[INFO] cloning repository https://github.com/hgentry/euler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hgentry/euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgentry%2Feuler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgentry%2Feuler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f23f520d8658f312214641f5f5b601460e946eb4 [INFO] checking hgentry/euler against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgentry%2Feuler" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hgentry/euler on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hgentry/euler [INFO] finished tweaking git repo https://github.com/hgentry/euler [INFO] tweaked toml for git repo https://github.com/hgentry/euler written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/hgentry/euler already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] Downloading crates ... [INFO] [stderr] Downloaded num-bigint v0.1.35 [INFO] [stderr] Downloaded colored v1.6.0 [INFO] [stderr] Downloaded time v0.1.36 [INFO] [stderr] Downloaded libc v0.2.20 [INFO] [stderr] Downloaded redox_syscall v0.1.16 [INFO] [stderr] Downloaded rustc-serialize v0.3.22 [INFO] [stderr] Downloaded ord_subset v3.1.0 [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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 46166d0078660d10295d4bd0dd9ccc6db3c0b575e668c97a3da6d2ba7f295dfa [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "46166d0078660d10295d4bd0dd9ccc6db3c0b575e668c97a3da6d2ba7f295dfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46166d0078660d10295d4bd0dd9ccc6db3c0b575e668c97a3da6d2ba7f295dfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46166d0078660d10295d4bd0dd9ccc6db3c0b575e668c97a3da6d2ba7f295dfa", kill_on_drop: false }` [INFO] [stdout] 46166d0078660d10295d4bd0dd9ccc6db3c0b575e668c97a3da6d2ba7f295dfa [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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 881d5c3308070bf6ab9dacf884b248d84c696e25eddd94aed75e119004743bf4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "881d5c3308070bf6ab9dacf884b248d84c696e25eddd94aed75e119004743bf4", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.20 [INFO] [stderr] Checking num-traits v0.1.36 [INFO] [stderr] Checking ord_subset v3.1.0 [INFO] [stderr] Checking colored v1.6.0 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking time v0.1.36 [INFO] [stderr] Checking num-integer v0.1.32 [INFO] [stderr] Checking num-bigint v0.1.35 [INFO] [stderr] Checking euler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problems/p13.rs:140:40 [INFO] [stdout] | [INFO] [stdout] 140 | return result.parse::().unwrap();; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/problems/p37.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | if(left_truncatable(p)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::primes` [INFO] [stdout] --> src/problems/p40.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::primes; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::primes` [INFO] [stdout] --> src/problems/p42.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::primes; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::vec` [INFO] [stdout] --> src/problems/p43.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::vec; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::BTreeMap` [INFO] [stdout] --> src/problems/p615.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/problems/p615.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/problems/p615.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problems/p615.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | else {; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problems/p13.rs:140:40 [INFO] [stdout] | [INFO] [stdout] 140 | return result.parse::().unwrap();; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/problems/p37.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | if(left_truncatable(p)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::primes` [INFO] [stdout] --> src/problems/p40.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::primes; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::primes` [INFO] [stdout] --> src/problems/p42.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::primes; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::vec` [INFO] [stdout] --> src/problems/p43.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::vec; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::BTreeMap` [INFO] [stdout] --> src/problems/p615.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/problems/p615.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/problems/p615.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problems/p615.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | else {; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/problems/p43.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/problems/p32.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut parse = vec!(i, j, n); [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/problems/p42.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | let mut list : Vec = strings::process_list(s); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/problems/p43.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/problems/p43.rs:10:7 [INFO] [stdout] | [INFO] [stdout] 10 | let mut sv = to_vec(seventeen); [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/utils/math.rs:97:25 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn next_permutation(mut input: &Vec) -> Vec { [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/utils/math.rs:161:25 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn prev_permutation(mut input: &Vec) -> Vec { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `right_truncatable` [INFO] [stdout] --> src/problems/p37.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn right_truncatable(p: i64) -> 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: `next_permutation` [INFO] [stdout] --> src/utils/math.rs:97:8 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn next_permutation(mut input: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `list_primes` [INFO] [stdout] --> src/utils/primes.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn list_primes(max: i64) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `char_as_val` [INFO] [stdout] --> src/utils/strings.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn char_as_val(c: char) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `subvec` [INFO] [stdout] --> src/utils/vec.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn subvec(v: &Vec, a: usize, b: usize) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/problems/p32.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut parse = vec!(i, j, n); [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/problems/p42.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | let mut list : Vec = strings::process_list(s); [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/problems/p43.rs:10:7 [INFO] [stdout] | [INFO] [stdout] 10 | let mut sv = to_vec(seventeen); [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/utils/math.rs:97:25 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn next_permutation(mut input: &Vec) -> Vec { [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/utils/math.rs:161:25 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn prev_permutation(mut input: &Vec) -> Vec { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `right_truncatable` [INFO] [stdout] --> src/problems/p37.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn right_truncatable(p: i64) -> 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: `next_permutation` [INFO] [stdout] --> src/utils/math.rs:97:8 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn next_permutation(mut input: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `list_primes` [INFO] [stdout] --> src/utils/primes.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn list_primes(max: i64) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `char_as_val` [INFO] [stdout] --> src/utils/strings.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn char_as_val(c: char) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `subvec` [INFO] [stdout] --> src/utils/vec.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn subvec(v: &Vec, a: usize, b: usize) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.59s [INFO] running `Command { std: "docker" "inspect" "881d5c3308070bf6ab9dacf884b248d84c696e25eddd94aed75e119004743bf4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "881d5c3308070bf6ab9dacf884b248d84c696e25eddd94aed75e119004743bf4", kill_on_drop: false }` [INFO] [stdout] 881d5c3308070bf6ab9dacf884b248d84c696e25eddd94aed75e119004743bf4