[INFO] fetching crate gargoyle-feed-monitor 0.1.3...
[INFO] checking gargoyle-feed-monitor-0.1.3 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate gargoyle-feed-monitor 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate gargoyle-feed-monitor 0.1.3
[INFO] finished tweaking crates.io crate gargoyle-feed-monitor 0.1.3
[INFO] tweaked toml for crates.io crate gargoyle-feed-monitor 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gargoyle-feed-monitor 0.1.3 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gargoyle-feed-monitor 0.1.3 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gargoyle v0.1.5
[INFO] [stderr]   Downloaded syn v2.0.63
[INFO] [stderr]   Downloaded feed-rs v1.5.2
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[INFO] [stdout] b7092ed99ee9077538b825354667d6ad78b56974b62251bec4e819635020954a
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[INFO] running `Command { std: "docker" "inspect" "b7092ed99ee9077538b825354667d6ad78b56974b62251bec4e819635020954a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7092ed99ee9077538b825354667d6ad78b56974b62251bec4e819635020954a", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f1ec59b045fab23b94f583e481cc8b0c359c01f8fba26a05f3c77339a215d85
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[INFO] [stdout] error[E0277]: the trait bound `Result<WebFeedUpdate, String>: Monitor` is not satisfied
[INFO] [stdout]   --> examples/example.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  9 |     schedule.add(
[INFO] [stdout]    |              --- required by a bound introduced by this call
[INFO] [stdout] ...
[INFO] [stdout] 13 |         &mut rss_monitor,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the trait `Monitor` is not implemented for `Result<WebFeedUpdate, String>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Monitor` is implemented for `WebFeedUpdate`
[INFO] [stdout] note: required by a bound in `Schedule::<'a>::add`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gargoyle-0.1.5/src/schedule.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn add<M: Monitor, N: Notify>(
[INFO] [stdout]    |                   ^^^^^^^ required by this bound in `Schedule::<'a>::add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gargoyle-feed-monitor` (example "example") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6f1ec59b045fab23b94f583e481cc8b0c359c01f8fba26a05f3c77339a215d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f1ec59b045fab23b94f583e481cc8b0c359c01f8fba26a05f3c77339a215d85", kill_on_drop: false }`
[INFO] [stdout] 6f1ec59b045fab23b94f583e481cc8b0c359c01f8fba26a05f3c77339a215d85