[INFO] fetching crate prosto 0.4.5...
[INFO] checking prosto-0.4.5 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate prosto 0.4.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate prosto 0.4.5 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prosto 0.4.5
[INFO] finished tweaking crates.io crate prosto 0.4.5
[INFO] tweaked toml for crates.io crate prosto 0.4.5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51a81656d6fee73f999026136d3c3cb7c2edcbd455aef66fcd28a548fa549263
[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" "51a81656d6fee73f999026136d3c3cb7c2edcbd455aef66fcd28a548fa549263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51a81656d6fee73f999026136d3c3cb7c2edcbd455aef66fcd28a548fa549263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a81656d6fee73f999026136d3c3cb7c2edcbd455aef66fcd28a548fa549263", kill_on_drop: false }`
[INFO] [stdout] 51a81656d6fee73f999026136d3c3cb7c2edcbd455aef66fcd28a548fa549263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b6bfc521a267cff8471d7ce3a55342c54eacc21a27d20abbfbe2b4655634aa2
[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" "1b6bfc521a267cff8471d7ce3a55342c54eacc21a27d20abbfbe2b4655634aa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking prost v0.6.1
[INFO] [stderr]     Checking prost-types v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking zstd v0.5.4+zstd.1.4.7
[INFO] [stderr]     Checking prosto v0.4.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] running `Command { std: "docker" "inspect" "1b6bfc521a267cff8471d7ce3a55342c54eacc21a27d20abbfbe2b4655634aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b6bfc521a267cff8471d7ce3a55342c54eacc21a27d20abbfbe2b4655634aa2", kill_on_drop: false }`
[INFO] [stdout] 1b6bfc521a267cff8471d7ce3a55342c54eacc21a27d20abbfbe2b4655634aa2