[INFO] fetching crate raffia 0.9.2...
[INFO] checking raffia-0.9.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate raffia 0.9.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate raffia 0.9.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate raffia 0.9.2
[INFO] tweaked toml for crates.io crate raffia 0.9.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate raffia 0.9.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate raffia 0.9.2 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be5034aeae29f62f827d5484ffe5a2c9867fcd16a37fbf0d26cfad927920b209
[INFO] running `Command { std: "docker" "start" "-a" "be5034aeae29f62f827d5484ffe5a2c9867fcd16a37fbf0d26cfad927920b209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be5034aeae29f62f827d5484ffe5a2c9867fcd16a37fbf0d26cfad927920b209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5034aeae29f62f827d5484ffe5a2c9867fcd16a37fbf0d26cfad927920b209", kill_on_drop: false }`
[INFO] [stdout] be5034aeae29f62f827d5484ffe5a2c9867fcd16a37fbf0d26cfad927920b209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1b3cea190dccd213ae36a0eb73f73490f869cc424777ed9a809ec667f26d43d
[INFO] running `Command { std: "docker" "start" "-a" "c1b3cea190dccd213ae36a0eb73f73490f869cc424777ed9a809ec667f26d43d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling raffia_macro v0.1.1
[INFO] [stderr]     Checking globset v0.4.14
[INFO] [stderr]     Checking raffia v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ron v0.7.1
[INFO] [stderr]     Checking insta v1.39.0
[INFO] [stdout] error[E0277]: the trait bound `Stylesheet<'_>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> examples/json.rs:16:45
[INFO] [stdout]      |
[INFO] [stdout] 16   |     let json = serde_json::to_string_pretty(&ast).unwrap();
[INFO] [stdout]      |                ---------------------------- ^^^^ the trait `serde::ser::Serialize` is not implemented for `Stylesheet<'_>`
[INFO] [stdout]      |                |
[INFO] [stdout]      |                required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 131 others
[INFO] [stdout] note: required by a bound in `to_string_pretty`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.117/src/ser.rs:2228:17
[INFO] [stdout]      |
[INFO] [stdout] 2226 | pub fn to_string_pretty<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        ---------------- required by a bound in this function
[INFO] [stdout] 2227 | where
[INFO] [stdout] 2228 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string_pretty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raffia` (example "json") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c1b3cea190dccd213ae36a0eb73f73490f869cc424777ed9a809ec667f26d43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b3cea190dccd213ae36a0eb73f73490f869cc424777ed9a809ec667f26d43d", kill_on_drop: false }`
[INFO] [stdout] c1b3cea190dccd213ae36a0eb73f73490f869cc424777ed9a809ec667f26d43d