[INFO] updating cached repository https://github.com/disDeal/Algorithm-archive
[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] 004bb213a97bddab7e664c68f719d9fe932d22ae
[INFO] checking disDeal/Algorithm-archive against master#4007d4ef26eab44bdabc2b7574d032152264d3ad for pr-66919
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2FAlgorithm-archive" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/disDeal/Algorithm-archive on toolchain 4007d4ef26eab44bdabc2b7574d032152264d3ad
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/disDeal/Algorithm-archive
[INFO] finished tweaking git repo https://github.com/disDeal/Algorithm-archive
[INFO] tweaked toml for git repo https://github.com/disDeal/Algorithm-archive written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/disDeal/Algorithm-archive already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "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] f98afa9c10e273e6667a86c33beeaf093f7e3262e571f3a86d0035195b83b3f8
[INFO] running `"docker" "start" "-a" "f98afa9c10e273e6667a86c33beeaf093f7e3262e571f3a86d0035195b83b3f8"`
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking algorithm_arhive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `fsize`
[INFO] [stderr]   --> src/fft.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let fsize = size as f64;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_fsize`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `array` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> src/fft.rs:110:33
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 array[k + j] -= array[k + j + stride / 2] - array[k + j];
[INFO] [stderr]     |                 ----------------^^^^^-----------------------------------
[INFO] [stderr]     |                 |               |
[INFO] [stderr]     |                 |               immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `array` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> src/fft.rs:110:61
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 array[k + j] -= array[k + j + stride / 2] - array[k + j];
[INFO] [stderr]     |                 --------------------------------------------^^^^^-------
[INFO] [stderr]     |                 |                                           |
[INFO] [stderr]     |                 |                                           immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: could not compile `algorithm_arhive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `fsize`
[INFO] [stderr]   --> src/fft.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let fsize = size as f64;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_fsize`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `array` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> src/fft.rs:110:33
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 array[k + j] -= array[k + j + stride / 2] - array[k + j];
[INFO] [stderr]     |                 ----------------^^^^^-----------------------------------
[INFO] [stderr]     |                 |               |
[INFO] [stderr]     |                 |               immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `array` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> src/fft.rs:110:61
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 array[k + j] -= array[k + j + stride / 2] - array[k + j];
[INFO] [stderr]     |                 --------------------------------------------^^^^^-------
[INFO] [stderr]     |                 |                                           |
[INFO] [stderr]     |                 |                                           immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: could not compile `algorithm_arhive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f98afa9c10e273e6667a86c33beeaf093f7e3262e571f3a86d0035195b83b3f8"`
[INFO] running `"docker" "rm" "-f" "f98afa9c10e273e6667a86c33beeaf093f7e3262e571f3a86d0035195b83b3f8"`
[INFO] [stdout] f98afa9c10e273e6667a86c33beeaf093f7e3262e571f3a86d0035195b83b3f8