[INFO] crate num-complex 0.2.3 is already in cache
[INFO] checking num-complex-0.2.3 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate num-complex 0.2.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate num-complex 0.2.3 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate num-complex 0.2.3
[INFO] finished tweaking crates.io crate num-complex 0.2.3
[INFO] tweaked toml for crates.io crate num-complex 0.2.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 332ff5841fd0b4bd184c91180a2d837c080106d20ecb0c618d97a3f8cca02e81
[INFO] running `"docker" "start" "-a" "332ff5841fd0b4bd184c91180a2d837c080106d20ecb0c618d97a3f8cca02e81"`
[INFO] [stderr]    Compiling num-complex v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1355:14
[INFO] [stderr]      |
[INFO] [stderr] 1355 |     let re = try!(from(re).map_err(ParseComplexError::from_error));
[INFO] [stderr]      |              ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1368:14
[INFO] [stderr]      |
[INFO] [stderr] 1368 |     let im = try!(from(im).map_err(ParseComplexError::from_error));
[INFO] [stderr]      |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1355:14
[INFO] [stderr]      |
[INFO] [stderr] 1355 |     let re = try!(from(re).map_err(ParseComplexError::from_error));
[INFO] [stderr]      |              ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1368:14
[INFO] [stderr]      |
[INFO] [stderr] 1368 |     let im = try!(from(im).map_err(ParseComplexError::from_error));
[INFO] [stderr]      |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]     --> src/lib.rs:1489:54
[INFO] [stderr]      |
[INFO] [stderr] 1489 |             ComplexErrorKind::ParseError(ref e) => e.description(),
[INFO] [stderr]      |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]     --> src/lib.rs:1489:54
[INFO] [stderr]      |
[INFO] [stderr] 1489 |             ComplexErrorKind::ParseError(ref e) => e.description(),
[INFO] [stderr]      |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `"docker" "inspect" "332ff5841fd0b4bd184c91180a2d837c080106d20ecb0c618d97a3f8cca02e81"`
[INFO] running `"docker" "rm" "-f" "332ff5841fd0b4bd184c91180a2d837c080106d20ecb0c618d97a3f8cca02e81"`
[INFO] [stdout] 332ff5841fd0b4bd184c91180a2d837c080106d20ecb0c618d97a3f8cca02e81