[INFO] updating cached repository https://github.com/ComplexPlane/strand_match
[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] 739b235916ae7e8bca9d343089945cc26623b234
[INFO] checking ComplexPlane/strand_match against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FComplexPlane%2Fstrand_match" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ComplexPlane/strand_match on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ComplexPlane/strand_match
[INFO] finished tweaking git repo https://github.com/ComplexPlane/strand_match
[INFO] tweaked toml for git repo https://github.com/ComplexPlane/strand_match written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ComplexPlane/strand_match already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] 4607bfaa37d84b5d14fd4d4ae4cc5d18f6e7178b8c568ff9addd3070cb6fb59f
[INFO] running `"docker" "start" "-a" "4607bfaa37d84b5d14fd4d4ae4cc5d18f6e7178b8c568ff9addd3070cb6fb59f"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking xmlparser v0.10.0
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]     Checking roxmltree v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking strand_match v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0369]: binary operation `==` cannot be applied to type `std::result::Result<u32, failure::error::Error>`
[INFO] [stderr]   --> src/util.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         assert_eq!(parse_u32_hex("0x52ac0"), Some(338624));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         std::result::Result<u32, failure::error::Error>
[INFO] [stderr]    |         std::option::Option<{integer}>
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0369]: binary operation `==` cannot be applied to type `std::result::Result<u32, failure::error::Error>`
[INFO] [stderr]   --> src/util.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         assert_eq!(parse_u32_hex("0X52ac0"), Some(338624));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         std::result::Result<u32, failure::error::Error>
[INFO] [stderr]    |         std::option::Option<{integer}>
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0369]: binary operation `==` cannot be applied to type `std::result::Result<u32, failure::error::Error>`
[INFO] [stderr]   --> src/util.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         assert_eq!(parse_u32_hex("42"), Some(66));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         std::result::Result<u32, failure::error::Error>
[INFO] [stderr]    |         std::option::Option<{integer}>
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0369`.
[INFO] [stderr] error: could not compile `strand_match`.
[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] warning: method is never used: `debug_export`
[INFO] [stderr]   --> src/function.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn debug_export(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4607bfaa37d84b5d14fd4d4ae4cc5d18f6e7178b8c568ff9addd3070cb6fb59f"`
[INFO] running `"docker" "rm" "-f" "4607bfaa37d84b5d14fd4d4ae4cc5d18f6e7178b8c568ff9addd3070cb6fb59f"`
[INFO] [stdout] 4607bfaa37d84b5d14fd4d4ae4cc5d18f6e7178b8c568ff9addd3070cb6fb59f
