[INFO] cloning repository https://github.com/1925chicken/library-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1925chicken/library-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1925chicken%2Flibrary-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1925chicken%2Flibrary-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3350a36647a77f4cf41f6ccdd2d401491742bd8
[INFO] testing 1925chicken/library-rs against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1925chicken%2Flibrary-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  93% (878/943)
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[INFO] validating manifest of git repo https://github.com/1925chicken/library-rs on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/1925chicken/library-rs
[INFO] finished tweaking git repo https://github.com/1925chicken/library-rs
[INFO] tweaked toml for git repo https://github.com/1925chicken/library-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/1925chicken/library-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded alga v0.9.3
[INFO] [stderr]   Downloaded cli_test_dir v0.1.7
[INFO] [stderr]   Downloaded proconio-derive v0.1.5
[INFO] [stderr]   Downloaded proconio v0.3.6
[INFO] [stderr]   Downloaded num-derive v0.3.0
[INFO] [stderr]   Downloaded syn v0.15.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6809902482205c9a4047a0ce916861ec9dfde2266a11b7813d8887f20660019
[INFO] running `Command { std: "docker" "start" "-a" "f6809902482205c9a4047a0ce916861ec9dfde2266a11b7813d8887f20660019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6809902482205c9a4047a0ce916861ec9dfde2266a11b7813d8887f20660019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6809902482205c9a4047a0ce916861ec9dfde2266a11b7813d8887f20660019", kill_on_drop: false }`
[INFO] [stdout] f6809902482205c9a4047a0ce916861ec9dfde2266a11b7813d8887f20660019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ddaca641711dfbac6370845952bc771e7747a5c3858bfbf52a6b681495f8186
[INFO] running `Command { std: "docker" "start" "-a" "0ddaca641711dfbac6370845952bc771e7747a5c3858bfbf52a6b681495f8186", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling proconio-derive v0.1.5
[INFO] [stderr]    Compiling proconio v0.3.6
[INFO] [stderr]    Compiling libarary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/bin/pollards_rho_bigint.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::*;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/bin/miller_rabbin_bigint.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::*;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]    --> src/bin/pollards_rho_bigint.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 |             a = rand::thread_rng()
[INFO] [stdout]     |                 ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]    --> src/bin/pollards_rho_bigint.rs:161:17
[INFO] [stdout]     |
[INFO] [stdout] 161 |             a = rand::thread_rng().gen_range(1, k).to_bigint().unwrap();
[INFO] [stdout]     |                 ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/bin/Jacobi_symbol.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::*;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::ToPrimitive`
[INFO] [stdout]  --> src/bin/Jacobi_symbol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num::ToPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]   --> src/bin/miller_rabbin_bigint.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |             a = rand::thread_rng()
[INFO] [stdout]    |                 ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `Jacobi_symbol`
[INFO] [stdout]   --> src/bin/Jacobi_symbol.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #[allow(unused_imports)]
[INFO] [stdout] 2  | | use num::integer::*;
[INFO] [stdout] 3  | | use num::ToPrimitive;
[INFO] [stdout] 4  | | use num_bigint::*;
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     ans
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `src/bin/Jacobi_symbol.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]   --> src/bin/miller_rabbin_bigint.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             a = rand::thread_rng().gen_range(1, k).to_bigint().unwrap();
[INFO] [stdout]    |                 ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BigUint`, `ToBigUint`
[INFO] [stdout]  --> src/bin/miller_rabbin_bigint.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num_bigint::{BigInt, BigUint, ToBigInt, ToBigUint};
[INFO] [stdout]   |                          ^^^^^^^            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/bin/mod_sqrt_bigint.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::*;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `mod_sqrt`
[INFO] [stdout]   --> src/bin/mod_sqrt.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / fn mod_sqrt(a: i128, p: i128) -> i128 {
[INFO] [stdout] 2  | |     if quadratic_residue(a, p) == -1 {
[INFO] [stdout] 3  | |         println!("no answer");
[INFO] [stdout] 4  | |         std::process::exit(0)
[INFO] [stdout] ...  |
[INFO] [stdout] 76 | |     ret
[INFO] [stdout] 77 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `src/bin/mod_sqrt.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::ToPrimitive`
[INFO] [stdout]  --> src/bin/mod_sqrt_bigint.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num::ToPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INF`
[INFO] [stdout]    --> src/bin/miller_rabin.rs:166:1
[INFO] [stdout]     |
[INFO] [stdout] 166 | const INF: u64 = 1u64 << 60;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libarary` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/bin/miller_rabbin_bigint.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     if n.clone() % 2 == Zero::zero() {
[INFO] [stdout]    |                  ^ cannot infer type for type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `BigInt: Rem<{integer}>` found in the `num_bigint` crate:
[INFO] [stdout]            - impl Rem<i128> for BigInt;
[INFO] [stdout]            - impl Rem<i16> for BigInt;
[INFO] [stdout]            - impl Rem<i32> for BigInt;
[INFO] [stdout]            - impl Rem<i64> for BigInt;
[INFO] [stdout]            and 8 more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             (\$(\$ty:tt,)*) => {
