[INFO] fetching crate microchassis 0.0.6...
[INFO] checking microchassis-0.0.6 against a7c37f9f0ee5e93396106e9de20f4a86b4154e63 for pr-129249-4
[INFO] extracting crate microchassis 0.0.6 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate microchassis 0.0.6
[INFO] finished tweaking crates.io crate microchassis 0.0.6
[INFO] tweaked toml for crates.io crate microchassis 0.0.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate microchassis 0.0.6 on toolchain a7c37f9f0ee5e93396106e9de20f4a86b4154e63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7c37f9f0ee5e93396106e9de20f4a86b4154e63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate microchassis 0.0.6 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" "+a7c37f9f0ee5e93396106e9de20f4a86b4154e63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tikv-jemallocator v0.6.0
[INFO] [stderr]   Downloaded cc v1.1.21
[INFO] [stderr]   Downloaded tikv-jemalloc-ctl v0.6.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.64
[INFO] [stderr]   Downloaded impl-more v0.1.6
[INFO] [stderr]   Downloaded bytestring v1.3.1
[INFO] [stderr]   Downloaded thiserror v1.0.64
[INFO] [stderr]   Downloaded tempfile v3.12.0
[INFO] [stderr]   Downloaded actix-service v2.0.2
[INFO] [stderr]   Downloaded bytes v1.7.2
[INFO] [stderr]   Downloaded derive_more v0.99.18
[INFO] [stderr]   Downloaded actix-server v2.5.0
[INFO] [stderr]   Downloaded redox_syscall v0.5.6
[INFO] [stderr]   Downloaded actix-http v3.9.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.14
[INFO] [stderr]   Downloaded httparse v1.9.4
[INFO] [stderr]   Downloaded actix-web v4.9.0
[INFO] [stderr]   Downloaded tokio-util v0.7.12
[INFO] [stderr]   Downloaded flate2 v1.0.34
[INFO] [stderr]   Downloaded brotli-decompressor v4.0.1
[INFO] [stderr]   Downloaded libc v0.2.159
[INFO] [stderr]   Downloaded tikv-jemalloc-sys v0.6.0+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f
[INFO] running `Command { std: "docker" "start" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f" "/opt/rustwide/cargo-home/bin/cargo" "+a7c37f9f0ee5e93396106e9de20f4a86b4154e63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f" "/opt/rustwide/cargo-home/bin/cargo" "+a7c37f9f0ee5e93396106e9de20f4a86b4154e63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking gimli v0.31.0
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking bytes v1.7.2
[INFO] [stderr]    Compiling cc v1.1.21
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking object v0.36.4
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling tikv-jemalloc-sys v0.6.0+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7
[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking addr2line v0.24.1
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tikv-jemallocator v0.6.0
[INFO] [stderr]     Checking tikv-jemalloc-ctl v0.6.0
[INFO] [stderr]     Checking microchassis v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this creates a dangling pointer because temporary `Vec<u8>` is dropped at end of statement
[INFO] [stdout]    --> src/profiling/mallctl.rs:163:68
[INFO] [stdout]     |
[INFO] [stdout] 163 |             Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(),
[INFO] [stdout]     |                        ------------------------------------------- ^^^^^^ pointer created here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this `Vec<u8>` is dropped at end of statement
[INFO] [stdout]     |
[INFO] [stdout]     = help: bind the `Vec<u8>` to a variable such that it outlives the pointer returned by `as_ptr`
[INFO] [stdout]     = note: a dangling pointer is safe, but dereferencing one is undefined behavior
[INFO] [stdout]     = note: returning a pointer to a local variable will always result in a dangling pointer
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates a dangling pointer because temporary `Vec<u8>` is dropped at end of statement
[INFO] [stdout]    --> src/profiling/mallctl.rs:163:68
[INFO] [stdout]     |
[INFO] [stdout] 163 |             Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(),
[INFO] [stdout]     |                        ------------------------------------------- ^^^^^^ pointer created here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this `Vec<u8>` is dropped at end of statement
[INFO] [stdout]     |
[INFO] [stdout]     = help: bind the `Vec<u8>` to a variable such that it outlives the pointer returned by `as_ptr`
[INFO] [stdout]     = note: a dangling pointer is safe, but dereferencing one is undefined behavior
[INFO] [stdout]     = note: returning a pointer to a local variable will always result in a dangling pointer
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f", kill_on_drop: false }`
[INFO] [stdout] b67c0c28f113463b616bb2470d2098eab6359e3896b1f188c074098542cb3e2f
