[INFO] fetching crate yash 0.1.0...
[INFO] checking yash-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate yash 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate yash 0.1.0
[INFO] finished tweaking crates.io crate yash 0.1.0
[INFO] tweaked toml for crates.io crate yash 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yash 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate yash 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11028d48814d26fb255c01e3e1dcb07cc996eca4bfb7d664507ac2200d65086e
[INFO] running `Command { std: "docker" "start" "-a" "11028d48814d26fb255c01e3e1dcb07cc996eca4bfb7d664507ac2200d65086e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11028d48814d26fb255c01e3e1dcb07cc996eca4bfb7d664507ac2200d65086e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11028d48814d26fb255c01e3e1dcb07cc996eca4bfb7d664507ac2200d65086e", kill_on_drop: false }`
[INFO] [stdout] 11028d48814d26fb255c01e3e1dcb07cc996eca4bfb7d664507ac2200d65086e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d57dd7e63f4cfa04422b8ede45c63b3fefe5524138926b959a3d0cb9e36f51e
[INFO] running `Command { std: "docker" "start" "-a" "9d57dd7e63f4cfa04422b8ede45c63b3fefe5524138926b959a3d0cb9e36f51e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking yash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/commands.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let afet = (15 - x.chars().count());
[INFO] [stdout]   |                    ^                      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -         let afet = (15 - x.chars().count());
[INFO] [stdout] 9 +         let afet = 15 - x.chars().count();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `colored::ColoredString`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use colored::ColoredString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/commands.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let afet = (15 - x.chars().count());
[INFO] [stdout]   |                    ^                      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -         let afet = (15 - x.chars().count());
[INFO] [stdout] 9 +         let afet = 15 - x.chars().count();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `colored::ColoredString`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use colored::ColoredString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | /     loop {
[INFO] [stdout] 28 | |         let x = input_imp();
[INFO] [stdout] 29 | |         match &x[..] {
[INFO] [stdout] 30 | |             "help" => commands::help(&inst),
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 37 |       commands::help(&inst);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | /     loop {
[INFO] [stdout] 28 | |         let x = input_imp();
[INFO] [stdout] 29 | |         match &x[..] {
[INFO] [stdout] 30 | |             "help" => commands::help(&inst),
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 37 |       commands::help(&inst);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/message.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         _ => {
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/message.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Event::Error => println!("[{0}] {1}", "ERR".red(), msg),
[INFO] [stdout]    |         ------------ matches some of the same values
[INFO] [stdout] 27 |         Event::Warning => println!("[{0}] {1}", "WARN".yellow(), msg),
[INFO] [stdout]    |         -------------- matches some of the same values
[INFO] [stdout] 28 |         Event::Info => println!("[{0}] {1}", "MSG".blue(), msg),
[INFO] [stdout]    |         ----------- matches some of the same values
[INFO] [stdout] 29 |         Event::Success => println!("[{0}] {1}", "SUCCESS".green(), msg),
[INFO] [stdout]    |         -------------- matches some of the same values
[INFO] [stdout] 30 |         _ => {
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Info`, `Warning`, and `Success` are never constructed
[INFO] [stdout]  --> src/message.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Event {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 5 |     Info,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     Error,
[INFO] [stdout] 8 |     Success,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `info` is never used
[INFO] [stdout]   --> src/message.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn info(msg: String) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `warn` is never used
[INFO] [stdout]   --> src/message.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn warn(msg: String) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `success` is never used
[INFO] [stdout]   --> src/message.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn success(msg: String) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/message.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         _ => {
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/message.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Event::Error => println!("[{0}] {1}", "ERR".red(), msg),
[INFO] [stdout]    |         ------------ matches some of the same values
[INFO] [stdout] 27 |         Event::Warning => println!("[{0}] {1}", "WARN".yellow(), msg),
[INFO] [stdout]    |         -------------- matches some of the same values
[INFO] [stdout] 28 |         Event::Info => println!("[{0}] {1}", "MSG".blue(), msg),
[INFO] [stdout]    |         ----------- matches some of the same values
[INFO] [stdout] 29 |         Event::Success => println!("[{0}] {1}", "SUCCESS".green(), msg),
[INFO] [stdout]    |         -------------- matches some of the same values
[INFO] [stdout] 30 |         _ => {
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Info`, `Warning`, and `Success` are never constructed
[INFO] [stdout]  --> src/message.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Event {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 5 |     Info,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     Error,
[INFO] [stdout] 8 |     Success,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `info` is never used
[INFO] [stdout]   --> src/message.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn info(msg: String) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `warn` is never used
[INFO] [stdout]   --> src/message.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn warn(msg: String) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `success` is never used
[INFO] [stdout]   --> src/message.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn success(msg: String) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "9d57dd7e63f4cfa04422b8ede45c63b3fefe5524138926b959a3d0cb9e36f51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d57dd7e63f4cfa04422b8ede45c63b3fefe5524138926b959a3d0cb9e36f51e", kill_on_drop: false }`
[INFO] [stdout] 9d57dd7e63f4cfa04422b8ede45c63b3fefe5524138926b959a3d0cb9e36f51e