[INFO] [stdout]    |              ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/bin/miller_rabbin_bigint.rs:34:31
[INFO] [stdout]    |
[INFO] [stdout] 34 |         return n.clone() == 2.to_bigint().unwrap();
[INFO] [stdout]    |                             --^^^^^^^^^--
[INFO] [stdout]    |                             | |
[INFO] [stdout]    |                             | cannot infer type for type `{integer}`
[INFO] [stdout]    |                             this method call resolves to `Option<BigInt>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `{integer}: ToBigInt` found in the `num_bigint` crate:
[INFO] [stdout]            - impl ToBigInt for i128;
[INFO] [stdout]            - impl ToBigInt for i16;
[INFO] [stdout]            - impl ToBigInt for i32;
[INFO] [stdout]            - impl ToBigInt for i64;
[INFO] [stdout]            and 8 more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             (\$(\$ty:tt,)*) => {
[INFO] [stdout]    |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     \$(
[INFO] [stdout]    |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     pub fn \$ty (&mut self) -> \$ty {
[INFO] [stdout]    |                            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:65:48
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     pub fn \$ty (&mut self) -> \$ty {
[INFO] [stdout]    |                                                ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: \
[INFO] [stdout]   --> src/main.rs:66:37
[INFO] [stdout]    |
[INFO] [stdout] 66 |                         self.read::<\$ty>()
[INFO] [stdout]    |                                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `g` is never read
[INFO] [stdout]   --> src/bin/pollards_rho.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (mut x, mut r, mut q, mut g, mut ys, mut m) = (1, 1, 1, 1, 1, 1);
[INFO] [stdout]    |                                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ys` is never read
[INFO] [stdout]   --> src/bin/pollards_rho.rs:50:42
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (mut x, mut r, mut q, mut g, mut ys, mut m) = (1, 1, 1, 1, 1, 1);
[INFO] [stdout]    |                                          ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `cnt` is assigned to, but never used
[INFO] [stdout]   --> src/bin/pollards_rho.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |             let mut cnt = 0;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_cnt` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/bin/pollards_rho_bigint.rs:148:18
[INFO] [stdout]     |
[INFO] [stdout] 148 |     if n.clone() % 2 == Zero::zero() {
[INFO] [stdout]     |                  ^ cannot infer type for type `{integer}`
[INFO] [stdout]     |
[INFO] [stdout]     = note: multiple `impl`s satisfying `num::BigInt: Rem<{integer}>` found in the `num_bigint` crate:
[INFO] [stdout]             - impl Rem<i128> for num::BigInt;
[INFO] [stdout]             - impl Rem<i16> for num::BigInt;
[INFO] [stdout]             - impl Rem<i32> for num::BigInt;
[INFO] [stdout]             - impl Rem<i64> for num::BigInt;
[INFO] [stdout]             and 8 more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cnt` is never read
[INFO] [stdout]   --> src/bin/pollards_rho.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 cnt = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/bin/pollards_rho_bigint.rs:149:31
[INFO] [stdout]     |
[INFO] [stdout] 149 |         return n.clone() == 2.to_bigint().unwrap();
[INFO] [stdout]     |                             --^^^^^^^^^--
[INFO] [stdout]     |                             | |
[INFO] [stdout]     |                             | cannot infer type for type `{integer}`
[INFO] [stdout]     |                             this method call resolves to `Option<num::BigInt>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: multiple `impl`s satisfying `{integer}: num_bigint::ToBigInt` found in the `num_bigint` crate:
[INFO] [stdout]             - impl num_bigint::ToBigInt for i128;
[INFO] [stdout]             - impl num_bigint::ToBigInt for i16;
[INFO] [stdout]             - impl num_bigint::ToBigInt for i32;
[INFO] [stdout]             - impl num_bigint::ToBigInt for i64;
[INFO] [stdout]             and 8 more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/pollards_rho.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (mut x, mut r, mut q, mut g, mut ys, mut m) = (1, 1, 1, 1, 1, 1);
[INFO] [stdout]    |          ----^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/pollards_rho.rs:50:46
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let (mut x, mut r, mut q, mut g, mut ys, mut m) = (1, 1, 1, 1, 1, 1);
[INFO] [stdout]    |                                              ----^
[INFO] [stdout]    |                                              |
[INFO] [stdout]    |                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/pollards_rho.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut x = y;
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/pollards_rho.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let mut lim = std::cmp::min(m, r - k);
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0283, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/pollards_rho.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let mut n = read.i64();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0283, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factrise_map`
[INFO] [stdout]   --> src/bin/pollards_rho.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn factrise_map(n: i128) -> std::collections::HashMap<i128, i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INF`
[INFO] [stdout]    --> src/bin/pollards_rho.rs:355:1
[INFO] [stdout]     |
[INFO] [stdout] 355 | const INF: i64 = 1i64 << 60;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0ddaca641711dfbac6370845952bc771e7747a5c3858bfbf52a6b681495f8186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddaca641711dfbac6370845952bc771e7747a5c3858bfbf52a6b681495f8186", kill_on_drop: false }`
[INFO] [stdout] 0ddaca641711dfbac6370845952bc771e7747a5c3858bfbf52a6b681495f8186