[INFO] fetching crate brickadia 0.1.15...
[INFO] testing brickadia-0.1.15 against 1.55.0 for beta-1.56-1
[INFO] extracting crate brickadia 0.1.15 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate brickadia 0.1.15 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brickadia 0.1.15
[INFO] finished tweaking crates.io crate brickadia 0.1.15
[INFO] tweaked toml for crates.io crate brickadia 0.1.15 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate crates.io crate brickadia 0.1.15 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitstream-io v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59b86796ac8df7ca89ecad27b52cc44f28e05a74ad828137e362386cf9874540
[INFO] running `Command { std: "docker" "start" "-a" "59b86796ac8df7ca89ecad27b52cc44f28e05a74ad828137e362386cf9874540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59b86796ac8df7ca89ecad27b52cc44f28e05a74ad828137e362386cf9874540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b86796ac8df7ca89ecad27b52cc44f28e05a74ad828137e362386cf9874540", kill_on_drop: false }`
[INFO] [stdout] 59b86796ac8df7ca89ecad27b52cc44f28e05a74ad828137e362386cf9874540
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 663f508fcd0a49de1cfaed1a4b425fa54870d55b2740c3800e2a7bf448cd24cf
[INFO] running `Command { std: "docker" "start" "-a" "663f508fcd0a49de1cfaed1a4b425fa54870d55b2740c3800e2a7bf448cd24cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling bitstream-io v1.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.2
[INFO] [stderr]    Compiling num_enum v0.5.2
[INFO] [stderr]    Compiling brickadia v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.61s
[INFO] running `Command { std: "docker" "inspect" "663f508fcd0a49de1cfaed1a4b425fa54870d55b2740c3800e2a7bf448cd24cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663f508fcd0a49de1cfaed1a4b425fa54870d55b2740c3800e2a7bf448cd24cf", kill_on_drop: false }`
[INFO] [stdout] 663f508fcd0a49de1cfaed1a4b425fa54870d55b2740c3800e2a7bf448cd24cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4cff8643bb4f13250a627c56565fbc931fe1d9be99e07a9c755ff54280099bb
[INFO] running `Command { std: "docker" "start" "-a" "f4cff8643bb4f13250a627c56565fbc931fe1d9be99e07a9c755ff54280099bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling brickadia v0.1.15 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `SaveData: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> examples/read_json.rs:9:54
[INFO] [stdout]      |
[INFO] [stdout] 9    |     println!("Serialized: {}", serde_json::to_string(&save).unwrap());
[INFO] [stdout]      |                                                      ^^^^^ the trait `serde::ser::Serialize` is not implemented for `SaveData`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.66/src/ser.rs:2216:17
[INFO] [stdout]      |
[INFO] [stdout] 2216 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 --------- required by this bound in `serde_json::to_string`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brickadia` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f4cff8643bb4f13250a627c56565fbc931fe1d9be99e07a9c755ff54280099bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4cff8643bb4f13250a627c56565fbc931fe1d9be99e07a9c755ff54280099bb", kill_on_drop: false }`
[INFO] [stdout] f4cff8643bb4f13250a627c56565fbc931fe1d9be99e07a9c755ff54280099bb