[INFO] cloning repository https://github.com/paoloposso/grpc-rust-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paoloposso/grpc-rust-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaoloposso%2Fgrpc-rust-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaoloposso%2Fgrpc-rust-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 708cd374dfa613c3415473163a657448cac7b014
[INFO] checking paoloposso/grpc-rust-poc against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaoloposso%2Fgrpc-rust-poc" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paoloposso/grpc-rust-poc on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paoloposso/grpc-rust-poc
[INFO] finished tweaking git repo https://github.com/paoloposso/grpc-rust-poc
[INFO] tweaked toml for git repo https://github.com/paoloposso/grpc-rust-poc written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/paoloposso/grpc-rust-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tonic-build v0.4.1
[INFO] [stderr]   Downloaded tonic v0.4.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04f2382af7ad04e834e637de64786649ff355bb9cfc8e898843a6c1dc843d4bd
[INFO] running `Command { std: "docker" "start" "-a" "04f2382af7ad04e834e637de64786649ff355bb9cfc8e898843a6c1dc843d4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04f2382af7ad04e834e637de64786649ff355bb9cfc8e898843a6c1dc843d4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f2382af7ad04e834e637de64786649ff355bb9cfc8e898843a6c1dc843d4bd", kill_on_drop: false }`
[INFO] [stdout] 04f2382af7ad04e834e637de64786649ff355bb9cfc8e898843a6c1dc843d4bd
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a58e20b31077ed647171bf1ebd626bd9108b0981bedb7bba076d36366beafecf
[INFO] running `Command { std: "docker" "start" "-a" "a58e20b31077ed647171bf1ebd626bd9108b0981bedb7bba076d36366beafecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking tokio-util v0.6.5
[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking tower v0.4.6
[INFO] [stderr]    Compiling tonic-build v0.4.1
[INFO] [stderr]    Compiling grpc_client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stderr]    Compiling grpc_server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stderr] error: failed to run custom build command for `grpc_client v0.1.0 (/opt/rustwide/workdir/client)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/grpc_client-ea09dde7bdfe1d06/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain '3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f'
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a58e20b31077ed647171bf1ebd626bd9108b0981bedb7bba076d36366beafecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a58e20b31077ed647171bf1ebd626bd9108b0981bedb7bba076d36366beafecf", kill_on_drop: false }`
[INFO] [stdout] a58e20b31077ed647171bf1ebd626bd9108b0981bedb7bba076d36366beafecf