[INFO] cloning repository https://github.com/cdelmas/99-problems-lists-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cdelmas/99-problems-lists-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelmas%2F99-problems-lists-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelmas%2F99-problems-lists-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a950980f56eea2736b0c4178c9fd77bbd964ef8 [INFO] testing cdelmas/99-problems-lists-rs against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelmas%2F99-problems-lists-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/cdelmas/99-problems-lists-rs [INFO] finished tweaking git repo https://github.com/cdelmas/99-problems-lists-rs [INFO] tweaked toml for git repo https://github.com/cdelmas/99-problems-lists-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cdelmas/99-problems-lists-rs on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/cdelmas/99-problems-lists-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a7c4e5ccd838c9640cf0059c748416a6c6576b64e880de3c03689a60e88fbacf [INFO] running `Command { std: "docker" "start" "-a" "a7c4e5ccd838c9640cf0059c748416a6c6576b64e880de3c03689a60e88fbacf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a7c4e5ccd838c9640cf0059c748416a6c6576b64e880de3c03689a60e88fbacf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7c4e5ccd838c9640cf0059c748416a6c6576b64e880de3c03689a60e88fbacf", kill_on_drop: false }` [INFO] [stdout] a7c4e5ccd838c9640cf0059c748416a6c6576b64e880de3c03689a60e88fbacf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] cd510f87c2671c1ec540f7bd789865b43e076320c16c286c1783987d2f2b348e [INFO] running `Command { std: "docker" "start" "-a" "cd510f87c2671c1ec540f7bd789865b43e076320c16c286c1783987d2f2b348e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.104 [INFO] [stderr] Compiling ppv-lite86 v0.2.15 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling itertools v0.10.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling factorial v0.2.1 [INFO] [stderr] Compiling num v0.4.0 [INFO] [stderr] Compiling problems_99 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `is_prime` is never used [INFO] [stdout] --> src/arithmetic/mod.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn is_prime(n: u64) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `gcd` is never used [INFO] [stdout] --> src/arithmetic/mod.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn gcd(n: u32, m: u32) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `are_coprime` is never used [INFO] [stdout] --> src/arithmetic/mod.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn are_coprime(n: u32, m: u32) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `last` is never used [INFO] [stdout] --> src/lists/mod.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn last(l: &[A]) -> Option<&A> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `but_last` is never used [INFO] [stdout] --> src/lists/mod.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn but_last(l: &[A]) -> Option<&A> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `k_th` is never used [INFO] [stdout] --> src/lists/mod.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn k_th(l: &[A], index: usize) -> Option<&A> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `length` is never used [INFO] [stdout] --> src/lists/mod.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn length(l: &[A]) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `reverse` is never used [INFO] [stdout] --> src/lists/mod.rs:33:4 [INFO] [stdout] | [INFO] [stdout] 33 | fn reverse(l: &[A]) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_palindrome` is never used [INFO] [stdout] --> src/lists/mod.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn is_palindrome(l: &[A]) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `NestedList` is never used [INFO] [stdout] --> src/lists/mod.rs:44:6 [INFO] [stdout] | [INFO] [stdout] 44 | enum NestedList { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NestedList` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `flatten` is never used [INFO] [stdout] --> src/lists/mod.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn flatten(list: &NestedList) -> Vec<&A> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_consecutive_duplicates` is never used [INFO] [stdout] --> src/lists/mod.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn remove_consecutive_duplicates(list: &[A]) -> Vec<&A> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `pack_consecutive_duplicates` is never used [INFO] [stdout] --> src/lists/mod.