[INFO] cloning repository https://github.com/JedimEmO/dominator-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JedimEmO/dominator-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJedimEmO%2Fdominator-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJedimEmO%2Fdominator-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82345965029eec7cf0008e178a789d139e2d4b3e
[INFO] checking JedimEmO/dominator-book against master#11d2046fe9962720558cb15f72541f7fd170dec9 for pr-139493-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJedimEmO%2Fdominator-book" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/JedimEmO/dominator-book
[INFO] finished tweaking git repo https://github.com/JedimEmO/dominator-book
[INFO] tweaked toml for git repo https://github.com/JedimEmO/dominator-book written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JedimEmO/dominator-book on toolchain 11d2046fe9962720558cb15f72541f7fd170dec9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11d2046fe9962720558cb15f72541f7fd170dec9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JedimEmO/dominator-book 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" "+11d2046fe9962720558cb15f72541f7fd170dec9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+11d2046fe9962720558cb15f72541f7fd170dec9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 570d7a3c68d592e7cd5608072615aabd4846b5c3676ce7ef75c1ecb30a2b6863
[INFO] running `Command { std: "docker" "start" "-a" "570d7a3c68d592e7cd5608072615aabd4846b5c3676ce7ef75c1ecb30a2b6863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "570d7a3c68d592e7cd5608072615aabd4846b5c3676ce7ef75c1ecb30a2b6863", kill_on_drop: false }`
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+11d2046fe9962720558cb15f72541f7fd170dec9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "b9d7e67a20f5803f562366a8a4d6d6ec11001d2dbaf15c054617f48eb511e8bb", kill_on_drop: false }`
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[INFO] [stderr]     Checking doc-imports v0.1.0 (/opt/rustwide/workdir/src/doc-imports)
[INFO] [stderr]     Checking hello_world_tutorial v0.1.0 (/opt/rustwide/workdir/tutorials/hello_world)
[INFO] [stdout] warning: unused `futures_signals::signal_vec::Map` that must be used
[INFO] [stdout]    --> src/doc-imports/src/introduction/mutable_collections.rs:93:1
[INFO] [stdout]     |
[INFO] [stdout]  93 | / data.signal_vec()
[INFO] [stdout]  94 | |     .enumerate()
[INFO] [stdout]  95 | |     .map(|(index, value): (ReadOnlyMutable<Option<usize>>, i32)| {
[INFO] [stdout]  96 | |         html!("div", {
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |         })
[INFO] [stdout] 104 | | });
[INFO] [stdout]     | |__^
[INFO] [stdout]     |
[INFO] [stdout]     = note: SignalVecs do nothing unless polled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout]  93 | let _ = data.signal_vec()
[INFO] [stdout]     | +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures_signals::signal_vec::Map` that must be used
[INFO] [stdout]    --> src/doc-imports/src/introduction/mutable_collections.rs:93:1
[INFO] [stdout]     |
[INFO] [stdout]  93 | / data.signal_vec()
[INFO] [stdout]  94 | |     .enumerate()
[INFO] [stdout]  95 | |     .map(|(index, value): (ReadOnlyMutable<Option<usize>>, i32)| {
[INFO] [stdout]  96 | |         html!("div", {
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |         })
[INFO] [stdout] 104 | | });
[INFO] [stdout]     | |__^
[INFO] [stdout]     |
[INFO] [stdout]     = note: SignalVecs do nothing unless polled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout]  93 | let _ = data.signal_vec()
[INFO] [stdout]     | +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking all_of_the_others v0.1.0 (/opt/rustwide/workdir/tutorials/all_of_the_others)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.43s
[INFO] running `Command { std: "docker" "inspect" "b9d7e67a20f5803f562366a8a4d6d6ec11001d2dbaf15c054617f48eb511e8bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d7e67a20f5803f562366a8a4d6d6ec11001d2dbaf15c054617f48eb511e8bb", kill_on_drop: false }`
[INFO] [stdout] b9d7e67a20f5803f562366a8a4d6d6ec11001d2dbaf15c054617f48eb511e8bb