[INFO] fetching crate num-primes 0.1.1...
[INFO] checking num-primes-0.1.1 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate num-primes 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate num-primes 0.1.1 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate num-primes 0.1.1
[INFO] finished tweaking crates.io crate num-primes 0.1.1
[INFO] tweaked toml for crates.io crate num-primes 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate num-primes 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] 2bd0f05d67d8425f7334b5ea1ff2ea05a5399e31666b9098775f8c99d37d7f0c
[INFO] running `"docker" "start" "-a" "2bd0f05d67d8425f7334b5ea1ff2ea05a5399e31666b9098775f8c99d37d7f0c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking num-primes v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'vsn'
[INFO] [stderr]    --> src/lib.rs:217:16
[INFO] [stderr]     |
[INFO] [stderr] 217 |         return vsn(m,n,c);
[INFO] [stderr]     |                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'vsn'
[INFO] [stderr]    --> src/lib.rs:217:16
[INFO] [stderr]     |
[INFO] [stderr] 217 |         return vsn(m,n,c);
[INFO] [stderr]     |                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/lib.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:467:9
[INFO] [stderr]     |
[INFO] [stderr] 467 |     let x = &two;
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/lib.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |     let mut y = &zero;
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:470:9
[INFO] [stderr]     |
[INFO] [stderr] 470 |     let mut i: usize = 0usize;
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `counter`
[INFO] [stderr]    --> src/lib.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |     let mut counter: usize = 10usize;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:457:16
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stderr]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `i` is never read
[INFO] [stderr]    --> src/lib.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |             i = i + 2usize;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:457:16
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stderr]     |                ----^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |     let mut y = &zero;
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:470:9
[INFO] [stderr]     |
[INFO] [stderr] 470 |     let mut i: usize = 0usize;
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |     let mut counter: usize = 10usize;
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_safe_prime_add`
[INFO] [stderr]    --> src/lib.rs:401:4
[INFO] [stderr]     |
[INFO] [stderr] 401 | fn is_safe_prime_add(number: &BigUint) -> bool {    
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pollard_rho`
[INFO] [stderr]    --> src/lib.rs:457:4
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/lib.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:467:9
[INFO] [stderr]     |
[INFO] [stderr] 467 |     let x = &two;
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/lib.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |     let mut y = &zero;
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:470:9
[INFO] [stderr]     |
[INFO] [stderr] 470 |     let mut i: usize = 0usize;
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `counter`
[INFO] [stderr]    --> src/lib.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |     let mut counter: usize = 10usize;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:457:16
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stderr]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `i` is never read
[INFO] [stderr]    --> src/lib.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |             i = i + 2usize;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:457:16
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stderr]     |                ----^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |     let mut y = &zero;
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:470:9
[INFO] [stderr]     |
[INFO] [stderr] 470 |     let mut i: usize = 0usize;
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |     let mut counter: usize = 10usize;
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_safe_prime_add`
[INFO] [stderr]    --> src/lib.rs:401:4
[INFO] [stderr]     |
[INFO] [stderr] 401 | fn is_safe_prime_add(number: &BigUint) -> bool {    
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pollard_rho`
[INFO] [stderr]    --> src/lib.rs:457:4
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'num_primes::Verification::is_very_smooth_number'
[INFO] [stderr]   --> tests/very_smooth_number.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let result: bool = Verification::is_very_smooth_number(&x,31.0,5);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'num_primes::Verification::is_very_smooth_number'
[INFO] [stderr]   --> examples/vsn.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let result: bool = Verification::is_very_smooth_number(&x,31.0,5);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.34s
[INFO] running `"docker" "inspect" "2bd0f05d67d8425f7334b5ea1ff2ea05a5399e31666b9098775f8c99d37d7f0c"`
[INFO] running `"docker" "rm" "-f" "2bd0f05d67d8425f7334b5ea1ff2ea05a5399e31666b9098775f8c99d37d7f0c"`
[INFO] [stdout] 2bd0f05d67d8425f7334b5ea1ff2ea05a5399e31666b9098775f8c99d37d7f0c