[INFO] cloning repository https://github.com/sapphire-alysa-star/Rust-Pals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sapphire-alysa-star/Rust-Pals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsapphire-alysa-star%2FRust-Pals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsapphire-alysa-star%2FRust-Pals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3bd8036e0241374f549b658f6d1590ed79b5bcf
[INFO] checking sapphire-alysa-star/Rust-Pals against try#ac4c3613be2acd5395b65d85e5657b81e3c982f0 for pr-154585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsapphire-alysa-star%2FRust-Pals" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sapphire-alysa-star/Rust-Pals
[INFO] finished tweaking git repo https://github.com/sapphire-alysa-star/Rust-Pals
[INFO] tweaked toml for git repo https://github.com/sapphire-alysa-star/Rust-Pals written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sapphire-alysa-star/Rust-Pals on toolchain ac4c3613be2acd5395b65d85e5657b81e3c982f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sapphire-alysa-star/Rust-Pals 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" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25910f18e94215755adb59c7fc5ca9b266573326317e1ceb007cad9e6ed4aaee
[INFO] running `Command { std: "docker" "start" "-a" "25910f18e94215755adb59c7fc5ca9b266573326317e1ceb007cad9e6ed4aaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25910f18e94215755adb59c7fc5ca9b266573326317e1ceb007cad9e6ed4aaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25910f18e94215755adb59c7fc5ca9b266573326317e1ceb007cad9e6ed4aaee", kill_on_drop: false }`
[INFO] [stdout] 25910f18e94215755adb59c7fc5ca9b266573326317e1ceb007cad9e6ed4aaee
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6083dea09635c521a899f0f989ffe5dc697da53c6586c7ffcb3ddc4a6e661784
[INFO] running `Command { std: "docker" "start" "-a" "6083dea09635c521a899f0f989ffe5dc697da53c6586c7ffcb3ddc4a6e661784", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function returns a dangling pointer to dropped local variable `x`
[INFO] [stdout]  --> src/bin/23-dangle.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn dangle (val: i32) -> *const i32 {
[INFO] [stdout]   |                         ---------- return type is `*const i32`
[INFO] [stdout] 2 |     let x: i32 = val;
[INFO] [stdout]   |         - local variable `x` is dropped at the end of the function
[INFO] [stdout] 3 |
[INFO] [stdout] 4 |     let p: *const i32 = &x;
[INFO] [stdout]   |                         -- dangling pointer created here
[INFO] [stdout] ...
[INFO] [stdout] 8 |     p
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: a dangling pointer is safe, but dereferencing one is undefined behavior
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]   = note: `#[warn(dangling_pointers_from_locals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function returns a dangling pointer to dropped local variable `x`
[INFO] [stdout]  --> src/bin/23-dangle.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn dangle (val: i32) -> *const i32 {
[INFO] [stdout]   |                         ---------- return type is `*const i32`
[INFO] [stdout] 2 |     let x: i32 = val;
[INFO] [stdout]   |         - local variable `x` is dropped at the end of the function
[INFO] [stdout] 3 |
[INFO] [stdout] 4 |     let p: *const i32 = &x;
[INFO] [stdout]   |                         -- dangling pointer created here
[INFO] [stdout] ...
[INFO] [stdout] 8 |     p
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: a dangling pointer is safe, but dereferencing one is undefined behavior
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]   = note: `#[warn(dangling_pointers_from_locals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `Command { std: "docker" "inspect" "6083dea09635c521a899f0f989ffe5dc697da53c6586c7ffcb3ddc4a6e661784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6083dea09635c521a899f0f989ffe5dc697da53c6586c7ffcb3ddc4a6e661784", kill_on_drop: false }`
[INFO] [stdout] 6083dea09635c521a899f0f989ffe5dc697da53c6586c7ffcb3ddc4a6e661784