[INFO] cloning repository https://github.com/cognivore/async-workshop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cognivore/async-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcognivore%2Fasync-workshop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcognivore%2Fasync-workshop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7526ddfe1a5494b05371417664298a5814e25efe
[INFO] documenting cognivore/async-workshop against 1.100.0-beta.1 for beta-rustdoc-1.100
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcognivore%2Fasync-workshop" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cognivore/async-workshop
[INFO] finished tweaking git repo https://github.com/cognivore/async-workshop
[INFO] tweaked toml for git repo https://github.com/cognivore/async-workshop written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cognivore/async-workshop on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cognivore/async-workshop 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" "+1.100.0-beta.1" "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 ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523
[INFO] running `Command { std: "docker" "start" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling futures-core v0.3.26
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]     Checking pin-project-lite v0.2.9
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[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking atomic-waker v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.93
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[INFO] [stderr]     Checking remove_dir_all v0.5.3
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[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]    Compiling lock_api v0.4.9
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[INFO] [stderr]    Compiling async-net v1.7.0
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[INFO] [stderr]     Checking signal-hook-registry v1.4.1
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[INFO] [stderr]    Compiling pin-project-internal v1.0.12
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[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking hyperpipe v0.1.0 (https://github.com/cognivore/hyperpipe.git#b234d20a)
[INFO] [stderr]  Documenting async-workshop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.27s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/async_workshop/index.html
[INFO] running `Command { std: "docker" "inspect" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523", kill_on_drop: false }`
[INFO] [stdout] e495e51faefb35ad0f723953b66b99772dad65dd3b5c816b1fea4a19f3fdf523
