[INFO] cloning repository https://github.com/taraka/rus-linux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taraka/rus-linux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaraka%2Frus-linux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaraka%2Frus-linux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c710642ae749fe1a437c3ac49058ea42429713b4
[INFO] checking taraka/rus-linux against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaraka%2Frus-linux" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/taraka/rus-linux
[INFO] finished tweaking git repo https://github.com/taraka/rus-linux
[INFO] tweaked toml for git repo https://github.com/taraka/rus-linux written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/taraka/rus-linux on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/taraka/rus-linux 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v3.1.0
[INFO] [stderr]   Downloaded textwrap v0.14.2
[INFO] [stderr]   Downloaded clap v3.1.0
[INFO] [stderr]   Downloaded nix v0.23.1
[INFO] [stderr]   Downloaded libc v0.2.117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a4bb99d79e3f4f39b45433fce9c6acb827c1374a1949d8d081dee1812274356
[INFO] running `Command { std: "docker" "start" "-a" "5a4bb99d79e3f4f39b45433fce9c6acb827c1374a1949d8d081dee1812274356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a4bb99d79e3f4f39b45433fce9c6acb827c1374a1949d8d081dee1812274356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a4bb99d79e3f4f39b45433fce9c6acb827c1374a1949d8d081dee1812274356", kill_on_drop: false }`
[INFO] [stdout] 5a4bb99d79e3f4f39b45433fce9c6acb827c1374a1949d8d081dee1812274356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb79a02d10934139d4a88a82cb721407d2ce865837dc853cc2ad993d44da8f5d
[INFO] running `Command { std: "docker" "start" "-a" "bb79a02d10934139d4a88a82cb721407d2ce865837dc853cc2ad993d44da8f5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.0
[INFO] [stderr]     Checking clap v3.1.0
[INFO] [stderr]     Checking rust-user-space v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/init.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn run_sh() {
[INFO] [stdout]    |  _____________^
[INFO] [stdout] 20 | |     let path_c = CString::new("/bin/sh").unwrap();
[INFO] [stdout] 21 | |     let argv_c: Vec<CString> = vec![path_c.clone()];
[INFO] [stdout] 22 | |     let env_c: Vec<CString> = vec![];
[INFO] [stdout] 23 | |
[INFO] [stdout] 24 | |     execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]    | |     ---------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/init.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/init.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn run_sh() {
[INFO] [stdout]    |  _____________^
[INFO] [stdout] 20 | |     let path_c = CString::new("/bin/sh").unwrap();
[INFO] [stdout] 21 | |     let argv_c: Vec<CString> = vec![path_c.clone()];
[INFO] [stdout] 22 | |     let env_c: Vec<CString> = vec![];
[INFO] [stdout] 23 | |
[INFO] [stdout] 24 | |     execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]    | |     ---------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/init.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/sh.rs:129:38
[INFO] [stdout]     |
[INFO] [stdout] 129 |               Ok(ForkResult::Child) => {
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout] 130 | |                 execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]     | |                 ---------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 131 | |             }
[INFO] [stdout]     | |_____________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]    --> src/sh.rs:130:17
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/sh.rs:129:38
[INFO] [stdout]     |
[INFO] [stdout] 129 |               Ok(ForkResult::Child) => {
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout] 130 | |                 execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]     | |                 ---------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 131 | |             }
[INFO] [stdout]     | |_____________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]    --> src/sh.rs:130:17
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 execve(&path_c, &argv_c[..], &env_c[..]).expect("evecve failed");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.95s
[INFO] running `Command { std: "docker" "inspect" "bb79a02d10934139d4a88a82cb721407d2ce865837dc853cc2ad993d44da8f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb79a02d10934139d4a88a82cb721407d2ce865837dc853cc2ad993d44da8f5d", kill_on_drop: false }`
[INFO] [stdout] bb79a02d10934139d4a88a82cb721407d2ce865837dc853cc2ad993d44da8f5d