[INFO] fetching crate serde_stacker 0.1.0...
[INFO] checking serde_stacker-0.1.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate serde_stacker 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate serde_stacker 0.1.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde_stacker 0.1.0
[INFO] finished tweaking crates.io crate serde_stacker 0.1.0
[INFO] tweaked toml for crates.io crate serde_stacker 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 5f1d7b7012d56eeda5fbd9b8a88043793f6a4b5cd8c7830ce7d49a0c24e98ee2
[INFO] running `"docker" "start" "-a" "5f1d7b7012d56eeda5fbd9b8a88043793f6a4b5cd8c7830ce7d49a0c24e98ee2"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling psm v0.1.5
[INFO] [stderr]    Compiling stacker v0.1.6
[INFO] [stderr]     Checking serde_stacker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `disable_recursion_limit` found for type `serde_json::de::Deserializer<serde_json::read::StrRead<'_>>` in the current scope
[INFO] [stderr]   --> tests/test.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 12 |     deserializer.disable_recursion_limit();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^ method not found in `serde_json::de::Deserializer<serde_json::read::StrRead<'_>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `serde_stacker`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5f1d7b7012d56eeda5fbd9b8a88043793f6a4b5cd8c7830ce7d49a0c24e98ee2"`
[INFO] running `"docker" "rm" "-f" "5f1d7b7012d56eeda5fbd9b8a88043793f6a4b5cd8c7830ce7d49a0c24e98ee2"`
[INFO] [stdout] 5f1d7b7012d56eeda5fbd9b8a88043793f6a4b5cd8c7830ce7d49a0c24e98ee2