[INFO] fetching crate ngnk 0.2.3... [INFO] checking ngnk-0.2.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate ngnk 0.2.3 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate ngnk 0.2.3 [INFO] finished tweaking crates.io crate ngnk 0.2.3 [INFO] tweaked toml for crates.io crate ngnk 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ngnk 0.2.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 54 packages to latest compatible versions [INFO] [stderr] Adding bindgen v0.65.1 (available: v0.72.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ced7828b283612999b0ff0a680371f98f0e56f17974b536e91307b9fcc423c6 [INFO] running `Command { std: "docker" "start" "-a" "6ced7828b283612999b0ff0a680371f98f0e56f17974b536e91307b9fcc423c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ced7828b283612999b0ff0a680371f98f0e56f17974b536e91307b9fcc423c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ced7828b283612999b0ff0a680371f98f0e56f17974b536e91307b9fcc423c6", kill_on_drop: false }` [INFO] [stdout] 6ced7828b283612999b0ff0a680371f98f0e56f17974b536e91307b9fcc423c6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5b6f43575869546f915529b7e3df982cf95f9ead260277cd05ef1ac61d7ca633 [INFO] running `Command { std: "docker" "start" "-a" "5b6f43575869546f915529b7e3df982cf95f9ead260277cd05ef1ac61d7ca633", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling glob v0.3.2 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling prettyplease v0.2.35 [INFO] [stderr] Compiling bitflags v2.9.1 [INFO] [stderr] Compiling memchr v2.7.5 [INFO] [stderr] Compiling minimal-lexical v0.2.1 [INFO] [stderr] Compiling regex-syntax v0.8.5 [INFO] [stderr] Compiling cfg-if v1.0.1 [INFO] [stderr] Compiling home v0.5.11 [INFO] [stderr] Compiling bindgen v0.65.1 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling libloading v0.8.8 [INFO] [stderr] Compiling clang-sys v1.8.1 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.104 [INFO] [stderr] Compiling regex-automata v0.4.9 [INFO] [stderr] Compiling cexpr v0.6.0 [INFO] [stderr] Compiling which v4.4.2 [INFO] [stderr] Compiling regex v1.11.1 [INFO] [stderr] Compiling ngnk v0.2.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec` will be dropped [INFO] [stdout] --> src/lib.rs:32:34 [INFO] [stdout] | [INFO] [stdout] 32 | unsafe{ let b:*mut i8=vec![].as_mut_ptr();raw::CK(b,a); [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_mut_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_mut_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/lib.rs:32:34 [INFO] [stdout] | [INFO] [stdout] 32 | unsafe{ let b:*mut i8=vec![].as_mut_ptr();raw::CK(b,a); [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_mut_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_mut_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 21.65s [INFO] running `Command { std: "docker" "inspect" "5b6f43575869546f915529b7e3df982cf95f9ead260277cd05ef1ac61d7ca633", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b6f43575869546f915529b7e3df982cf95f9ead260277cd05ef1ac61d7ca633", kill_on_drop: false }` [INFO] [stdout] 5b6f43575869546f915529b7e3df982cf95f9ead260277cd05ef1ac61d7ca633