[INFO] updating cached repository https://github.com/jimmycuadra/serde_test
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a2bbdca2a252b053349919531fd60e8c6ef499f0
[INFO] checking jimmycuadra/serde_test against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmycuadra%2Fserde_test" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jimmycuadra/serde_test on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jimmycuadra/serde_test
[INFO] finished tweaking git repo https://github.com/jimmycuadra/serde_test
[INFO] tweaked toml for git repo https://github.com/jimmycuadra/serde_test written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jimmycuadra/serde_test already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fcdd0abdd96fe861ea5a65e2edb3d40192b7fca98222ecb486766bec6244433e
[INFO] running `"docker" "start" "-a" "fcdd0abdd96fe861ea5a65e2edb3d40192b7fca98222ecb486766bec6244433e"`
[INFO] [stderr]    Compiling syntex_pos v0.39.0
[INFO] [stderr]    Compiling syntex_syntax v0.29.3
[INFO] [stderr]     Checking serde_json v0.7.4
[INFO] [stderr]    Compiling syntex_errors v0.39.0
[INFO] [stderr]    Compiling syntex_syntax v0.39.0
[INFO] [stderr]    Compiling syntex v0.29.2
[INFO] [stderr]    Compiling syntex v0.39.0
[INFO] [stderr]    Compiling aster v0.22.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.4.0
[INFO] [stderr]    Compiling quasi v0.16.0
[INFO] [stderr]    Compiling quasi_codegen v0.16.0
[INFO] [stderr]    Compiling serde_codegen v0.7.15
[INFO] [stderr]    Compiling serde_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> build.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 |     serde_codegen::register(&mut registry);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ expected struct `syntex::Registry`, found a different struct `syntex::Registry`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&mut syntex::Registry` (struct `syntex::Registry`)
[INFO] [stderr]               found type `&mut syntex::Registry` (struct `syntex::Registry`)
[INFO] [stderr] note: Perhaps two different versions of crate `syntex` are being used?
[INFO] [stderr]   --> build.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 |     serde_codegen::register(&mut registry);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `serde_test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fcdd0abdd96fe861ea5a65e2edb3d40192b7fca98222ecb486766bec6244433e"`
[INFO] running `"docker" "rm" "-f" "fcdd0abdd96fe861ea5a65e2edb3d40192b7fca98222ecb486766bec6244433e"`
[INFO] [stdout] fcdd0abdd96fe861ea5a65e2edb3d40192b7fca98222ecb486766bec6244433e