[INFO] fetching crate microchassis 0.0.6... [INFO] checking microchassis-0.0.6 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1 [INFO] extracting crate microchassis 0.0.6 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate microchassis 0.0.6 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tikv-jemalloc-ctl v0.6.0 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 98bb2648d503f3a002942a088664fb12e0a7e4b45d866dc34154ed57f85c311e [INFO] running `Command { std: "docker" "start" "-a" "98bb2648d503f3a002942a088664fb12e0a7e4b45d866dc34154ed57f85c311e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "98bb2648d503f3a002942a088664fb12e0a7e4b45d866dc34154ed57f85c311e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98bb2648d503f3a002942a088664fb12e0a7e4b45d866dc34154ed57f85c311e", kill_on_drop: false }` [INFO] [stdout] 98bb2648d503f3a002942a088664fb12e0a7e4b45d866dc34154ed57f85c311e [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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2953cea0b5c0352bdf87413cbee58e097f262358547201816d70909b9ebfb4a9 [INFO] running `Command { std: "docker" "start" "-a" "2953cea0b5c0352bdf87413cbee58e097f262358547201816d70909b9ebfb4a9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling thiserror v1.0.64 [INFO] [stderr] Compiling tikv-jemalloc-sys v0.6.0+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7 [INFO] [stderr] Checking tempfile v3.12.0 [INFO] [stderr] Compiling thiserror-impl v1.0.64 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking backtrace v0.3.74 [INFO] [stderr] Checking tikv-jemalloc-ctl v0.6.0 [INFO] [stderr] Checking tikv-jemallocator v0.6.0 [INFO] [stderr] Checking microchassis v0.0.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec` will be dropped [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] | ------------------------------------------- ^^^^^^ this pointer will immediately be invalid [INFO] [stdout] | | [INFO] [stdout] | this `Vec` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `Vec` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: you must make sure that the variable you bind the `Vec` to lives at least as long as the pointer returned by the call to `as_ptr` [INFO] [stdout] = help: in particular, if this pointer is returned from the current function, binding the `Vec` inside the function will not suffice [INFO] [stdout] = help: for more information, see [INFO] [stdout] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec` will be dropped [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] | ------------------------------------------- ^^^^^^ this pointer will immediately be invalid [INFO] [stdout] | | [INFO] [stdout] | this `Vec` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `Vec` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: you must make sure that the variable you bind the `Vec` to lives at least as long as the pointer returned by the call to `as_ptr` [INFO] [stdout] = help: in particular, if this pointer is returned from the current function, binding the `Vec` inside the function will not suffice [INFO] [stdout] = help: for more information, see [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 59.21s [INFO] running `Command { std: "docker" "inspect" "2953cea0b5c0352bdf87413cbee58e097f262358547201816d70909b9ebfb4a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2953cea0b5c0352bdf87413cbee58e097f262358547201816d70909b9ebfb4a9", kill_on_drop: false }` [INFO] [stdout] 2953cea0b5c0352bdf87413cbee58e097f262358547201816d70909b9ebfb4a9