[INFO] fetching crate movingai 1.1.1...
[INFO] checking movingai-1.1.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate movingai 1.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate movingai 1.1.1 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate movingai 1.1.1
[INFO] finished tweaking crates.io crate movingai 1.1.1
[INFO] tweaked toml for crates.io crate movingai 1.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate movingai 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cdde5b3f1da7188d8d38e02069d55f8c904186d12f0c20dd9f483429ead5d6e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0cdde5b3f1da7188d8d38e02069d55f8c904186d12f0c20dd9f483429ead5d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cdde5b3f1da7188d8d38e02069d55f8c904186d12f0c20dd9f483429ead5d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cdde5b3f1da7188d8d38e02069d55f8c904186d12f0c20dd9f483429ead5d6e", kill_on_drop: false }`
[INFO] [stdout] 0cdde5b3f1da7188d8d38e02069d55f8c904186d12f0c20dd9f483429ead5d6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96bf285f936ad33ae0cb3678a1c155efdc37eaac4e998d361a6ffdbe89ab331e
[INFO] running `Command { std: "docker" "start" "-a" "96bf285f936ad33ae0cb3678a1c155efdc37eaac4e998d361a6ffdbe89ab331e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking movingai v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stdout] error[E0277]: the trait bound `MovingAiMap: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> examples/into_json.rs:10:44
[INFO] [stdout]      |
[INFO] [stdout] 10   |     let serialized = serde_json::to_string(&map).unwrap();
[INFO] [stdout]      |                                            ^^^^ the trait `serde::ser::Serialize` is not implemented for `MovingAiMap`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.51/src/ser.rs:2224:17
[INFO] [stdout]      |
[INFO] [stdout] 2224 |     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 `movingai`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "96bf285f936ad33ae0cb3678a1c155efdc37eaac4e998d361a6ffdbe89ab331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96bf285f936ad33ae0cb3678a1c155efdc37eaac4e998d361a6ffdbe89ab331e", kill_on_drop: false }`
[INFO] [stdout] 96bf285f936ad33ae0cb3678a1c155efdc37eaac4e998d361a6ffdbe89ab331e