[INFO] fetching crate piconbiere 0.3.0...
[INFO] checking piconbiere-0.3.0 against try#ebb118907fa893a392c699ddf120848fa0a8d6c2 for pr-116930
[INFO] extracting crate piconbiere 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate piconbiere 0.3.0 on toolchain ebb118907fa893a392c699ddf120848fa0a8d6c2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebb118907fa893a392c699ddf120848fa0a8d6c2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piconbiere 0.3.0
[INFO] finished tweaking crates.io crate piconbiere 0.3.0
[INFO] tweaked toml for crates.io crate piconbiere 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate piconbiere 0.3.0 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" "+ebb118907fa893a392c699ddf120848fa0a8d6c2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+ebb118907fa893a392c699ddf120848fa0a8d6c2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bba3c3b8d36840c6def0483f2544085d01d8cf349d741eff6c6c7cad61b3929
[INFO] running `Command { std: "docker" "start" "-a" "7bba3c3b8d36840c6def0483f2544085d01d8cf349d741eff6c6c7cad61b3929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bba3c3b8d36840c6def0483f2544085d01d8cf349d741eff6c6c7cad61b3929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bba3c3b8d36840c6def0483f2544085d01d8cf349d741eff6c6c7cad61b3929", kill_on_drop: false }`
[INFO] [stdout] 7bba3c3b8d36840c6def0483f2544085d01d8cf349d741eff6c6c7cad61b3929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+ebb118907fa893a392c699ddf120848fa0a8d6c2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a6de9ad0cc9f38d60c9f59052be790f00cbf09f94f5d0d0f2f2d4bd1f4371bc
[INFO] running `Command { std: "docker" "start" "-a" "0a6de9ad0cc9f38d60c9f59052be790f00cbf09f94f5d0d0f2f2d4bd1f4371bc", kill_on_drop: false }`
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[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/client.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |               /// 1s ought to be enough to avoid detection...
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 50 | /             limiter: Arc::new(RateLimiter::direct(Quota::per_second(
[INFO] [stdout] 51 | |                 NonZeroU32::new(1).expect("quota"),
[INFO] [stdout] 52 | |             ))),
[INFO] [stdout]    | |_______________- rustdoc does not generate documentation for expression fields
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/client.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |               /// 1s ought to be enough to avoid detection...
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 50 | /             limiter: Arc::new(RateLimiter::direct(Quota::per_second(
[INFO] [stdout] 51 | |                 NonZeroU32::new(1).expect("quota"),
[INFO] [stdout] 52 | |             ))),
[INFO] [stdout]    | |_______________- rustdoc does not generate documentation for expression fields
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0453]: deny(future_incompatible) incompatible with previous forbid
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     future_incompatible,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]   |
[INFO] [stdout]   = note: `forbid` lint level is the default for pointer_structural_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0453]: deny(future_incompatible) incompatible with previous forbid
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     future_incompatible,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]   |
[INFO] [stdout]   = note: `forbid` lint level is the default for pointer_structural_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0453`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0453`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `piconbiere` (bin "piconbiere") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `piconbiere` (bin "piconbiere" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0a6de9ad0cc9f38d60c9f59052be790f00cbf09f94f5d0d0f2f2d4bd1f4371bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6de9ad0cc9f38d60c9f59052be790f00cbf09f94f5d0d0f2f2d4bd1f4371bc", kill_on_drop: false }`
[INFO] [stdout] 0a6de9ad0cc9f38d60c9f59052be790f00cbf09f94f5d0d0f2f2d4bd1f4371bc