[INFO] cloning repository https://github.com/LU15W1R7H/joy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LU15W1R7H/joy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fjoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fjoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7214191ca919c860f35f07b38bc59a1fedeba7c9
[INFO] testing LU15W1R7H/joy against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fjoy" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LU15W1R7H/joy on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LU15W1R7H/joy
[INFO] finished tweaking git repo https://github.com/LU15W1R7H/joy
[INFO] tweaked toml for git repo https://github.com/LU15W1R7H/joy written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/LU15W1R7H/joy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af7f3048aef5805e7c3c7d015d2d71aa7e0a0d28b296eabd7ff663c61ba7a245
[INFO] running `Command { std: "docker" "start" "-a" "af7f3048aef5805e7c3c7d015d2d71aa7e0a0d28b296eabd7ff663c61ba7a245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af7f3048aef5805e7c3c7d015d2d71aa7e0a0d28b296eabd7ff663c61ba7a245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7f3048aef5805e7c3c7d015d2d71aa7e0a0d28b296eabd7ff663c61ba7a245", kill_on_drop: false }`
[INFO] [stdout] af7f3048aef5805e7c3c7d015d2d71aa7e0a0d28b296eabd7ff663c61ba7a245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4b22b228a6e603c634e3ce80fed85b3f236edcccb518aa5d9b847e86d1a2cd6
[INFO] running `Command { std: "docker" "start" "-a" "d4b22b228a6e603c634e3ce80fed85b3f236edcccb518aa5d9b847e86d1a2cd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling smart-pointers v0.1.0 (/opt/rustwide/workdir/smart-pointers)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/cell.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/rc.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(v: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shared`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Shared(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exclusive`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Exclusive,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn borrow(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow_mut`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn borrow_mut(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d4b22b228a6e603c634e3ce80fed85b3f236edcccb518aa5d9b847e86d1a2cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b22b228a6e603c634e3ce80fed85b3f236edcccb518aa5d9b847e86d1a2cd6", kill_on_drop: false }`
[INFO] [stdout] d4b22b228a6e603c634e3ce80fed85b3f236edcccb518aa5d9b847e86d1a2cd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2805247210f7fd8a48781ff75ad9be1d57130a0aa46c96c4706cbce46d5a86bb
[INFO] running `Command { std: "docker" "start" "-a" "2805247210f7fd8a48781ff75ad9be1d57130a0aa46c96c4706cbce46d5a86bb", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/cell.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling smart-pointers v0.1.0 (/opt/rustwide/workdir/smart-pointers)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/rc.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(v: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shared`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Shared(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exclusive`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Exclusive,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn borrow(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow_mut`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn borrow_mut(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/cell.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/rc.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(v: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shared`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Shared(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exclusive`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Exclusive,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn borrow(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow_mut`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn borrow_mut(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "2805247210f7fd8a48781ff75ad9be1d57130a0aa46c96c4706cbce46d5a86bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2805247210f7fd8a48781ff75ad9be1d57130a0aa46c96c4706cbce46d5a86bb", kill_on_drop: false }`
[INFO] [stdout] 2805247210f7fd8a48781ff75ad9be1d57130a0aa46c96c4706cbce46d5a86bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2af49892b81e21d69aa045b536b15854b6503b92b8d9b7df0ae309073ad1dfd9
[INFO] running `Command { std: "docker" "start" "-a" "2af49892b81e21d69aa045b536b15854b6503b92b8d9b7df0ae309073ad1dfd9", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> smart-pointers/src/cell.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn new(value: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> smart-pointers/src/rc.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(v: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Shared`
[INFO] [stderr]  --> smart-pointers/src/refcell.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Shared(usize),
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Copy, Clone)]
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Exclusive`
[INFO] [stderr]  --> smart-pointers/src/refcell.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Exclusive,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> smart-pointers/src/refcell.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Copy, Clone)]
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> smart-pointers/src/refcell.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(value: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `borrow`
[INFO] [stderr]   --> smart-pointers/src/refcell.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn borrow(&self) -> Option<Ref<'_, T>> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `borrow_mut`
[INFO] [stderr]   --> smart-pointers/src/refcell.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn borrow_mut(&self) -> Option<RefMut<'_, T>> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `smart-pointers` (lib) generated 7 warnings
[INFO] [stderr] warning: `smart-pointers` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/smart_pointers-0a2de35e5212c4ac)
[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 smart-pointers
[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" "2af49892b81e21d69aa045b536b15854b6503b92b8d9b7df0ae309073ad1dfd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2af49892b81e21d69aa045b536b15854b6503b92b8d9b7df0ae309073ad1dfd9", kill_on_drop: false }`
[INFO] [stdout] 2af49892b81e21d69aa045b536b15854b6503b92b8d9b7df0ae309073ad1dfd9