[INFO] updating cached repository https://github.com/krzysztofwos/hyper-websocket-upgrade
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2de2774837aa453ece35041292cc0b913a8c9457
[INFO] documenting krzysztofwos/hyper-websocket-upgrade against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrzysztofwos%2Fhyper-websocket-upgrade" "/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/krzysztofwos/hyper-websocket-upgrade on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krzysztofwos/hyper-websocket-upgrade
[INFO] finished tweaking git repo https://github.com/krzysztofwos/hyper-websocket-upgrade
[INFO] tweaked toml for git repo https://github.com/krzysztofwos/hyper-websocket-upgrade written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/krzysztofwos/hyper-websocket-upgrade already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 3f9f9582c60e543730f3a2f0bba3d70a5fb3fba2c4873d09db8e10a03e2ea2b3
[INFO] running `Command { std: "docker" "start" "-a" "3f9f9582c60e543730f3a2f0bba3d70a5fb3fba2c4873d09db8e10a03e2ea2b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f9f9582c60e543730f3a2f0bba3d70a5fb3fba2c4873d09db8e10a03e2ea2b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9f9582c60e543730f3a2f0bba3d70a5fb3fba2c4873d09db8e10a03e2ea2b3", kill_on_drop: false }`
[INFO] [stdout] 3f9f9582c60e543730f3a2f0bba3d70a5fb3fba2c4873d09db8e10a03e2ea2b3
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 074c69c2483e70531af1c6cd2d8b418a3ff60a08ce5b9e8a0c3ad3998f25afb2
[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" "074c69c2483e70531af1c6cd2d8b418a3ff60a08ce5b9e8a0c3ad3998f25afb2", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.6
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[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.14
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[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
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[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.7
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling rand_pcg v0.1.1
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[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking parking_lot v0.7.1
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[INFO] [stderr]     Checking crossbeam-channel v0.3.6
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking tokio-dns-unofficial v0.3.1
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking tokio-tls v0.2.0
[INFO] [stderr]     Checking tungstenite v0.6.1
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking tokio-tungstenite v0.6.0
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]  Documenting hyper-websocket-upgrade v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `GIT_HASH` not defined
[INFO] [stdout]   --> src/main.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |         "git_hash" => env!("GIT_HASH"),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `hyper-websocket-upgrade`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name hyper_websocket_upgrade src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-7a00c9c1a85c2f4a.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-df2e965b76b4bc55.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-7ddf6b4d13e0395e.rmeta --extern sha1=/opt/rustwide/target/debug/deps/libsha1-a66ab5789e4e6136.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-3f2ac7c12acf9ed8.rmeta --extern slog=/opt/rustwide/target/debug/deps/libslog-17adb9acd7682686.rmeta --extern slog_async=/opt/rustwide/target/debug/deps/libslog_async-5708100edd0b6d9e.rmeta --extern slog_stdlog=/opt/rustwide/target/debug/deps/libslog_stdlog-c673d7fc0dad0260.rmeta --extern slog_term=/opt/rustwide/target/debug/deps/libslog_term-08a18110816d3526.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-78ee69eb6bdedc08.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-df8bbb41e9ada0e6.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-1fb05bd8a82db88a.rmeta --extern tungstenite=/opt/rustwide/target/debug/deps/libtungstenite-60ed40d04cf264a1.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "074c69c2483e70531af1c6cd2d8b418a3ff60a08ce5b9e8a0c3ad3998f25afb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "074c69c2483e70531af1c6cd2d8b418a3ff60a08ce5b9e8a0c3ad3998f25afb2", kill_on_drop: false }`
[INFO] [stdout] 074c69c2483e70531af1c6cd2d8b418a3ff60a08ce5b9e8a0c3ad3998f25afb2