[INFO] cloning repository https://github.com/FeanorTheElf/FeanorLA
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FeanorTheElf/FeanorLA" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeanorTheElf%2FFeanorLA", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeanorTheElf%2FFeanorLA'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62cabacf2a087f50cc129f1e32130e4a806f5ea8
[INFO] testing FeanorTheElf/FeanorLA against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeanorTheElf%2FFeanorLA" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FeanorTheElf/FeanorLA on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FeanorTheElf/FeanorLA
[INFO] finished tweaking git repo https://github.com/FeanorTheElf/FeanorLA
[INFO] tweaked toml for git repo https://github.com/FeanorTheElf/FeanorLA written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FeanorTheElf/FeanorLA already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a2bb581d68c93193f3b0773138bc9c294b64b7171834549a0077069c4f61430
[INFO] running `Command { std: "docker" "start" "-a" "5a2bb581d68c93193f3b0773138bc9c294b64b7171834549a0077069c4f61430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a2bb581d68c93193f3b0773138bc9c294b64b7171834549a0077069c4f61430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2bb581d68c93193f3b0773138bc9c294b64b7171834549a0077069c4f61430", kill_on_drop: false }`
[INFO] [stdout] 5a2bb581d68c93193f3b0773138bc9c294b64b7171834549a0077069c4f61430
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d04fdc55c58e683fa807b368650f1a2164e9ffa5ddec84d97b929b7b4ad62b1e
[INFO] running `Command { std: "docker" "start" "-a" "d04fdc55c58e683fa807b368650f1a2164e9ffa5ddec84d97b929b7b4ad62b1e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling feanor_la v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/alg_env.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn from(x: i8) -> Self {
[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: function is never used: `read_words_file`
[INFO] [stdout]   --> src/combinatorics/subst_cipher.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn read_words_file() -> Result<String, std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn evaluate<S>(text: &[SymbolMask<S>], words: &PrefixDatabase<S>) -> u64 
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_english_word_db`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn get_english_word_db() -> PrefixDatabase<char> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decrypt`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn decrypt(ciphertext: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `Command { std: "docker" "inspect" "d04fdc55c58e683fa807b368650f1a2164e9ffa5ddec84d97b929b7b4ad62b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04fdc55c58e683fa807b368650f1a2164e9ffa5ddec84d97b929b7b4ad62b1e", kill_on_drop: false }`
[INFO] [stdout] d04fdc55c58e683fa807b368650f1a2164e9ffa5ddec84d97b929b7b4ad62b1e
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dec0fcc13c0bb65813619c99dcb66f55e54715b092909479d47dded931f14e48
[INFO] running `Command { std: "docker" "start" "-a" "dec0fcc13c0bb65813619c99dcb66f55e54715b092909479d47dded931f14e48", kill_on_drop: false }`
[INFO] [stderr]    Compiling feanor_la v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/alg_env.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn from(x: i8) -> Self {
[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: function is never used: `read_words_file`
[INFO] [stdout]   --> src/combinatorics/subst_cipher.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn read_words_file() -> Result<String, std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn evaluate<S>(text: &[SymbolMask<S>], words: &PrefixDatabase<S>) -> u64 
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_english_word_db`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn get_english_word_db() -> PrefixDatabase<char> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decrypt`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn decrypt(ciphertext: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/alg_env.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn from(x: i8) -> Self {
[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: function is never used: `read_words_file`
[INFO] [stdout]   --> src/combinatorics/subst_cipher.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn read_words_file() -> Result<String, std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_english_word_db`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn get_english_word_db() -> PrefixDatabase<char> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decrypt`
