[INFO] fetching crate prost 0.8.0...
[INFO] testing prost-0.8.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate prost 0.8.0 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate prost 0.8.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prost 0.8.0
[INFO] finished tweaking crates.io crate prost 0.8.0
[INFO] tweaked toml for crates.io crate prost 0.8.0 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48327b6d05e101cd2997e66755f7d44f24069ac17e782301930b06cc3dbf0327
[INFO] running `Command { std: "docker" "start" "-a" "48327b6d05e101cd2997e66755f7d44f24069ac17e782301930b06cc3dbf0327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48327b6d05e101cd2997e66755f7d44f24069ac17e782301930b06cc3dbf0327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48327b6d05e101cd2997e66755f7d44f24069ac17e782301930b06cc3dbf0327", kill_on_drop: false }`
[INFO] [stdout] 48327b6d05e101cd2997e66755f7d44f24069ac17e782301930b06cc3dbf0327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7bdedbdbff6a648dae15cbfff081648a452a698cabd7a3ffceb409e0147369f
[INFO] running `Command { std: "docker" "start" "-a" "f7bdedbdbff6a648dae15cbfff081648a452a698cabd7a3ffceb409e0147369f", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling prost-derive v0.8.0
[INFO] [stderr]    Compiling prost v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.49s
[INFO] running `Command { std: "docker" "inspect" "f7bdedbdbff6a648dae15cbfff081648a452a698cabd7a3ffceb409e0147369f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7bdedbdbff6a648dae15cbfff081648a452a698cabd7a3ffceb409e0147369f", kill_on_drop: false }`
[INFO] [stdout] f7bdedbdbff6a648dae15cbfff081648a452a698cabd7a3ffceb409e0147369f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc2445c333edda3e21fbf2f31154165c75bf3bcef40287a9f70b6ee271b3fdc
[INFO] running `Command { std: "docker" "start" "-a" "dbc2445c333edda3e21fbf2f31154165c75bf3bcef40287a9f70b6ee271b3fdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling proptest v1.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling prost v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `prost`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name prost --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="prost-derive"' --cfg 'feature="std"' -C metadata=185d6babb97255d8 -C extra-filename=-185d6babb97255d8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-ad944733d275aa30.rlib --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-49f5de2921f3ce01.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-ecb12624b363e12f.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-c7a6438e9780af3a.rlib --extern proptest=/opt/rustwide/target/debug/deps/libproptest-19307a4bbc138f93.rlib --extern prost_derive=/opt/rustwide/target/debug/deps/libprost_derive-527fc118dc8f55e3.so --extern rand=/opt/rustwide/target/debug/deps/librand-08af1d871362c2fe.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "dbc2445c333edda3e21fbf2f31154165c75bf3bcef40287a9f70b6ee271b3fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc2445c333edda3e21fbf2f31154165c75bf3bcef40287a9f70b6ee271b3fdc", kill_on_drop: false }`
[INFO] [stdout] dbc2445c333edda3e21fbf2f31154165c75bf3bcef40287a9f70b6ee271b3fdc
