[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] checking bellskinling/rust_big_number against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbellskinling%2Frust_big_number" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bellskinling/rust_big_number on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", 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/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: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f18770b80b25c3b52cc7351ec9cb24a8db3228210f8c9a94871c72d98025c0ee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f18770b80b25c3b52cc7351ec9cb24a8db3228210f8c9a94871c72d98025c0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f18770b80b25c3b52cc7351ec9cb24a8db3228210f8c9a94871c72d98025c0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18770b80b25c3b52cc7351ec9cb24a8db3228210f8c9a94871c72d98025c0ee", kill_on_drop: false }`
[INFO] [stdout] f18770b80b25c3b52cc7351ec9cb24a8db3228210f8c9a94871c72d98025c0ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5e07491f51e6ee2da498bc189a52c6567691cd1721bd3a9c0c2a0fffcd95a90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d5e07491f51e6ee2da498bc189a52c6567691cd1721bd3a9c0c2a0fffcd95a90", kill_on_drop: false }`
[INFO] [stderr]     Checking 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[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[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[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] 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[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[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[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[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] 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[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[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[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] 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[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[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[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[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] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 146:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     pub fn get_iter(&mut self, pos: usize, len: usize) -> BigNumberIter {
[INFO] [stdout] 147 | |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout] 148 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::slice::Iter<'static, _>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::slice::Iter<'_, _>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 150:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | /     pub fn get_iter_mut(&mut self, pos: usize, len: usize) -> BigNumberIterMut {
[INFO] [stdout] 151 | |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout] 152 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::slice::IterMut<'static, _>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::slice::IterMut<'_, _>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:155:21
[INFO] [stdout]     |
[INFO] [stdout] 155 |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 154:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     pub fn get_iter_rev(&self, pos: usize, len: usize) -> BigNumberRevIter {
[INFO] [stdout] 155 | |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::Iter<'static, _>>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::Iter<'_, _>>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 158:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | /     pub fn get_iter_rev_mut(&mut self, pos: usize, len: usize) -> BigNumberRevIterMut {
[INFO] [stdout] 159 | |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout] 160 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::IterMut<'static, _>>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::IterMut<'_, _>>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0106, E0495, 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`.
[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] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 146:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     pub fn get_iter(&mut self, pos: usize, len: usize) -> BigNumberIter {
[INFO] [stdout] 147 | |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout] 148 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         self.buffer.iter().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::slice::Iter<'static, _>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::slice::Iter<'_, _>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 150:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | /     pub fn get_iter_mut(&mut self, pos: usize, len: usize) -> BigNumberIterMut {
[INFO] [stdout] 151 | |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout] 152 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         self.buffer.iter_mut().skip(pos).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::slice::IterMut<'static, _>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::slice::IterMut<'_, _>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:155:21
[INFO] [stdout]     |
[INFO] [stdout] 155 |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 154:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     pub fn get_iter_rev(&self, pos: usize, len: usize) -> BigNumberRevIter {
[INFO] [stdout] 155 | |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         self.buffer.iter().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::Iter<'static, _>>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::Iter<'_, _>>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter in function call due to conflicting requirements
[INFO] [stdout]    --> src/big_number_core/big_number.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the method body at 158:5...
[INFO] [stdout]    --> src/big_number_core/big_number.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | /     pub fn get_iter_rev_mut(&mut self, pos: usize, len: usize) -> BigNumberRevIterMut {
[INFO] [stdout] 159 | |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout] 160 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/big_number_core/big_number.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/big_number_core/big_number.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         self.buffer.iter_mut().rev().skip(self.buffer.len() - pos - 1).take(len)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::IterMut<'static, _>>>>`
[INFO] [stdout]                found `std::iter::Take<std::iter::Skip<std::iter::Rev<std::slice::IterMut<'_, _>>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_integer_iter_mut` found for struct `big_number_core::big_number::BigNumber` in the current scope
[INFO] [stdout]    --> src/big_number_core/big_number.rs:278:37
[INFO] [stdout]     |
[INFO] [stdout] 9   | pub struct BigNumber {
[INFO] [stdout]     | -------------------- method `get_integer_iter_mut` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 278 |             let mut i_iter = result.get_integer_iter_mut();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `get_iter_rev_mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_fraction_iter_mut` found for struct `big_number_core::big_number::BigNumber` in the current scope
[INFO] [stdout]    --> src/big_number_core/big_number.rs:283:37
[INFO] [stdout]     |
[INFO] [stdout] 9   | pub struct BigNumber {
[INFO] [stdout]     | -------------------- method `get_fraction_iter_mut` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 283 |             let mut i_iter = result.get_fraction_iter_mut();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^ method not found in `big_number_core::big_number::BigNumber`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_integer_iter_mut` found for struct `big_number_core::big_number::BigNumber` in the current scope
[INFO] [stdout]    --> src/big_number_core/big_number.rs:301:37
[INFO] [stdout]     |
[INFO] [stdout] 9   | pub struct BigNumber {
[INFO] [stdout]     | -------------------- method `get_integer_iter_mut` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 301 |             let mut i_iter = result.get_integer_iter_mut();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `get_iter_rev_mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_fraction_iter_mut` found for struct `big_number_core::big_number::BigNumber` in the current scope
[INFO] [stdout]    --> src/big_number_core/big_number.rs:307:37
[INFO] [stdout]     |
[INFO] [stdout] 9   | pub struct BigNumber {
[INFO] [stdout]     | -------------------- method `get_fraction_iter_mut` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 307 |             let mut f_iter = result.get_fraction_iter_mut();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^ method not found in `big_number_core::big_number::BigNumber`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `big_number_core::big_number::BigNumber` in the current scope
[INFO] [stdout]    --> src/big_number_core/big_number.rs:314:24
[INFO] [stdout]     |
[INFO] [stdout] 9   | pub struct BigNumber {
[INFO] [stdout]     | -------------------- function or associated item `new` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 314 |     let b = BigNumber::new(s, -1);
[INFO] [stdout]     |                        ^^^ function or associated item not found in `big_number_core::big_number::BigNumber`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 17 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0106, E0495, E0599, E0637.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d5e07491f51e6ee2da498bc189a52c6567691cd1721bd3a9c0c2a0fffcd95a90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e07491f51e6ee2da498bc189a52c6567691cd1721bd3a9c0c2a0fffcd95a90", kill_on_drop: false }`
[INFO] [stdout] d5e07491f51e6ee2da498bc189a52c6567691cd1721bd3a9c0c2a0fffcd95a90