[INFO] [stdout]    --> src/combinatorics/subst_cipher.rs:194:4
[INFO] [stdout]     |
[INFO] [stdout] 194 | fn decrypt(ciphertext: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.70s
[INFO] running `Command { std: "docker" "inspect" "dec0fcc13c0bb65813619c99dcb66f55e54715b092909479d47dded931f14e48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec0fcc13c0bb65813619c99dcb66f55e54715b092909479d47dded931f14e48", kill_on_drop: false }`
[INFO] [stdout] dec0fcc13c0bb65813619c99dcb66f55e54715b092909479d47dded931f14e48
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9fed0c90d2e534dfb9fa21bd3341946a3a320e5be74bbe0e2e52a735fffc33c
[INFO] running `Command { std: "docker" "start" "-a" "c9fed0c90d2e534dfb9fa21bd3341946a3a320e5be74bbe0e2e52a735fffc33c", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(specialization)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/alg_env.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn from(x: i8) -> Self {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_words_file`
[INFO] [stderr]   --> src/combinatorics/subst_cipher.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn read_words_file() -> Result<String, std::io::Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evaluate`
[INFO] [stderr]    --> src/combinatorics/subst_cipher.rs:164:4
[INFO] [stderr]     |
[INFO] [stderr] 164 | fn evaluate<S>(text: &[SymbolMask<S>], words: &PrefixDatabase<S>) -> u64 
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_english_word_db`
[INFO] [stderr]    --> src/combinatorics/subst_cipher.rs:185:4
[INFO] [stderr]     |
[INFO] [stderr] 185 | fn get_english_word_db() -> PrefixDatabase<char> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decrypt`
[INFO] [stderr]    --> src/combinatorics/subst_cipher.rs:194:4
[INFO] [stderr]     |
[INFO] [stderr] 194 | fn decrypt(ciphertext: &str) -> String {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `feanor_la` (lib) generated 7 warnings
[INFO] [stderr] warning: `feanor_la` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/feanor_la-939d7aa8a184523e)
[INFO] [stdout] 
[INFO] [stdout] running 101 tests
[INFO] [stdout] test alg_env::test_ring_referencing_el_operations ... ok
[INFO] [stdout] test algebra::bigint::bench_div ... ok
[INFO] [stdout] test alg::test_pow ... ok
[INFO] [stdout] test algebra::bigint::bench_mul ... ok
[INFO] [stdout] test algebra::eea::test_signed_eea ... ok
[INFO] [stdout] test algebra::eea::test_gcd ... ok
[INFO] [stdout] test algebra::bigint::test_abs_addition ... ok
[INFO] [stdout] test algebra::diophantine::test_diophantine_three_dim ... ok
[INFO] [stdout] test algebra::bigint::test_abs_addition_with_carry ... ok
[INFO] [stdout] test algebra::bigint::test_abs_division_no_remainder ... ok
[INFO] [stdout] test algebra::bigint::test_abs_division_big ... ok
[INFO] [stdout] test algebra::diophantine::test_diophantine_unnecessary_conditions ... ok
[INFO] [stdout] test algebra::bigint::test_abs_subtraction_with_carry ... ok
[INFO] [stdout] test algebra::diophantine::test_partial_smith_4x2 ... ok
[INFO] [stdout] test algebra::bigint::test_abs_division_remainder ... ok
[INFO] [stdout] test algebra::eea::test_eea_sign ... ok
[INFO] [stdout] test algebra::bigint::from_to_float_approx ... ok
[INFO] [stdout] test algebra::factoring::fermat::test_fermat_factorization ... ok
[INFO] [stdout] test algebra::poly::test_binomial_formula ... ok
[INFO] [stdout] test algebra::poly::test_poly_arithmetic ... ok
[INFO] [stdout] test algebra::poly::test_assumption_option_ord ... ok
[INFO] [stdout] test algebra::poly::test_format ... ok
[INFO] [stdout] test algebra::poly::test_evaluate_at ... ok
[INFO] [stdout] test algebra::poly::test_format_multivar_poly_ring ... ok
[INFO] [stdout] test algebra::poly::test_elevate_var ... ok
[INFO] [stdout] test algebra::quotient::test_mul ... ok
[INFO] [stdout] test algebra::rat::benchmark_combined_add_mult_eq ... ok
[INFO] [stdout] test algebra::rat::test_calculate_nan_inf ... ok
[INFO] [stdout] test algebra::rat::test_cmp_nan_inf ... ok
[INFO] [stdout] test algebra::rat::test_mul_assign_overflow ... ok
[INFO] [stdout] test algebra::rat::test_ord ... ok
[INFO] [stdout] test algebra::rat::test_ord_nan_inf ... ok
[INFO] [stdout] test algebra::zn::test_zn_el_add ... ok
[INFO] [stdout] test algebra::poly::test_gradient ... ok
[INFO] [stdout] test algebra::poly::test_poly_div ... ok
[INFO] [stdout] test algebra::bigint::test_cmp_small ... ok
[INFO] [stdout] test algebra::bigint::test_abs_division_small ... ok
[INFO] [stdout] test algebra::bigint::test_eq ... ok
[INFO] [stdout] test algebra::bigint::test_abs_multiplication ... ok
