[INFO] fetching crate crate_lib_test 0.1.0...
[INFO] testing crate_lib_test-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate crate_lib_test 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate crate_lib_test 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate crate_lib_test 0.1.0
[INFO] tweaked toml for crates.io crate crate_lib_test 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate crate_lib_test 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate crate_lib_test 0.1.0 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" "+1.90.0" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41fe0171cc60e824186c1fb8141ad8d0c69e35c1d7c34a035aaccf23ca0c411e
[INFO] running `Command { std: "docker" "start" "-a" "41fe0171cc60e824186c1fb8141ad8d0c69e35c1d7c34a035aaccf23ca0c411e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41fe0171cc60e824186c1fb8141ad8d0c69e35c1d7c34a035aaccf23ca0c411e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41fe0171cc60e824186c1fb8141ad8d0c69e35c1d7c34a035aaccf23ca0c411e", kill_on_drop: false }`
[INFO] [stdout] 41fe0171cc60e824186c1fb8141ad8d0c69e35c1d7c34a035aaccf23ca0c411e
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78a48db6499747267b1dd08bf488a012fe5940bddf47618a791539c4724213ec
[INFO] running `Command { std: "docker" "start" "-a" "78a48db6499747267b1dd08bf488a012fe5940bddf47618a791539c4724213ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling crate_lib_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `factory`
[INFO] [stdout]   --> src/spores.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spore`
[INFO] [stdout]   --> src/spores.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/spores.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Sporangium` is more private than the item `produce_spore`
[INFO] [stdout]   --> src/spores.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `produce_spore` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Sporangium` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/spores.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Sporangium{}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Gene` is more private than the item `genes`
[INFO] [stdout]   --> src/spores.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `genes` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Gene` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/spores.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Gene{}
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Gene` is never constructed
[INFO] [stdout]   --> src/spores.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Gene{}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `genes` is never used
[INFO] [stdout]   --> src/spores.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recombine` is never used
[INFO] [stdout]   --> src/spores.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "78a48db6499747267b1dd08bf488a012fe5940bddf47618a791539c4724213ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a48db6499747267b1dd08bf488a012fe5940bddf47618a791539c4724213ec", kill_on_drop: false }`
[INFO] [stdout] 78a48db6499747267b1dd08bf488a012fe5940bddf47618a791539c4724213ec
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6630eaca70c3830996740cd28a5ebbe9eb234981b7cf3d6a3c3de38370a3e26a
[INFO] running `Command { std: "docker" "start" "-a" "6630eaca70c3830996740cd28a5ebbe9eb234981b7cf3d6a3c3de38370a3e26a", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `factory`
[INFO] [stdout]   --> src/spores.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spore`
[INFO] [stdout]   --> src/spores.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/spores.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Sporangium` is more private than the item `produce_spore`
[INFO] [stdout]   --> src/spores.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `produce_spore` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Sporangium` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/spores.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Sporangium{}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Gene` is more private than the item `genes`
[INFO] [stdout]   --> src/spores.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `genes` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Gene` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/spores.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Gene{}
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Gene` is never constructed
[INFO] [stdout]   --> src/spores.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Gene{}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `genes` is never used
[INFO] [stdout]   --> src/spores.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recombine` is never used
[INFO] [stdout]   --> src/spores.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crate_lib_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `factory`
[INFO] [stdout]   --> src/spores.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spore`
[INFO] [stdout]   --> src/spores.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/spores.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Sporangium` is more private than the item `produce_spore`
[INFO] [stdout]   --> src/spores.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `produce_spore` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Sporangium` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/spores.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Sporangium{}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Gene` is more private than the item `genes`
[INFO] [stdout]   --> src/spores.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `genes` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Gene` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/spores.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Gene{}
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Gene` is never constructed
[INFO] [stdout]   --> src/spores.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Gene{}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `genes` is never used
[INFO] [stdout]   --> src/spores.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recombine` is never used
[INFO] [stdout]   --> src/spores.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "6630eaca70c3830996740cd28a5ebbe9eb234981b7cf3d6a3c3de38370a3e26a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6630eaca70c3830996740cd28a5ebbe9eb234981b7cf3d6a3c3de38370a3e26a", kill_on_drop: false }`
[INFO] [stdout] 6630eaca70c3830996740cd28a5ebbe9eb234981b7cf3d6a3c3de38370a3e26a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b0a742d9d60e4f61473528edf063edfa89c5d482b615a8e5f378feb701c696f
[INFO] running `Command { std: "docker" "start" "-a" "6b0a742d9d60e4f61473528edf063edfa89c5d482b615a8e5f378feb701c696f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `factory`
[INFO] [stderr]   --> src/spores.rs:15:22
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `spore`
[INFO] [stderr]   --> src/spores.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]   --> src/spores.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stderr]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Sporangium` is more private than the item `produce_spore`
[INFO] [stderr]   --> src/spores.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn produce_spore(factory: &mut Sporangium) -> Spore {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `produce_spore` is reachable at visibility `pub`
[INFO] [stderr]    |
[INFO] [stderr] note: but type `Sporangium` is only usable at visibility `pub(self)`
[INFO] [stderr]   --> src/spores.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct Sporangium{}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Gene` is more private than the item `genes`
[INFO] [stderr]   --> src/spores.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `genes` is reachable at visibility `pub(crate)`
[INFO] [stderr]    |
[INFO] [stderr] note: but type `Gene` is only usable at visibility `pub(self)`
[INFO] [stderr]   --> src/spores.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct Gene{}
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Gene` is never constructed
[INFO] [stderr]   --> src/spores.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct Gene{}
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `genes` is never used
[INFO] [stderr]   --> src/spores.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `recombine` is never used
[INFO] [stderr]   --> src/spores.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn recombine<T>(parent: &mut Cell<T>) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `crate_lib_test` (lib) generated 8 warnings
[INFO] [stderr] warning: `crate_lib_test` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/crate_lib_test-49efc788bcd00b0d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test fern::tests::test_grow ... ok
[INFO] [stdout] test fern::tests::explicit_radix ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test fern::tests::test_divide_by_zero_error - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- fern::tests::explicit_radix stdout ----
[INFO] [stdout] Error: ParseIntError { kind: InvalidDigit }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     fern::tests::explicit_radix
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b0a742d9d60e4f61473528edf063edfa89c5d482b615a8e5f378feb701c696f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b0a742d9d60e4f61473528edf063edfa89c5d482b615a8e5f378feb701c696f", kill_on_drop: false }`
[INFO] [stdout] 6b0a742d9d60e4f61473528edf063edfa89c5d482b615a8e5f378feb701c696f