[INFO] cloning repository https://github.com/tomyamkum/rust-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomyamkum/rust-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomyamkum%2Frust-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomyamkum%2Frust-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a655ad4e1d9bb3d8884d0472665eed1da8e41f2
[INFO] checking tomyamkum/rust-shell against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomyamkum%2Frust-shell" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tomyamkum/rust-shell
[INFO] finished tweaking git repo https://github.com/tomyamkum/rust-shell
[INFO] tweaked toml for git repo https://github.com/tomyamkum/rust-shell written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tomyamkum/rust-shell on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tomyamkum/rust-shell 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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c32f428fa95abef926feeecfc6263e0e78ddaf20bcc601e08dd1f99e8e0797e
[INFO] running `Command { std: "docker" "start" "-a" "2c32f428fa95abef926feeecfc6263e0e78ddaf20bcc601e08dd1f99e8e0797e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c32f428fa95abef926feeecfc6263e0e78ddaf20bcc601e08dd1f99e8e0797e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c32f428fa95abef926feeecfc6263e0e78ddaf20bcc601e08dd1f99e8e0797e", kill_on_drop: false }`
[INFO] [stdout] 2c32f428fa95abef926feeecfc6263e0e78ddaf20bcc601e08dd1f99e8e0797e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65ca7178ebefded189b383c758170cc705de0908b7a43b0bc74481a36d636bb
[INFO] running `Command { std: "docker" "start" "-a" "b65ca7178ebefded189b383c758170cc705de0908b7a43b0bc74481a36d636bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:27:2
[INFO] [stdout]     |
[INFO] [stdout] 27  | /      loop{
[INFO] [stdout] 28  | |          match &dir.to_str() {
[INFO] [stdout] 29  | |              Some(v) => println!("{}", v.blue()),
[INFO] [stdout] 30  | |              None => println!("{}", "失敗".red()),
[INFO] [stdout] ...   |
[INFO] [stdout] 182 | |/                         execv(
[INFO] [stdout] 183 | ||                             &path,
[INFO] [stdout] 184 | ||                             &[
[INFO] [stdout] 185 | ||                                 path.clone(),
[INFO] [stdout] 186 | ||                                 args,
[INFO] [stdout] 187 | ||                             ],
[INFO] [stdout] 188 | ||                         ).expect("textプログラム失敗");
[INFO] [stdout]     | ||______________________________________________________- any code following this expression is unreachable
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |          };
[INFO] [stdout] 251 | |      }
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `void::Void`, which is uninhabited
[INFO] [stdout]    --> src/main.rs:182:7
[INFO] [stdout]     |
[INFO] [stdout] 182 | /                         execv(
[INFO] [stdout] 183 | |                             &path,
[INFO] [stdout] 184 | |                             &[
[INFO] [stdout] 185 | |                                 path.clone(),
[INFO] [stdout] 186 | |                                 args,
[INFO] [stdout] 187 | |                             ],
[INFO] [stdout] 188 | |                         ).expect("textプログラム失敗");
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:27:2
[INFO] [stdout]     |
[INFO] [stdout] 27  | /      loop{
[INFO] [stdout] 28  | |          match &dir.to_str() {
[INFO] [stdout] 29  | |              Some(v) => println!("{}", v.blue()),
[INFO] [stdout] 30  | |              None => println!("{}", "失敗".red()),
[INFO] [stdout] ...   |
[INFO] [stdout] 209 | |/                         execv(
[INFO] [stdout] 210 | ||                             &path,
[INFO] [stdout] 211 | ||                             &[
[INFO] [stdout] 212 | ||                                 path.clone(),
[INFO] [stdout] 213 | ||                                 args,
[INFO] [stdout] 214 | ||                             ],
[INFO] [stdout] 215 | ||                         ).expect("textプログラム失敗");
[INFO] [stdout]     | ||______________________________________________________- any code following this expression is unreachable
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |          };
[INFO] [stdout] 251 | |      }
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `void::Void`, which is uninhabited
[INFO] [stdout]    --> src/main.rs:209:7
[INFO] [stdout]     |
[INFO] [stdout] 209 | /                         execv(
[INFO] [stdout] 210 | |                             &path,
[INFO] [stdout] 211 | |                             &[
[INFO] [stdout] 212 | |                                 path.clone(),
[INFO] [stdout] 213 | |                                 args,
[INFO] [stdout] 214 | |                             ],
[INFO] [stdout] 215 | |                         ).expect("textプログラム失敗");
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:27:2
[INFO] [stdout]     |
[INFO] [stdout] 27  | /      loop{
[INFO] [stdout] 28  | |          match &dir.to_str() {
[INFO] [stdout] 29  | |              Some(v) => println!("{}", v.blue()),
[INFO] [stdout] 30  | |              None => println!("{}", "失敗".red()),
[INFO] [stdout] ...   |
[INFO] [stdout] 235 | |/                                 execv(
[INFO] [stdout] 236 | ||                                     &path, 
[INFO] [stdout] 237 | ||                                     &[
[INFO] [stdout] 238 | ||                                         path.clone(),
[INFO] [stdout] 239 | ||                                         args,
[INFO] [stdout] 240 | ||                                     ],
[INFO] [stdout] 241 | ||                                 ).expect("子プロセス失敗");
[INFO] [stdout]     | ||__________________________________________________________- any code following this expression is unreachable
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |          };
[INFO] [stdout] 251 | |      }
