[INFO] fetching crate developing_today 0.1.0...
[INFO] testing developing_today-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate developing_today 0.1.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate developing_today 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate developing_today 0.1.0
[INFO] finished tweaking crates.io crate developing_today 0.1.0
[INFO] tweaked toml for crates.io crate developing_today 0.1.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate developing_today 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 517e387d242eb10a590c778c6e64f5a53560a83299535dc7976577bd06ad5997
[INFO] running `Command { std: "docker" "start" "-a" "517e387d242eb10a590c778c6e64f5a53560a83299535dc7976577bd06ad5997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "517e387d242eb10a590c778c6e64f5a53560a83299535dc7976577bd06ad5997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "517e387d242eb10a590c778c6e64f5a53560a83299535dc7976577bd06ad5997", kill_on_drop: false }`
[INFO] [stdout] 517e387d242eb10a590c778c6e64f5a53560a83299535dc7976577bd06ad5997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8782d1c22a5e0fb6c3e9844d3902602792963a2ce3ba09c91315e1461ab90d4
[INFO] running `Command { std: "docker" "start" "-a" "b8782d1c22a5e0fb6c3e9844d3902602792963a2ce3ba09c91315e1461ab90d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling developing_today v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut hasher = &mut DefaultHasher::new();
[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: field is never read: `hash_register`
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     hash_register: HashSetMap<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hasher`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     hasher: Option<Rc<dyn Hasher>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn insert(&mut self, hasher: &'a mut dyn Hasher, input: T) -> Option<Rc<T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_capacity`
[INFO] [stdout]   --> src/lib.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_with_capacity(capacity: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_hasher`
[INFO] [stdout]   --> src/lib.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_with_hasher(hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_capacity_and_hasher`
[INFO] [stdout]   --> src/lib.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new_with_capacity_and_hasher(capacity: usize, hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build`
[INFO] [stdout]   --> src/lib.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn build(self) -> HashMap<Rc<u64>, Rc<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_hasher`
[INFO] [stdout]   --> src/lib.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn with_hasher(mut self, hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hasher`
[INFO] [stdout]   --> src/lib.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn hasher(&mut self, hasher: Rc<dyn Hasher>) -> &mut Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/lib.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "b8782d1c22a5e0fb6c3e9844d3902602792963a2ce3ba09c91315e1461ab90d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8782d1c22a5e0fb6c3e9844d3902602792963a2ce3ba09c91315e1461ab90d4", kill_on_drop: false }`
[INFO] [stdout] b8782d1c22a5e0fb6c3e9844d3902602792963a2ce3ba09c91315e1461ab90d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d7af796c4223923a8f3e121ef35a7f615b26be6c11da765999fdcc2ac4cdd82
[INFO] running `Command { std: "docker" "start" "-a" "6d7af796c4223923a8f3e121ef35a7f615b26be6c11da765999fdcc2ac4cdd82", kill_on_drop: false }`
[INFO] [stderr]    Compiling developing_today v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut hasher = &mut DefaultHasher::new();
[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: field is never read: `hash_register`
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     hash_register: HashSetMap<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hasher`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     hasher: Option<Rc<dyn Hasher>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn insert(&mut self, hasher: &'a mut dyn Hasher, input: T) -> Option<Rc<T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_capacity`
[INFO] [stdout]   --> src/lib.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_with_capacity(capacity: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_hasher`
[INFO] [stdout]   --> src/lib.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_with_hasher(hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_capacity_and_hasher`
[INFO] [stdout]   --> src/lib.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new_with_capacity_and_hasher(capacity: usize, hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build`
[INFO] [stdout]   --> src/lib.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn build(self) -> HashMap<Rc<u64>, Rc<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_hasher`
[INFO] [stdout]   --> src/lib.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn with_hasher(mut self, hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hasher`
[INFO] [stdout]   --> src/lib.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn hasher(&mut self, hasher: Rc<dyn Hasher>) -> &mut Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/lib.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/developing_today-30512d9e41302a1b)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/developing_today-96497869a273f6b5)
[INFO] running `Command { std: "docker" "inspect" "6d7af796c4223923a8f3e121ef35a7f615b26be6c11da765999fdcc2ac4cdd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d7af796c4223923a8f3e121ef35a7f615b26be6c11da765999fdcc2ac4cdd82", kill_on_drop: false }`
[INFO] [stdout] 6d7af796c4223923a8f3e121ef35a7f615b26be6c11da765999fdcc2ac4cdd82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 59fe5e583f54e5a7f4d72c370decabfc3fe62e2ca50fa8150ceebcaa2381368c
[INFO] running `Command { std: "docker" "start" "-a" "59fe5e583f54e5a7f4d72c370decabfc3fe62e2ca50fa8150ceebcaa2381368c", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut hasher = &mut DefaultHasher::new();
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `hash_register`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     hash_register: HashSetMap<T>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `hasher`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     hasher: Option<Rc<dyn Hasher>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert`
[INFO] [stderr]   --> src/lib.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn insert(&mut self, hasher: &'a mut dyn Hasher, input: T) -> Option<Rc<T>> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/lib.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_with_capacity`
[INFO] [stderr]   --> src/lib.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new_with_capacity(capacity: usize) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_with_hasher`
[INFO] [stderr]   --> src/lib.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new_with_hasher(hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_with_capacity_and_hasher`
[INFO] [stderr]   --> src/lib.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn new_with_capacity_and_hasher(capacity: usize, hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `build`
[INFO] [stderr]   --> src/lib.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn build(self) -> HashMap<Rc<u64>, Rc<T>> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `with_hasher`
[INFO] [stderr]   --> src/lib.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn with_hasher(mut self, hasher: Rc<dyn Hasher>) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hasher`
[INFO] [stderr]   --> src/lib.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn hasher(&mut self, hasher: Rc<dyn Hasher>) -> &mut Self {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/lib.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_empty`
[INFO] [stderr]   --> src/lib.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `clear`
[INFO] [stderr]   --> src/lib.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn clear(&mut self) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `developing_today` (bin "developing_today" test) generated 14 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/developing_today-30512d9e41302a1b)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/developing_today-96497869a273f6b5)
[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] [stderr]    Doc-tests developing_today
[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" "59fe5e583f54e5a7f4d72c370decabfc3fe62e2ca50fa8150ceebcaa2381368c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59fe5e583f54e5a7f4d72c370decabfc3fe62e2ca50fa8150ceebcaa2381368c", kill_on_drop: false }`
[INFO] [stdout] 59fe5e583f54e5a7f4d72c370decabfc3fe62e2ca50fa8150ceebcaa2381368c