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn pack_consecutive_duplicates(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `occurrences` is never used [INFO] [stdout] --> src/lists/mod.rs:76:4 [INFO] [stdout] | [INFO] [stdout] 76 | fn occurrences(list: &[A]) -> Vec<(usize, &A)> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Occurrence` is never used [INFO] [stdout] --> src/lists/mod.rs:84:6 [INFO] [stdout] | [INFO] [stdout] 84 | enum Occurrence<'a, A> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Occurrence` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `can_increment`, and `increment` are never used [INFO] [stdout] --> src/lists/mod.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 89 | / impl<'a, A> Occurrence<'a, A> [INFO] [stdout] 90 | | where [INFO] [stdout] 91 | | A: Eq, [INFO] [stdout] | |__________- associated items in this implementation [INFO] [stdout] 92 | { [INFO] [stdout] 93 | fn new(size: usize, elem: &'a A) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 101 | fn can_increment(self: &Occurrence<'a, A>, elem: &'a A) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | fn increment(occurrence: &'a Occurrence, elem: &'a A) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `encode` is never used [INFO] [stdout] --> src/lists/mod.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `decode` is never used [INFO] [stdout] --> src/lists/mod.rs:124:4 [INFO] [stdout] | [INFO] [stdout] 124 | fn decode<'a, A>(list: &'a [Occurrence]) -> Vec<&'a A> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `encode_no_intermediary` is never used [INFO] [stdout] --> src/lists/mod.rs:133:4 [INFO] [stdout] | [INFO] [stdout] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `duplicate` is never used [INFO] [stdout] --> src/lists/mod.rs:150:4 [INFO] [stdout] | [INFO] [stdout] 150 | fn duplicate(list: &[A]) -> Vec { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `replicate` is never used [INFO] [stdout] --> src/lists/mod.rs:154:4 [INFO] [stdout] | [INFO] [stdout] 154 | fn replicate(list: &[A], repl_num: u8) -> Vec { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `drop_every_nth` is never used [INFO] [stdout] --> src/lists/mod.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn drop_every_nth(list: &[A], each: usize) -> Vec<&A> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `split_n` is never used [INFO] [stdout] --> src/lists/mod.rs:173:4 [INFO] [stdout] | [INFO] [stdout] 173 | fn split_n(list: &[A], at: usize) -> (&[A], &[A]) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice` is never used [INFO] [stdout] --> src/lists/mod.rs:181:4 [INFO] [stdout] | [INFO] [stdout] 181 | fn slice(list: &[A], from: usize, to: usize) -> Option<&[A]> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rotate` is never used [INFO] [stdout] --> src/lists/mod.rs:189:4 [INFO] [stdout] | [INFO] [stdout] 189 | fn rotate(list: &[A], n: isize) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_at` is never used [INFO] [stdout] --> src/lists/mod.rs:200:4 [INFO] [stdout] | [INFO] [stdout] 200 | fn remove_at(list: &[A], n: usize) -> Option<(A, Vec)> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `insert_at` is never used [INFO] [stdout] --> src/lists/mod.rs:210:4 [INFO] [stdout] | [INFO] [stdout] 210 | fn insert_at(list: &[A], a: A, at: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `range` is never used [INFO] [stdout] --> src/lists/mod.rs:216:4 [INFO] [stdout] | [INFO] [stdout] 216 | fn range(from: u32, to: u32) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `random_select` is never used [INFO] [stdout] --> src/lists/mod.rs:220:4 [INFO] [stdout] | [INFO] [stdout] 220 | fn random_select<'a, A, R>(list: &'a [A], n: usize, rng: &mut R) -> Vec<&'a A> [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `lottery_draw` is never used [INFO] [stdout] --> src/lists/mod.rs:227:4 [INFO] [stdout] | [INFO] [stdout] 227 | fn lottery_draw(upper_bound: u32, n: u32, rng: &mut R) -> Vec [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `random_permutation` is never used [INFO] [stdout] --> src/lists/mod.rs:238:4 [INFO] [stdout] | [INFO] [stdout] 238 | fn random_permutation<'a, A, R>(list: &'a [A], rng: &mut R) -> Vec<&'a A> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `combinations` is never used [INFO] [stdout] --> src/lists/mod.rs:247:4 [INFO] [stdout] | [INFO] [stdout] 247 | fn combinations(list: &[A], n: usize) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `group` is never used [INFO] [stdout] --> src/lists/mod.rs:251:4 [INFO] [stdout] | [INFO] [stdout] 251 | fn group(sizes: &[u8], list: &[A]) -> Option>>> [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sort_by_length` is never used [INFO] [stdout] --> src/lists/mod.rs:298:4 [INFO] [stdout] | [INFO] [stdout] 298 | fn sort_by_length(list: &[Vec]) -> Vec> [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lists/mod.rs:117:24 [INFO] [stdout] | [INFO] [stdout] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lists/mod.rs:133:40 [INFO] [stdout] | [INFO] [stdout] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.66s [INFO] running `Command { std: "docker" "inspect" "cd510f87c2671c1ec540f7bd789865b43e076320c16c286c1783987d2f2b348e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd510f87c2671c1ec540f7bd789865b43e076320c16c286c1783987d2f2b348e", kill_on_drop: false }` [INFO] [stdout] cd510f87c2671c1ec540f7bd789865b43e076320c16c286c1783987d2f2b348e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 6fa010b7d1f75dffb97df39335b1f0db97c6b3425b006361c1ab80bf1f4efe3a [INFO] running `Command { std: "docker" "start" "-a" "6fa010b7d1f75dffb97df39335b1f0db97c6b3425b006361c1ab80bf1f4efe3a", kill_on_drop: false }` [INFO] [stderr] Compiling remove_dir_all v0.5.3 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling rand_xorshift v0.3.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling quick-error v2.0.1 [INFO] [stderr] Compiling tempfile v3.2.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling rusty-fork v0.3.0 [INFO] [stderr] Compiling proptest v1.0.0 [INFO] [stderr] Compiling problems_99 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::BTreeMap` [INFO] [stdout] --> src/lists/mod.rs:840:13 [INFO] [stdout] | [INFO] [stdout] 840 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/lists/mod.rs:841:13 [INFO] [stdout] | [INFO] [stdout] 841 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `length` is never used [INFO] [stdout] --> src/lists/mod.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn length(l: &[A]) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `can_increment` and `increment` are never used [INFO] [stdout] --> src/lists/mod.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 89 | / impl<'a, A> Occurrence<'a, A> [INFO] [stdout] 90 | | where [INFO] [stdout] 91 | | A: Eq, [INFO] [stdout] | |__________- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 101 | fn can_increment(self: &Occurrence<'a, A>, elem: &'a A) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | fn increment(occurrence: &'a Occurrence, elem: &'a A) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lists/mod.rs:117:24 [INFO] [stdout] | [INFO] [stdout] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lists/mod.rs:133:40 [INFO] [stdout] | [INFO] [stdout] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stdout] | ^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 17.13s [INFO] running `Command { std: "docker" "inspect" "6fa010b7d1f75dffb97df39335b1f0db97c6b3425b006361c1ab80bf1f4efe3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fa010b7d1f75dffb97df39335b1f0db97c6b3425b006361c1ab80bf1f4efe3a", kill_on_drop: false }` [INFO] [stdout] 6fa010b7d1f75dffb97df39335b1f0db97c6b3425b006361c1ab80bf1f4efe3a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] ce799f26a68ebd6f1bbdf4ff104cdbf03f75e7ddc18b24759ae992d5f1acd8f3 [INFO] running `Command { std: "docker" "start" "-a" "ce799f26a68ebd6f1bbdf4ff104cdbf03f75e7ddc18b24759ae992d5f1acd8f3", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::collections::BTreeMap` [INFO] [stderr] --> src/lists/mod.rs:840:13 [INFO] [stderr] | [INFO] [stderr] 840 | use std::collections::BTreeMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::FromIterator` [INFO] [stderr] --> src/lists/mod.rs:841:13 [INFO] [stderr] | [INFO] [stderr] 841 | use std::iter::FromIterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `length` is never used [INFO] [stderr] --> src/lists/mod.rs:29:4 [INFO] [stderr] | [INFO] [stderr] 29 | fn length(l: &[A]) -> usize { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated items `can_increment` and `increment` are never used [INFO] [stderr] --> src/lists/mod.rs:101:8 [INFO] [stderr] | [INFO] [stderr] 89 | / impl<'a, A> Occurrence<'a, A> [INFO] [stderr] 90 | | where [INFO] [stderr] 91 | | A: Eq, [INFO] [stderr] | |__________- associated items in this implementation [INFO] [stderr] ... [INFO] [stderr] 101 | fn can_increment(self: &Occurrence<'a, A>, elem: &'a A) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 108 | fn increment(occurrence: &'a Occurrence, elem: &'a A) -> Option> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/lists/mod.rs:117:24 [INFO] [stderr] | [INFO] [stderr] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stderr] | ^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 117 | fn encode(list: &[A]) -> Vec> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/lists/mod.rs:133:40 [INFO] [stderr] | [INFO] [stderr] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stderr] | ^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 133 | fn encode_no_intermediary(list: &[A]) -> Vec> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `problems_99` (bin "problems_99" test) generated 6 warnings (run `cargo fix --bin "problems_99" --tests` to apply 4 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/problems_99-18c4a81fff1f95b3) [INFO] [stdout] [INFO] [stdout] running 