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `void::Void`, which is uninhabited
[INFO] [stdout]    --> src/main.rs:235:9
[INFO] [stdout]     |
[INFO] [stdout] 235 | /                                 execv(
[INFO] [stdout] 236 | |                                     &path, 
[INFO] [stdout] 237 | |                                     &[
[INFO] [stdout] 238 | |                                         path.clone(),
[INFO] [stdout] 239 | |                                         args,
[INFO] [stdout] 240 | |                                     ],
[INFO] [stdout] 241 | |                                 ).expect("子プロセス失敗");
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:27:2
[INFO] [stdout]     |
[INFO] [stdout] 27  | /      loop{
[INFO] [stdout] 28  | |          match &dir.to_str() {
[INFO] [stdout] 29  | |              Some(v) => println!("{}", v.blue()),
[INFO] [stdout] 30  | |              None => println!("{}", "失敗".red()),
[INFO] [stdout] ...   |
[INFO] [stdout] 182 | |/                         execv(
[INFO] [stdout] 183 | ||                             &path,
[INFO] [stdout] 184 | ||                             &[
[INFO] [stdout] 185 | ||                                 path.clone(),
[INFO] [stdout] 186 | ||                                 args,
[INFO] [stdout] 187 | ||                             ],
[INFO] [stdout] 188 | ||                         ).expect("textプログラム失敗");
[INFO] [stdout]     | ||______________________________________________________- any code following this expression is unreachable
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |          };
[INFO] [stdout] 251 | |      }
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `void::Void`, which is uninhabited
[INFO] [stdout]    --> src/main.rs:182:7
[INFO] [stdout]     |
[INFO] [stdout] 182 | /                         execv(
[INFO] [stdout] 183 | |                             &path,
[INFO] [stdout] 184 | |                             &[
[INFO] [stdout] 185 | |                                 path.clone(),
[INFO] [stdout] 186 | |                                 args,
[INFO] [stdout] 187 | |                             ],
[INFO] [stdout] 188 | |                         ).expect("textプログラム失敗");
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:27:2
[INFO] [stdout]     |
[INFO] [stdout] 27  | /      loop{
[INFO] [stdout] 28  | |          match &dir.to_str() {
[INFO] [stdout] 29  | |              Some(v) => println!("{}", v.blue()),
[INFO] [stdout] 30  | |              None => println!("{}", "失敗".red()),
[INFO] [stdout] ...   |
[INFO] [stdout] 209 | |/                         execv(
[INFO] [stdout] 210 | ||                             &path,
[INFO] [stdout] 211 | ||                             &[
[INFO] [stdout] 212 | ||                                 path.clone(),
[INFO] [stdout] 213 | ||                                 args,
[INFO] [stdout] 214 | ||                             ],
[INFO] [stdout] 215 | ||                         ).expect("textプログラム失敗");
[INFO] [stdout]     | ||______________________________________________________- any code following this expression is unreachable
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |          };
[INFO] [stdout] 251 | |      }
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `void::Void`, which is uninhabited
[INFO] [stdout]    --> src/main.rs:209:7
[INFO] [stdout]     |
[INFO] [stdout] 209 | /                         execv(
[INFO] [stdout] 210 | |                             &path,
[INFO] [stdout] 211 | |                             &[
[INFO] [stdout] 212 | |                                 path.clone(),
[INFO] [stdout] 213 | |                                 args,
[INFO] [stdout] 214 | |                             ],
[INFO] [stdout] 215 | |                         ).expect("textプログラム失敗");
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:27:2
[INFO] [stdout]     |
[INFO] [stdout] 27  | /      loop{
[INFO] [stdout] 28  | |          match &dir.to_str() {
[INFO] [stdout] 29  | |              Some(v) => println!("{}", v.blue()),
[INFO] [stdout] 30  | |              None => println!("{}", "失敗".red()),
[INFO] [stdout] ...   |
[INFO] [stdout] 235 | |/                                 execv(
[INFO] [stdout] 236 | ||                                     &path, 
[INFO] [stdout] 237 | ||                                     &[
[INFO] [stdout] 238 | ||                                         path.clone(),
[INFO] [stdout] 239 | ||                                         args,
[INFO] [stdout] 240 | ||                                     ],
[INFO] [stdout] 241 | ||                                 ).expect("子プロセス失敗");
[INFO] [stdout]     | ||__________________________________________________________- any code following this expression is unreachable
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |          };
[INFO] [stdout] 251 | |      }
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `void::Void`, which is uninhabited
[INFO] [stdout]    --> src/main.rs:235:9
[INFO] [stdout]     |
[INFO] [stdout] 235 | /                                 execv(
[INFO] [stdout] 236 | |                                     &path, 
[INFO] [stdout] 237 | |                                     &[
[INFO] [stdout] 238 | |                                         path.clone(),
[INFO] [stdout] 239 | |                                         args,
[INFO] [stdout] 240 | |                                     ],
[INFO] [stdout] 241 | |                                 ).expect("子プロセス失敗");
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut target: String;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut target: String;
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "b65ca7178ebefded189b383c758170cc705de0908b7a43b0bc74481a36d636bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65ca7178ebefded189b383c758170cc705de0908b7a43b0bc74481a36d636bb", kill_on_drop: false }`
[INFO] [stdout] b65ca7178ebefded189b383c758170cc705de0908b7a43b0bc74481a36d636bb