[INFO] cloning repository https://github.com/yeqf911/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yeqf911/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeqf911%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeqf911%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a039acc49828047a409b581a0a8d8792ae3107b
[INFO] checking yeqf911/learn_rust against master#74c3f5a146860c94ff4d179fc3bfa34f879adf41 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeqf911%2Flearn_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yeqf911/learn_rust on toolchain 74c3f5a146860c94ff4d179fc3bfa34f879adf41
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yeqf911/learn_rust
[INFO] finished tweaking git repo https://github.com/yeqf911/learn_rust
[INFO] tweaked toml for git repo https://github.com/yeqf911/learn_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yeqf911/learn_rust 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" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking yeqf911/learn_rust against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeqf911%2Flearn_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yeqf911/learn_rust on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yeqf911/learn_rust
[INFO] finished tweaking git repo https://github.com/yeqf911/learn_rust
[INFO] tweaked toml for git repo https://github.com/yeqf911/learn_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yeqf911/learn_rust 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking yeqf911/learn_rust against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyeqf911%2Flearn_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yeqf911/learn_rust on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yeqf911/learn_rust
[INFO] finished tweaking git repo https://github.com/yeqf911/learn_rust
[INFO] tweaked toml for git repo https://github.com/yeqf911/learn_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yeqf911/learn_rust 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6e3cc6a2a4767c346ad3bea7db44b44ed6cac1f6aba2d90f5de6732565b0511
[INFO] running `Command { std: "docker" "start" "-a" "d6e3cc6a2a4767c346ad3bea7db44b44ed6cac1f6aba2d90f5de6732565b0511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e3cc6a2a4767c346ad3bea7db44b44ed6cac1f6aba2d90f5de6732565b0511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e3cc6a2a4767c346ad3bea7db44b44ed6cac1f6aba2d90f5de6732565b0511", kill_on_drop: false }`
[INFO] [stdout] d6e3cc6a2a4767c346ad3bea7db44b44ed6cac1f6aba2d90f5de6732565b0511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d74faafc287dc0ba6045d1254eeaabe5288411c70452dd68b83ae2f91a93f20
[INFO] running `Command { std: "docker" "start" "-a" "0d74faafc287dc0ba6045d1254eeaabe5288411c70452dd68b83ae2f91a93f20", kill_on_drop: false }`
[INFO] [stderr]     Checking learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `collection::string`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use collection::string;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collection::vector`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use collection::vector;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collection::string`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use collection::string;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collection::vector`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use collection::vector;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/collection/map.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let key = e.key();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vref`
[INFO] [stdout]   --> src/collection/map.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let vref = e.or_insert(0);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/collection/map.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let key = e.key();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vref`
[INFO] [stdout]   --> src/collection/map.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let vref = e.or_insert(0);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vs`
[INFO] [stdout]   --> src/collection/vector.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let vs = vec![s1, s2, s3];
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_vs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]   --> src/collection/vector.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let first = &v[0];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vs`
[INFO] [stdout]   --> src/collection/vector.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let vs = vec![s1, s2, s3];
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_vs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]   --> src/collection/vector.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let first = &v[0];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/learn_enum.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         aaaa => println!("hello ssd"),
[INFO] [stdout]    |         ---- matches any value
[INFO] [stdout] 63 |         bbbb => println!("world dsda"),
[INFO] [stdout]    |         ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/learn_enum.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut count = 1;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]   --> src/learn_enum.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         count += 1;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aaaa`
[INFO] [stdout]   --> src/learn_enum.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         aaaa => println!("hello ssd"),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_aaaa`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bbbb`
[INFO] [stdout]   --> src/learn_enum.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         bbbb => println!("world dsda"),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_bbbb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/learn_enum.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         aaaa => println!("hello ssd"),
[INFO] [stdout]    |         ---- matches any value
[INFO] [stdout] 63 |         bbbb => println!("world dsda"),
[INFO] [stdout]    |         ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/learn_enum.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut count = 1;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]   --> src/learn_enum.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         count += 1;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aaaa`
[INFO] [stdout]   --> src/learn_enum.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         aaaa => println!("hello ssd"),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_aaaa`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bbbb`
[INFO] [stdout]   --> src/learn_enum.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         bbbb => println!("world dsda"),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_bbbb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/collection/string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/collection/vector.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DifferentType` is never used
[INFO] [stdout]   --> src/collection/vector.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 | enum DifferentType<T> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DifferentType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/learn_enum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_one` is never used
[INFO] [stdout]   --> src/learn_enum.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UsState` is never used
[INFO] [stdout]   --> src/learn_enum.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 | enum UsState {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Coin` is never used
[INFO] [stdout]   --> src/learn_enum.rs:80:6
[INFO] [stdout]    |
[INFO] [stdout] 80 | enum Coin {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_in_cents` is never used
[INFO] [stdout]   --> src/learn_enum.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IpAddrKind` is never used
[INFO] [stdout]    --> src/learn_enum.rs:103:6
[INFO] [stdout]     |
[INFO] [stdout] 103 | enum IpAddrKind {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/collection/string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MyIpAddr` is never used
[INFO] [stdout]    --> src/learn_enum.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 | enum MyIpAddr {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MyIpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/collection/vector.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Address` is never used
[INFO] [stdout]    --> src/learn_enum.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 | enum Address {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Address` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DifferentType` is never used
[INFO] [stdout]   --> src/collection/vector.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 | enum DifferentType<T> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DifferentType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/learn_enum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/learn_struct.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_one` is never used
[INFO] [stdout]   --> src/learn_enum.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/learn_struct.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Color(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/learn_struct.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Point(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UsState` is never used
[INFO] [stdout]   --> src/learn_enum.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 | enum UsState {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Coin` is never used
[INFO] [stdout]   --> src/learn_enum.rs:80:6
[INFO] [stdout]    |
[INFO] [stdout] 80 | enum Coin {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/learn_struct.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct User {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_in_cents` is never used
[INFO] [stdout]   --> src/learn_enum.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/learn_struct.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl User {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 45 |     fn new(name: String, age: usize) -> User {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IpAddrKind` is never used
[INFO] [stdout]    --> src/learn_enum.rs:103:6
[INFO] [stdout]     |
[INFO] [stdout] 103 | enum IpAddrKind {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MyIpAddr` is never used
[INFO] [stdout]    --> src/learn_enum.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 | enum MyIpAddr {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MyIpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Address` is never used
[INFO] [stdout]    --> src/learn_enum.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 | enum Address {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Address` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/learn_struct.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/learn_struct.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Color(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/learn_struct.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Point(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/learn_struct.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct User {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/learn_struct.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl User {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 45 |     fn new(name: String, age: usize) -> User {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "0d74faafc287dc0ba6045d1254eeaabe5288411c70452dd68b83ae2f91a93f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d74faafc287dc0ba6045d1254eeaabe5288411c70452dd68b83ae2f91a93f20", kill_on_drop: false }`
[INFO] [stdout] 0d74faafc287dc0ba6045d1254eeaabe5288411c70452dd68b83ae2f91a93f20