[INFO] cloning repository https://github.com/bellskinling/rust_big_number
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bellskinling/rust_big_number" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbellskinling%2Frust_big_number", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbellskinling%2Frust_big_number'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a820d69fd7f61e7c4b02f4aaefa206527030107c
[INFO] testing bellskinling/rust_big_number against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbellskinling%2Frust_big_number" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bellskinling/rust_big_number on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bellskinling/rust_big_number
[INFO] finished tweaking git repo https://github.com/bellskinling/rust_big_number
[INFO] tweaked toml for git repo https://github.com/bellskinling/rust_big_number written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bellskinling/rust_big_number already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 464ca10c8070f4670cee655df239a7e20343da44a04000c329eb845db66b62b6
[INFO] running `Command { std: "docker" "start" "-a" "464ca10c8070f4670cee655df239a7e20343da44a04000c329eb845db66b62b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "464ca10c8070f4670cee655df239a7e20343da44a04000c329eb845db66b62b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464ca10c8070f4670cee655df239a7e20343da44a04000c329eb845db66b62b6", kill_on_drop: false }`
[INFO] [stdout] 464ca10c8070f4670cee655df239a7e20343da44a04000c329eb845db66b62b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99e5ecface0e4757c96df31441e7ae979df6e78210b2d5d57c4a494fb0b69b25
[INFO] running `Command { std: "docker" "start" "-a" "99e5ecface0e4757c96df31441e7ae979df6e78210b2d5d57c4a494fb0b69b25", kill_on_drop: false }`
[INFO] [stderr]    Compiling big_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0637]: `'_` cannot be used here
[INFO] [stdout]   --> src/big_number_core/big_number.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type BigNumberRevIterMut<'_> = iter::Take<iter::Skip<iter::Rev<slice::IterMut<'_, i32>>>>;
[INFO] [stdout]    |                              ^^ `'_` is a reserved lifetime name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/big_number_core/big_number.rs:23:83
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type BigNumberRevIterMut<'_> = iter::Take<iter::Skip<iter::Rev<slice::IterMut<'_, i32>>>>;
[INFO] [stdout]    |                                                                                   ^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type BigNumberRevIterMut<'a, '_> = iter::Take<iter::Skip<iter::Rev<slice::IterMut<'a, i32>>>>;
[INFO] [stdout]    |                              +++                                                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0637]: `'_` cannot be used here
[INFO] [stdout]   --> src/big_number_core/big_number.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type BigNumberRevIter<'_> = iter::Take<iter::Skip<iter::Rev<slice::Iter<'_, i32>>>>;
[INFO] [stdout]    |                           ^^ `'_` is a reserved lifetime name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/big_number_core/big_number.rs:24:77
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type BigNumberRevIter<'_> = iter::Take<iter::Skip<iter::Rev<slice::Iter<'_, i32>>>>;
[INFO] [stdout]    |                                                                             ^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type BigNumberRevIter<'a, '_> = iter::Take<iter::Skip<iter::Rev<slice::Iter<'a, i32>>>>;
[INFO] [stdout]    |                           +++                                                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0637]: `'_` cannot be used here
[INFO] [stdout]   --> src/big_number_core/big_number.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub type BigNumberIterMut<'_> = iter::Take<iter::Skip<slice::IterMut<'_, ItemType>>>;
[INFO] [stdout]    |                           ^^ `'_` is a reserved lifetime name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/big_number_core/big_number.rs:26:70
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub type BigNumberIterMut<'_> = iter::Take<iter::Skip<slice::IterMut<'_, ItemType>>>;
[INFO] [stdout]    |                                                                      ^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub type BigNumberIterMut<'a, '_> = iter::Take<iter::Skip<slice::IterMut<'a, ItemType>>>;
[INFO] [stdout]    |                           +++                                            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0637]: `'_` cannot be used here
[INFO] [stdout]   --> src/big_number_core/big_number.rs:27:24
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type BigNumberIter<'_> = iter::Take<iter::Skip<slice::Iter<'_, ItemType>>>;
[INFO] [stdout]    |                        ^^ `'_` is a reserved lifetime name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/big_number_core/big_number.rs:27:64
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type BigNumberIter<'_> = iter::Take<iter::Skip<slice::Iter<'_, ItemType>>>;
[INFO] [stdout]    |                                                                ^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type BigNumberIter<'a, '_> = iter::Take<iter::Skip<slice::Iter<'a, ItemType>>>;
[INFO] [stdout]    |                        +++                                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/big_number_core/big_number.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `from_digit`, `pow10`, `to_base_length`, `to_digit`
[INFO] [stdout]  --> src/big_number_core/big_number.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::tools::{to_base_length, from_digit, to_digit, pow10};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/big_number_core/tools.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::big_number::BigNumber`
[INFO] [stdout]  --> src/big_number_core/tools.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::big_number::BigNumber;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::big_number::Sign`
[INFO] [stdout]  --> src/big_number_core/tools.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::big_number::Sign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0106, E0637.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `big_number` (lib) due to 9 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "99e5ecface0e4757c96df31441e7ae979df6e78210b2d5d57c4a494fb0b69b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e5ecface0e4757c96df31441e7ae979df6e78210b2d5d57c4a494fb0b69b25", kill_on_drop: false }`
[INFO] [stdout] 99e5ecface0e4757c96df31441e7ae979df6e78210b2d5d57c4a494fb0b69b25
