[INFO] cloning repository https://github.com/Denteyon/simple-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Denteyon/simple-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDenteyon%2Fsimple-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDenteyon%2Fsimple-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9c843ae31a1ac16ae3f1636b9adef7b53d3c50b
[INFO] checking Denteyon/simple-shell/b9c843ae31a1ac16ae3f1636b9adef7b53d3c50b against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDenteyon%2Fsimple-shell" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Denteyon/simple-shell on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Denteyon/simple-shell
[INFO] finished tweaking git repo https://github.com/Denteyon/simple-shell
[INFO] tweaked toml for git repo https://github.com/Denteyon/simple-shell written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Denteyon/simple-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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95bfcf35845a5da4849212844e0c5023d26315e5b49d974b481faf2e1132e858
[INFO] running `Command { std: "docker" "start" "-a" "95bfcf35845a5da4849212844e0c5023d26315e5b49d974b481faf2e1132e858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95bfcf35845a5da4849212844e0c5023d26315e5b49d974b481faf2e1132e858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95bfcf35845a5da4849212844e0c5023d26315e5b49d974b481faf2e1132e858", kill_on_drop: false }`
[INFO] [stdout] 95bfcf35845a5da4849212844e0c5023d26315e5b49d974b481faf2e1132e858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 083c3fef2e6169ff6c446354d4a5e06718a9bcaa7e09ff1fe2308414131c2e17
[INFO] running `Command { std: "docker" "start" "-a" "083c3fef2e6169ff6c446354d4a5e06718a9bcaa7e09ff1fe2308414131c2e17", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking simple-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0133]: call to unsafe function `nix::unistd::fork` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> src/main.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let _ = match fork() {
[INFO] [stdout]    |                       ^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `nix::unistd::fork` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> src/main.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let _ = match fork() {
[INFO] [stdout]    |                       ^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-shell` (bin "simple-shell" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `simple-shell` (bin "simple-shell") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "083c3fef2e6169ff6c446354d4a5e06718a9bcaa7e09ff1fe2308414131c2e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "083c3fef2e6169ff6c446354d4a5e06718a9bcaa7e09ff1fe2308414131c2e17", kill_on_drop: false }`
[INFO] [stdout] 083c3fef2e6169ff6c446354d4a5e06718a9bcaa7e09ff1fe2308414131c2e17