[INFO] cloning repository https://github.com/fbielejec/ws-load-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fbielejec/ws-load-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbielejec%2Fws-load-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbielejec%2Fws-load-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 332eda8130fc9ef5cecdf6ab83514557583dbcf6
[INFO] checking fbielejec/ws-load-test/332eda8130fc9ef5cecdf6ab83514557583dbcf6 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbielejec%2Fws-load-test" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fbielejec/ws-load-test on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fbielejec/ws-load-test
[INFO] finished tweaking git repo https://github.com/fbielejec/ws-load-test
[INFO] tweaked toml for git repo https://github.com/fbielejec/ws-load-test written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fbielejec/ws-load-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] [stderr]   Downloaded tower v0.4.3
[INFO] [stderr]   Downloaded svg v0.7.2
[INFO] [stderr]   Downloaded async-tungstenite v0.12.0
[INFO] [stderr]   Downloaded tonic-build v0.2.0
[INFO] [stderr]   Downloaded hdrhistogram v7.1.0
[INFO] [stderr]   Downloaded tokio v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d48bf15c11172994d437e63cd7ee26a76455f557952868df9db98fda56de8db
[INFO] running `Command { std: "docker" "start" "-a" "7d48bf15c11172994d437e63cd7ee26a76455f557952868df9db98fda56de8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d48bf15c11172994d437e63cd7ee26a76455f557952868df9db98fda56de8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d48bf15c11172994d437e63cd7ee26a76455f557952868df9db98fda56de8db", kill_on_drop: false }`
[INFO] [stdout] 7d48bf15c11172994d437e63cd7ee26a76455f557952868df9db98fda56de8db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b758c21be90cebff32580fdeaf68c7984890f74879edcf473dabff6c157f8f8c
[INFO] running `Command { std: "docker" "start" "-a" "b758c21be90cebff32580fdeaf68c7984890f74879edcf473dabff6c157f8f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
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[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling cc v1.0.66
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[INFO] [stderr]     Checking untrusted v0.7.1
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[INFO] [stderr]    Compiling rand_core v0.6.1
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[INFO] [stderr]    Compiling itertools v0.8.2
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[INFO] [stderr]    Compiling remove_dir_all v0.5.3
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[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.42
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[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking hdrhistogram v7.1.0
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking prost v0.7.0
[INFO] [stderr]     Checking prost-types v0.7.0
[INFO] [stderr]     Checking tokio-stream v0.1.2
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking tokio-util v0.6.1
[INFO] [stderr]    Compiling tonic-build v0.2.0
[INFO] [stderr]     Checking tower v0.4.3
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking async-tungstenite v0.12.0
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]    Compiling load-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `load-test v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/load-test-10efb47d7ab5c5ef/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the custom toolchain 'f609b7e0586f81fefb3523e3e17adf779ac416be'.
[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] running `Command { std: "docker" "inspect" "b758c21be90cebff32580fdeaf68c7984890f74879edcf473dabff6c157f8f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b758c21be90cebff32580fdeaf68c7984890f74879edcf473dabff6c157f8f8c", kill_on_drop: false }`
[INFO] [stdout] b758c21be90cebff32580fdeaf68c7984890f74879edcf473dabff6c157f8f8c