[INFO] updating cached repository https://github.com/sogapalag/Problems_Rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c22bcbd6f76a287581cc261ab73b53ce01fc3aca
[INFO] checking sogapalag/Problems_Rust against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsogapalag%2FProblems_Rust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sogapalag/Problems_Rust on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sogapalag/Problems_Rust
[INFO] finished tweaking git repo https://github.com/sogapalag/Problems_Rust
[INFO] tweaked toml for git repo https://github.com/sogapalag/Problems_Rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sogapalag/Problems_Rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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] 1643bb78eb4e46bac56c5c9f46b4952f5c59c5b037240c281174d2bc9ef31ebe
[INFO] running `"docker" "start" "-a" "1643bb78eb4e46bac56c5c9f46b4952f5c59c5b037240c281174d2bc9ef31ebe"`
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking Problems_Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Primes`
[INFO] [stderr]  --> src/bin/pe_012.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 | use primal::{Primes, Sieve};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]   --> src/bin/ks_2018b2.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 | use std::cmp;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stderr]   --> src/bin/ks_2018b2.rs:46:24
[INFO] [stderr]    |
[INFO] [stderr] 46 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]    |                        ^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]   --> src/bin/ks_2018b2.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::time::{Duration, Instant};
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]   --> src/bin/pe_034.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let L = 3_000_000;
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]   --> src/bin/ks_2018a3.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 | use std::cmp;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/bin/ks_2018a3.rs:129:14
[INFO] [stderr]     |
[INFO] [stderr] 129 |     for t in (1..T + 1) {
[INFO] [stderr]     |              ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/ks_2018b2.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut v: Vec<_>;
[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: unused variable: `L`
[INFO] [stderr]   --> src/bin/ks_2018a3.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let L = read!();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_L`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/ks_2018b2.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut abc: Vec<_>;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ks_2018b2.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let T = read!(usize);
[INFO] [stderr]     |         ^ help: convert the identifier to snake case: `t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Problems_Rust` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `problems_rust`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/ks_2018a3.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut v: Vec<_>;
[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/bin/ks_2018a3.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut ssnabcd: Vec<_>;
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sundays_in_Jans`
[INFO] [stderr]  --> src/bin/pe_019.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sundays_in_Jans(start_yr: i32, end_yr: i32) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `sundays_in_Jans` should have a snake case name
[INFO] [stderr]  --> src/bin/pe_019.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sundays_in_Jans(start_yr: i32, end_yr: i32) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `sundays_in_jans`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]   --> src/bin/ks_2018a3.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let L = read!();
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `LIMIT` should have a snake case name
[INFO] [stderr]   --> src/bin/pe_014.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn find_largest(LIMIT: usize) -> (usize, usize){
[INFO] [stderr]    |                 ^^^^^ help: convert the identifier to snake case: `limit`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `SE` should have a snake case name
[INFO] [stderr]   --> src/bin/ks_2018a3.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let SE = [w.as_bytes()[0], w.as_bytes()[wlen - 1]];
[INFO] [stderr]    |             ^^ help: convert the identifier to snake case: `se`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `SE` should have a snake case name
[INFO] [stderr]    --> src/bin/ks_2018a3.rs:111:17
[INFO] [stderr]     |
[INFO] [stderr] 111 |             let SE = [longs[w_s], longs[w_e]];
[INFO] [stderr]     |                 ^^ help: convert the identifier to snake case: `se`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ks_2018a3.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |     let T = read!(usize);
[INFO] [stderr]     |         ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Primes`
[INFO] [stderr]  --> src/bin/pe_012.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 | use primal::{Primes, Sieve};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `pe_026`
[INFO] [stderr]  --> src/bin/pe_026.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | // O(n^2)
[INFO] [stderr]   |           ^ consider adding a `main` function to `src/bin/pe_026.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `Problems_Rust`.
[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] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/bin/pe_036.rs:7:17
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n` should have an upper case name
[INFO] [stderr]   --> src/bin/pe_260.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 |     const n: usize = 1000;
[INFO] [stderr]    |           ^ help: convert the identifier to upper case: `N`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `naive`
[INFO] [stderr]   --> src/bin/pe_256.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn naive() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `target`
[INFO] [stderr]   --> src/bin/pe_256.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     const target: usize = 200;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]   --> src/bin/pe_256.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut T = vec![0; S];
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `target` should have an upper case name
[INFO] [stderr]   --> src/bin/pe_256.rs:60:11
[INFO] [stderr]    |
[INFO] [stderr] 60 |     const target: usize = 200;
[INFO] [stderr]    |           ^^^^^^ help: convert the identifier to upper case: `TARGET`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]   --> src/bin/pe_256.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut T = vec![0; 5 + N >> 1];
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `SQN` should have a snake case name
[INFO] [stderr]   --> src/bin/pe_256.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let SQN = (N as f64).sqrt() as usize;
[INFO] [stderr]    |         ^^^ help: convert the identifier to snake case: `sqn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]  --> src/bin/pe_024.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let h = (1..10).fold(1, |acc, i| {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_h`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Primes`
[INFO] [stderr]  --> src/bin/pe_023.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use primal::{Primes, Sieve};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lim`
[INFO] [stderr]   --> src/bin/pe_025.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let lim = log2_10 * 999f64;
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_lim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]   --> src/bin/pe_024.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let mut T = 1;
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1643bb78eb4e46bac56c5c9f46b4952f5c59c5b037240c281174d2bc9ef31ebe"`
[INFO] running `"docker" "rm" "-f" "1643bb78eb4e46bac56c5c9f46b4952f5c59c5b037240c281174d2bc9ef31ebe"`
[INFO] [stdout] 1643bb78eb4e46bac56c5c9f46b4952f5c59c5b037240c281174d2bc9ef31ebe