55 tests [INFO] [stdout] test arithmetic::tests::two_is_prime ... ok [INFO] [stdout] test arithmetic::tests::even_numbers_are_not_coprimes ... ok [INFO] [stdout] test arithmetic::tests::well_known_primes_are_primes ... ok [INFO] [stdout] test arithmetic::tests::gcd_is_same_as_oracle ... ok [INFO] [stdout] test arithmetic::tests::even_numbers_are_not_prime_except_2 ... ok [INFO] [stdout] test lists::test::but_last_is_reverse_second ... ok [INFO] [stdout] test lists::test::decode_tests ... ok [INFO] [stdout] test lists::test::combinations_have_elements_in_original ... ok [INFO] [stdout] test lists::test::combinations_has_c_length_n_size ... ok [INFO] [stdout] test lists::test::drop_every_nth_test ... ok [INFO] [stdout] test lists::test::concatenate_the_reversed_is_a_palindrom ... ok [INFO] [stdout] test arithmetic::tests::gcd_does_not_compute_for_m_eq_0 - should panic ... ok [INFO] [stdout] test arithmetic::tests::gcd_does_not_compute_for_n_eq_0 - should panic ... ok [INFO] [stdout] test lists::test::encode_no_intermediary_tests ... ok [INFO] [stdout] test lists::test::encode_tests ... ok [INFO] [stdout] test arithmetic::tests::different_primes_are_coprimes ... ok [INFO] [stdout] test lists::test::all_chosen_are_in_the_original_list ... ok [INFO] [stdout] test lists::test::flatten_an_elem_is_a_vector_with_the_elem ... ok [INFO] [stdout] test lists::test::flattened_contains_all_elems ... ok [INFO] [stdout] test lists::test::group_by ... ok [INFO] [stdout] test lists::test::drop_every_nth_elem_of_the_list_removes_up_to_len_minus_len_div_n_elements ... ok [INFO] [stdout] test lists::test::first_part_has_size_at_or_is_full_original ... ok [INFO] [stdout] test lists::test::encode_no_intermediary_should_have_same_results_as_encode ... ok [INFO] [stdout] test lists::test::is_a_palindrom ... ok [INFO] [stdout] test lists::test::duplicates_has_two_times_the_size_of_the_original ... ok [INFO] [stdout] test lists::test::encoding_then_decoding_gives_the_original_array ... ok [INFO] [stdout] test lists::test::each_element_in_the_original_is_in_the_duplicates ... ok [INFO] [stdout] test lists::test::each_element_in_the_original_is_in_the_replicates ... ok [INFO] [stdout] test lists::test::last_is_reverse_head ... ok [INFO] [stdout] test lists::test::kth_with_index_in_range_1_len_is_some ... ok [INFO] [stdout] test lists::test::occurrences_tests ... ok [INFO] [stdout] test lists::test::kth_with_index_bigger_than_size_is_none ... ok [INFO] [stdout] test lists::test::insert_at_increase_length_by_1_and_all_elems_are_in_list ... ok [INFO] [stdout] test lists::test::range_has_to_minus_from_elements_all_between_from_and_to ... ok [INFO] [stdout] test lists::test::packing_leads_to_the_same_length_as_removing_dups ... ok [INFO] [stdout] test lists::test::groups_has_multinomial_nb_of_solutions ... ok [INFO] [stdout] test lists::test::permutation_has_same_size_as_original ... ok [INFO] [stdout] test lists::test::removing_duplicates_leaves_a_smaller_or_equal_length_list ... ok [INFO] [stdout] test lists::test::remove_at_is_some_list_with_one_less_elem_if_index_in_bounds_or_is_none ... ok [INFO] [stdout] test lists::test::replicates_has_n_times_the_size_of_the_original ... ok [INFO] [stdout] test lists::test::permutation_has_same_elements_as_original ... ok [INFO] [stdout] test lists::test::slice_from_bigger_than_to ... ok [INFO] [stdout] test lists::test::slice_out_of_bounds ... ok [INFO] [stdout] test lists::test::slice_test ... ok [INFO] [stdout] test lists::test::reverse_the_reversed_list_gives_the_original ... ok [INFO] [stdout] test lists::test::joining_each_solution_gives_back_the_original ... ok [INFO] [stdout] test lists::test::rotate_keeps_the_length_invariant ... ok [INFO] [stdout] test lists::test::split_then_join_leads_to_the_original ... ok [INFO] [stdout] test lists::test::rotate_keeps_the_same_elements ... ok [INFO] [stdout] test lists::test::rotate_then_rotate_with_the_opposite_leaves_the_original ... ok [INFO] [stdout] test lists::test::test_of_chosen_is_min_original_length_n ... ok [INFO] [stdout] test lists::test::vector_size_is_nodes_size ... ok [INFO] [stdout] test lists::test::lottery_draw_result_has_size_equal_to_min_upper_bound_and_n ... ok [INFO] [stdout] test lists::test::lottery_draw_every_number_is_between_1_and_upper_bound ... ok [INFO] [stdout] test lists::test::sort_by_length_has_same_elements_than_original ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.22s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ce799f26a68ebd6f1bbdf4ff104cdbf03f75e7ddc18b24759ae992d5f1acd8f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce799f26a68ebd6f1bbdf4ff104cdbf03f75e7ddc18b24759ae992d5f1acd8f3", kill_on_drop: false }` [INFO] [stdout] ce799f26a68ebd6f1bbdf4ff104cdbf03f75e7ddc18b24759ae992d5f1acd8f3