[INFO] crate rosalind 0.10.0 is already in cache
[INFO] testing rosalind-0.10.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rosalind 0.10.0 into work/builds/worker-10/source
[INFO] validating manifest of crates.io crate rosalind 0.10.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rosalind 0.10.0
[INFO] finished tweaking crates.io crate rosalind 0.10.0
[INFO] tweaked toml for crates.io crate rosalind 0.10.0 written to work/builds/worker-10/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 954b10a8ef62cd5003d1747613c33967d58443e2a9bb3079b8dfb0ccdae409e4
[INFO] running `"docker" "start" "-a" "954b10a8ef62cd5003d1747613c33967d58443e2a9bb3079b8dfb0ccdae409e4"`
[INFO] [stderr]    Compiling rosalind v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prot.rs:109:22
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let amino_acid = try!(codon_into_amino_acid(&rna[left..right]));
[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/prot.rs:138:27
[INFO] [stderr]     |
[INFO] [stderr] 138 |     let possible_codons = try!(amino_acid_into_codon(amino_acid));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prot.rs:144:21
[INFO] [stderr]     |
[INFO] [stderr] 144 |   let stop_codons = try!(amino_acid_into_codon(CODON_STOP_SYMBOL));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/prot.rs:166:14
[INFO] [stderr]     |
[INFO] [stderr] 166 |   let mass = try!(mass_list).iter().fold(0f64, |m, weight| m + weight);
[INFO] [stderr]     |              ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0284]: type annotations required: cannot resolve `<num::BigUint as std::ops::Sub<&_>>::Output == num::BigUint`
[INFO] [stderr]   --> src/fib.rs:73:59
[INFO] [stderr]    |
[INFO] [stderr] 73 |         f = d.get(i - 2).unwrap() + d.get(i - 1).unwrap() - &(One::one());
[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 E0284`.
[INFO] [stderr] error: could not compile `rosalind`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "954b10a8ef62cd5003d1747613c33967d58443e2a9bb3079b8dfb0ccdae409e4"`
[INFO] running `"docker" "rm" "-f" "954b10a8ef62cd5003d1747613c33967d58443e2a9bb3079b8dfb0ccdae409e4"`
[INFO] [stdout] 954b10a8ef62cd5003d1747613c33967d58443e2a9bb3079b8dfb0ccdae409e4