[INFO] fetching crate num-primes 0.1.2...
[INFO] testing num-primes-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate num-primes 0.1.2 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate num-primes 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate num-primes 0.1.2
[INFO] finished tweaking crates.io crate num-primes 0.1.2
[INFO] tweaked toml for crates.io crate num-primes 0.1.2 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate crates.io crate num-primes 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae851c9145c4d8668d20208a4febafcadea22753860ecfad36a3fba703441d8b
[INFO] running `Command { std: "docker" "start" "-a" "ae851c9145c4d8668d20208a4febafcadea22753860ecfad36a3fba703441d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae851c9145c4d8668d20208a4febafcadea22753860ecfad36a3fba703441d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae851c9145c4d8668d20208a4febafcadea22753860ecfad36a3fba703441d8b", kill_on_drop: false }`
[INFO] [stdout] ae851c9145c4d8668d20208a4febafcadea22753860ecfad36a3fba703441d8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d602347cedd6469640a8b61decee28d91a8d9812de1f72c11f77dcf17cf0fc03
[INFO] running `Command { std: "docker" "start" "-a" "d602347cedd6469640a8b61decee28d91a8d9812de1f72c11f77dcf17cf0fc03", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling num-primes v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `vsn`
[INFO] [stdout]    --> src/lib.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |         return vsn(m,n,c);
[INFO] [stdout]     |                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/lib.rs:459:13
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut rng = rand::thread_rng();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let x = &two;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/lib.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut y = &zero;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:470:13
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let mut i: usize = 0usize;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]    --> src/lib.rs:471:13
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut counter: usize = 10usize;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:457:20
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/lib.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             i = i + 2usize;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:457:16
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[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/lib.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut rng = rand::thread_rng();
[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/lib.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut y = &zero;
[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/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let mut i: usize = 0usize;
[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/lib.rs:471:9
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut counter: usize = 10usize;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_safe_prime_add`
[INFO] [stdout]    --> src/lib.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn is_safe_prime_add(number: &BigUint) -> bool {    
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pollard_rho`
[INFO] [stdout]    --> src/lib.rs:457:4
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "d602347cedd6469640a8b61decee28d91a8d9812de1f72c11f77dcf17cf0fc03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d602347cedd6469640a8b61decee28d91a8d9812de1f72c11f77dcf17cf0fc03", kill_on_drop: false }`
[INFO] [stdout] d602347cedd6469640a8b61decee28d91a8d9812de1f72c11f77dcf17cf0fc03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8b0b91c678603c9d1b9d814c50af8830ba33820e83838b685ff666aeb607429
[INFO] running `Command { std: "docker" "start" "-a" "b8b0b91c678603c9d1b9d814c50af8830ba33820e83838b685ff666aeb607429", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-primes v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `vsn`
[INFO] [stdout]    --> src/lib.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |         return vsn(m,n,c);
[INFO] [stdout]     |                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/lib.rs:459:13
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut rng = rand::thread_rng();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let x = &two;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/lib.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut y = &zero;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:470:13
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let mut i: usize = 0usize;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]    --> src/lib.rs:471:13
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut counter: usize = 10usize;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:457:20
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/lib.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             i = i + 2usize;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:457:16
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[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/lib.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut rng = rand::thread_rng();
[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/lib.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut y = &zero;
[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/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let mut i: usize = 0usize;
[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/lib.rs:471:9
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut counter: usize = 10usize;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_safe_prime_add`
[INFO] [stdout]    --> src/lib.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn is_safe_prime_add(number: &BigUint) -> bool {    
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pollard_rho`
[INFO] [stdout]    --> src/lib.rs:457:4
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `vsn`
[INFO] [stdout]    --> src/lib.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |         return vsn(m,n,c);
[INFO] [stdout]     |                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/lib.rs:459:13
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut rng = rand::thread_rng();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let x = &two;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/lib.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut y = &zero;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:470:13
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let mut i: usize = 0usize;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]    --> src/lib.rs:471:13
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut counter: usize = 10usize;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:457:20
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/lib.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             i = i + 2usize;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:457:16
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[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/lib.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut rng = rand::thread_rng();
[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/lib.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut y = &zero;
[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/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let mut i: usize = 0usize;
[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/lib.rs:471:9
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut counter: usize = 10usize;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_safe_prime_add`
[INFO] [stdout]    --> src/lib.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn is_safe_prime_add(number: &BigUint) -> bool {    
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pollard_rho`
[INFO] [stdout]    --> src/lib.rs:457:4
[INFO] [stdout]     |
[INFO] [stdout] 457 | fn pollard_rho(mut n: BigUint) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `num_primes::Verification::is_very_smooth_number`
[INFO] [stdout]   --> examples/vsn.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let result: bool = Verification::is_very_smooth_number(&x,31.0,5);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `num_primes::Verification::is_very_smooth_number`
[INFO] [stdout]   --> tests/very_smooth_number.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let result: bool = Verification::is_very_smooth_number(&x,31.0,5);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "b8b0b91c678603c9d1b9d814c50af8830ba33820e83838b685ff666aeb607429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b0b91c678603c9d1b9d814c50af8830ba33820e83838b685ff666aeb607429", kill_on_drop: false }`
[INFO] [stdout] b8b0b91c678603c9d1b9d814c50af8830ba33820e83838b685ff666aeb607429
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 368c08d53d6516b5c361760e1f427c85737410f5c5b3698aa6b9bada6dfcf39a
[INFO] running `Command { std: "docker" "start" "-a" "368c08d53d6516b5c361760e1f427c85737410f5c5b3698aa6b9bada6dfcf39a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated function `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:459:13
[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:468:13
[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:470:13
[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:471:13
[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:457:20
[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: `num-primes` (lib) generated 15 warnings
[INFO] [stderr] warning: `num-primes` (lib test) generated 15 warnings (15 duplicates)
[INFO] [stderr] warning: use of deprecated associated function `num_primes::Verification::is_very_smooth_number`
[INFO] [stderr]   --> examples/vsn.rs:10:38
[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: use of deprecated associated function `num_primes::Verification::is_very_smooth_number`
[INFO] [stderr]   --> tests/very_smooth_number.rs:11:38
[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: `num-primes` (example "vsn") generated 1 warning
[INFO] [stderr] warning: `num-primes` (test "very_smooth_number") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.51s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/num_primes-23e96a0840b25e52)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test prime_factor ... ok
[INFO] [stdout] test generate ... ok
[INFO] [stdout] test generate_safe_prime has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "368c08d53d6516b5c361760e1f427c85737410f5c5b3698aa6b9bada6dfcf39a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368c08d53d6516b5c361760e1f427c85737410f5c5b3698aa6b9bada6dfcf39a", kill_on_drop: false }`
[INFO] [stdout] 368c08d53d6516b5c361760e1f427c85737410f5c5b3698aa6b9bada6dfcf39a
