[INFO] fetching crate num-primes 0.2.1... [INFO] checking num-primes-0.2.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141 [INFO] extracting crate num-primes 0.2.1 into /workspace/builds/worker-93/source [INFO] validating manifest of crates.io crate num-primes 0.2.1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate num-primes 0.2.1 [INFO] finished tweaking crates.io crate num-primes 0.2.1 [INFO] tweaked toml for crates.io crate num-primes 0.2.1 written to /workspace/builds/worker-93/source/Cargo.toml [INFO] crate crates.io crate num-primes 0.2.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7268461f0b63f01982286319c10e5a8bf41afd54fd330ea13fdd985caca6702e [INFO] running `Command { std: "docker" "start" "-a" "7268461f0b63f01982286319c10e5a8bf41afd54fd330ea13fdd985caca6702e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7268461f0b63f01982286319c10e5a8bf41afd54fd330ea13fdd985caca6702e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7268461f0b63f01982286319c10e5a8bf41afd54fd330ea13fdd985caca6702e", kill_on_drop: false }` [INFO] [stdout] 7268461f0b63f01982286319c10e5a8bf41afd54fd330ea13fdd985caca6702e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 75f3b6857de8865c3da4803d6bd2b79640ef3d363058dca22d148388ac9bf889 [INFO] running `Command { std: "docker" "start" "-a" "75f3b6857de8865c3da4803d6bd2b79640ef3d363058dca22d148388ac9bf889", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking log v0.4.14 [INFO] [stderr] Checking 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-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking num-primes v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `log::debug` [INFO] [stdout] --> src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use log::debug; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::error` [INFO] [stdout] --> src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use log::error; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::info` [INFO] [stdout] --> src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use log::info; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::debug` [INFO] [stdout] --> src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use log::debug; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::error` [INFO] [stdout] --> src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use log::error; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::info` [INFO] [stdout] --> src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use log::info; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/lib.rs:448:5 [INFO] [stdout] | [INFO] [stdout] 443 | return false [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 448 | return true [INFO] [stdout] | ^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `one_usize` [INFO] [stdout] --> src/lib.rs:370:17 [INFO] [stdout] | [INFO] [stdout] 370 | let one_usize = one.to_usize().unwrap(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_one_usize` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rng` [INFO] [stdout] --> src/lib.rs:509:13 [INFO] [stdout] | [INFO] [stdout] 509 | let mut rng = rand::thread_rng(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rng` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lib.rs:517:9 [INFO] [stdout] | [INFO] [stdout] 517 | 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:518:13 [INFO] [stdout] | [INFO] [stdout] 518 | 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:520:13 [INFO] [stdout] | [INFO] [stdout] 520 | 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:521:13 [INFO] [stdout] | [INFO] [stdout] 521 | 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:507:20 [INFO] [stdout] | [INFO] [stdout] 507 | 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:274:13 [INFO] [stdout] | [INFO] [stdout] 274 | 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: unreachable expression [INFO] [stdout] --> src/lib.rs:448:5 [INFO] [stdout] | [INFO] [stdout] 443 | return false [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 448 | return true [INFO] [stdout] | ^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `one_usize` [INFO] [stdout] --> src/lib.rs:370:17 [INFO] [stdout] | [INFO] [stdout] 370 | let one_usize = one.to_usize().unwrap(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_one_usize` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rng` [INFO] [stdout] --> src/lib.rs:509:13 [INFO] [stdout] | [INFO] [stdout] 509 | let mut rng = rand::thread_rng(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rng` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lib.rs:517:9 [INFO] [stdout] | [INFO] [stdout] 517 | 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:518:13 [INFO] [stdout] | [INFO] [stdout] 518 | 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:520:13 [INFO] [stdout] | [INFO] [stdout] 520 | 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:521:13 [INFO] [stdout] | [INFO] [stdout] 521 | 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:507:20 [INFO] [stdout] | [INFO] [stdout] 507 | 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:274:13 [INFO] [stdout] | [INFO] [stdout] 274 | 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:507:16 [INFO] [stdout] | [INFO] [stdout] 507 | 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:509:9 [INFO] [stdout] | [INFO] [stdout] 509 | 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:518:9 [INFO] [stdout] | [INFO] [stdout] 518 | 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:520:9 [INFO] [stdout] | [INFO] [stdout] 520 | 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:521:9 [INFO] [stdout] | [INFO] [stdout] 521 | 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:453:4 [INFO] [stdout] | [INFO] [stdout] 453 | 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:507:4 [INFO] [stdout] | [INFO] [stdout] 507 | fn pollard_rho(mut n: BigUint) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:507:16 [INFO] [stdout] | [INFO] [stdout] 507 | 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:509:9 [INFO] [stdout] | [INFO] [stdout] 509 | 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:518:9 [INFO] [stdout] | [INFO] [stdout] 518 | 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:520:9 [INFO] [stdout] | [INFO] [stdout] 520 | 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:521:9 [INFO] [stdout] | [INFO] [stdout] 521 | 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:453:4 [INFO] [stdout] | [INFO] [stdout] 453 | 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:507:4 [INFO] [stdout] | [INFO] [stdout] 507 | fn pollard_rho(mut n: BigUint) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BigInt`, `ToBigInt`, `ToBigUint` [INFO] [stdout] --> tests/issue2.rs:1:18 [INFO] [stdout] | [INFO] [stdout] 1 | 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] warning: unused variable: `x` [INFO] [stdout] --> tests/issue2.rs:11:17 [INFO] [stdout] | [INFO] [stdout] 11 | fn gets_biguint(x: &BigUint) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num_bigint::BigUint` [INFO] [stdout] --> tests/issue1_part2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use num_bigint::BigUint; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num::*` [INFO] [stdout] --> tests/issue1_part2.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use num::*; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num_bigint::BigUint` [INFO] [stdout] --> tests/issue1.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use num_bigint::BigUint; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num::*` [INFO] [stdout] --> tests/issue1.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use num::*; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.71s [INFO] running `Command { std: "docker" "inspect" "75f3b6857de8865c3da4803d6bd2b79640ef3d363058dca22d148388ac9bf889", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75f3b6857de8865c3da4803d6bd2b79640ef3d363058dca22d148388ac9bf889", kill_on_drop: false }` [INFO] [stdout] 75f3b6857de8865c3da4803d6bd2b79640ef3d363058dca22d148388ac9bf889