[INFO] fetching crate orml-utilities 0.1.1...
[INFO] testing orml-utilities-0.1.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate orml-utilities 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate orml-utilities 0.1.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate orml-utilities 0.1.1
[INFO] finished tweaking crates.io crate orml-utilities 0.1.1
[INFO] tweaked toml for crates.io crate orml-utilities 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 21976ef5a0b38e44a6adc226c0f959830a1002163892a0f3d687ba73ffcdc463
[INFO] running `"docker" "start" "-a" "21976ef5a0b38e44a6adc226c0f959830a1002163892a0f3d687ba73ffcdc463"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling orml-utilities v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `"docker" "inspect" "21976ef5a0b38e44a6adc226c0f959830a1002163892a0f3d687ba73ffcdc463"`
[INFO] running `"docker" "rm" "-f" "21976ef5a0b38e44a6adc226c0f959830a1002163892a0f3d687ba73ffcdc463"`
[INFO] [stdout] 21976ef5a0b38e44a6adc226c0f959830a1002163892a0f3d687ba73ffcdc463
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] dc6164c1272d8f1619a52e4d1301fa5830ff9d283f8dd6a39e76e0fe78a36e90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dc6164c1272d8f1619a52e4d1301fa5830ff9d283f8dd6a39e76e0fe78a36e90"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling orml-utilities v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stderr]     --> src/fixed_u128.rs:1152:20
[INFO] [stderr]      |
[INFO] [stderr] 1152 |         let serialized = serde_json::to_string(&two_point_five).unwrap();
[INFO] [stderr]      |                          ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stderr]     --> src/fixed_u128.rs:1154:33
[INFO] [stderr]      |
[INFO] [stderr] 1154 |         let deserialized: FixedU128 = serde_json::from_str(&serialized).unwrap();
[INFO] [stderr]      |                                       ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `orml-utilities`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dc6164c1272d8f1619a52e4d1301fa5830ff9d283f8dd6a39e76e0fe78a36e90"`
[INFO] running `"docker" "rm" "-f" "dc6164c1272d8f1619a52e4d1301fa5830ff9d283f8dd6a39e76e0fe78a36e90"`
[INFO] [stdout] dc6164c1272d8f1619a52e4d1301fa5830ff9d283f8dd6a39e76e0fe78a36e90