fe4e3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--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] 89e682ae69b5d3235b0b373377eba155b8c6851783d6da5b9b641a79479cd6ed
[INFO] running `Command { std: "docker" "start" "-a" "89e682ae69b5d3235b0b373377eba155b8c6851783d6da5b9b641a79479cd6ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling prost-stackoverflow-reproducer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "89e682ae69b5d3235b0b373377eba155b8c6851783d6da5b9b641a79479cd6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e682ae69b5d3235b0b373377eba155b8c6851783d6da5b9b641a79479cd6ed", kill_on_drop: false }`
[INFO] [stdout] 89e682ae69b5d3235b0b373377eba155b8c6851783d6da5b9b641a79479cd6ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23140088a533a80dcb4278b3b18faf0761699de4c1bd97e58ab79ef7097a12fb
[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" "23140088a533a80dcb4278b3b18faf0761699de4c1bd97e58ab79ef7097a12fb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prost_stackoverflow_reproducer-3eae3e9207c4dd43
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23140088a533a80dcb4278b3b18faf0761699de4c1bd97e58ab79ef7097a12fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23140088a533a80dcb4278b3b18faf0761699de4c1bd97e58ab79ef7097a12fb", kill_on_drop: false }`
[INFO] [stdout] 23140088a533a80dcb4278b3b18faf0761699de4c1bd97e58ab79ef7097a12fb