[INFO] [stdout] test algebra::bigint::test_abs_subtraction ... ok
[INFO] [stdout] test algebra::bigint::test_find_zero_floor ... ok
[INFO] [stdout] test algebra::bigint::test_from_str_radix ... ok
[INFO] [stdout] test algebra::bigint::test_root_floor ... ok
[INFO] [stdout] test algebra::bigint::test_sub_assign ... ok
[INFO] [stdout] test algebra::diophantine::test_diophantine_no_rational_solutions ... ok
[INFO] [stdout] test algebra::diophantine::test_diophantine_no_solution_three_dim ... ok
[INFO] [stdout] test algebra::bigint::test_shift_right ... ok
[INFO] [stdout] test algebra::diophantine::test_diophantine ... ok
[INFO] [stdout] test algebra::bigint::test_print_power_2 ... ok
[INFO] [stdout] test algebra::diophantine::test_diophantine_no_solution ... ok
[INFO] [stdout] test algebra::bigint::test_assumptions_integer_division ... ok
[INFO] [stdout] test algebra::poly::test_eq ... ok
[INFO] [stdout] test combinatorics::bitset::test_operations ... ok
[INFO] [stdout] test algebra::poly::test_div_multivar_poly_ring ... ok
[INFO] [stdout] test algebra::zn::test_zn_el_sub ... ok
[INFO] [stdout] test la::algorithms::test_kernel_base ... ok
[INFO] [stdout] test combinatorics::iters::test_cartesian_product ... ok
[INFO] [stdout] test la::matrix_view::test_from_fn ... ok
[INFO] [stdout] test combinatorics::flow::test_ford_fulkerson ... ok
[INFO] [stdout] test numerics::newton::test_newton_multidim ... ok
[INFO] [stdout] test numerics::qr::test_qr ... ok
[INFO] [stdout] test algebra::zn::fn_test_div_impossible ... ok
[INFO] [stdout] test algebra::zn::test_is_prime ... ok
[INFO] [stdout] test algebra::zn::test_zn_el_div ... ok
[INFO] [stdout] test combinatorics::bitset::test_range_powerset ... ok
[INFO] [stdout] test combinatorics::bitset::test_smallest_elements ... ok
[INFO] [stdout] test combinatorics::subst_cipher::test_evaluate ... ok
[INFO] [stdout] test combinatorics::subst_cipher::test_prefix_database ... ok
[INFO] [stdout] test la::mat::test_mul ... ok
[INFO] [stdout] test la::mat::test_zero_sized_matrix ... ok
[INFO] [stdout] test la::matrix_view::test_mut_row_iter ... ok
[INFO] [stdout] test la::submatrix::test_row_iter_mut ... ok
[INFO] [stdout] test numerics::simplex::test_extract_solution ... ok
[INFO] [stdout] test algebra::rat::test_add_assign ... ok
[INFO] [stdout] test algebra::rat::test_add_assign_overflow ... ok
[INFO] [stdout] test combinatorics::bitset::test_from_range ... ok
[INFO] [stdout] test combinatorics::iters::test_bitset_combinations ... ok
[INFO] [stdout] test algebra::zn::test_zn_el_mul ... ok
[INFO] [stdout] test combinatorics::iters::test_converted_combinations ... ok
[INFO] [stdout] test la::mat::test_diagonal ... ok
[INFO] [stdout] test la::mat::test_row_iter ... ok
[INFO] [stdout] test combinatorics::iters::test_bitset_powerset ... ok
[INFO] [stdout] test combinatorics::bitset::test_subset ... ok
[INFO] [stdout] test la::algorithms::test_invert_matrix ... ok
[INFO] [stdout] test combinatorics::iters::test_subdivisions ... ok
[INFO] [stdout] test numerics::qr::test_qr_cols_ge_rows ... ok
[INFO] [stdout] test numerics::qr::test_qr_rows_ge_cols ... ok
[INFO] [stdout] test numerics::simplex::test_add_artificials ... ok
[INFO] [stdout] test numerics::simplex::test_impossible_system_solve ... ok
[INFO] [stdout] test numerics::simplex::test_is_solution ... ok
[INFO] [stdout] test numerics::simplex::test_simplex_no_artificials ... ok
[INFO] [stdout] test numerics::simplex::test_solve ... ok
[INFO] [stdout] test numerics::simplex::test_solve_zero_vec_solution ... ok
[INFO] [stdout] test la::mat::test_mul_matrix ... ok
[INFO] [stdout] test combinatorics::iters::test_multi_cartesian_product ... ok
[INFO] [stdout] test algebra::rat::test_real_overflow - should panic ... ok
[INFO] [stdout] test algebra::primes::test_is_prime ... ok
[INFO] [stdout] test algebra::primes::test_factor_perfect_power ... ok
[INFO] [stdout] test algebra::bigint::test_axioms ... ok
[INFO] [stdout] test algebra::primes::test_factor ... ok
[INFO] [stderr]    Doc-tests feanor_la
[INFO] [stdout] test algebra::factoring::sieve::test_quadratic_sieve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 101 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] [stderr] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(specialization)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c9fed0c90d2e534dfb9fa21bd3341946a3a320e5be74bbe0e2e52a735fffc33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9fed0c90d2e534dfb9fa21bd3341946a3a320e5be74bbe0e2e52a735fffc33c", kill_on_drop: false }`
[INFO] [stdout] c9fed0c90d2e534dfb9fa21bd3341946a3a320e5be74bbe0e2e52a735fffc33c