[INFO] fetching crate microchassis 0.0.6... [INFO] testing microchassis-0.0.6 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate microchassis 0.0.6 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate microchassis 0.0.6 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c9986a800f4867f2c3869cd6396d431ff6711a973f8d2997a5d673b512b30923 [INFO] running `Command { std: "docker" "start" "-a" "c9986a800f4867f2c3869cd6396d431ff6711a973f8d2997a5d673b512b30923", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c9986a800f4867f2c3869cd6396d431ff6711a973f8d2997a5d673b512b30923", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9986a800f4867f2c3869cd6396d431ff6711a973f8d2997a5d673b512b30923", kill_on_drop: false }` [INFO] [stdout] c9986a800f4867f2c3869cd6396d431ff6711a973f8d2997a5d673b512b30923 [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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a13431d96c5bc08ddc84916c0317641720b5369d16de6750a1eb1e6d6eb44dd7 [INFO] running `Command { std: "docker" "start" "-a" "a13431d96c5bc08ddc84916c0317641720b5369d16de6750a1eb1e6d6eb44dd7", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.13 [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling rustix v0.38.37 [INFO] [stderr] Compiling gimli v0.31.0 [INFO] [stderr] Compiling cc v1.1.21 [INFO] [stderr] Compiling object v0.36.4 [INFO] [stderr] Compiling tracing-core v0.1.32 [INFO] [stderr] Compiling miniz_oxide v0.8.0 [INFO] [stderr] Compiling bytes v1.7.2 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling 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] Compiling tempfile v3.12.0 [INFO] [stderr] Compiling addr2line v0.24.1 [INFO] [stderr] Compiling backtrace v0.3.74 [INFO] [stderr] Compiling thiserror-impl v1.0.64 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling tracing v0.1.40 [INFO] [stderr] Compiling thiserror v1.0.64 [INFO] [stderr] Compiling tikv-jemalloc-ctl v0.6.0 [INFO] [stderr] Compiling tikv-jemallocator v0.6.0 [INFO] [stderr] Compiling microchassis v0.0.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: this creates a dangling pointer because temporary `Vec` 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` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `Vec` 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 [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 44.52s [INFO] running `Command { std: "docker" "inspect" "a13431d96c5bc08ddc84916c0317641720b5369d16de6750a1eb1e6d6eb44dd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a13431d96c5bc08ddc84916c0317641720b5369d16de6750a1eb1e6d6eb44dd7", kill_on_drop: false }` [INFO] [stdout] a13431d96c5bc08ddc84916c0317641720b5369d16de6750a1eb1e6d6eb44dd7 [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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aa84d3ba6ae270a2ddd3d72d546da40f9e94bf85c66ed70fad0dd23e7d4a6255 [INFO] running `Command { std: "docker" "start" "-a" "aa84d3ba6ae270a2ddd3d72d546da40f9e94bf85c66ed70fad0dd23e7d4a6255", kill_on_drop: false }` [INFO] [stdout] warning: this creates a dangling pointer because temporary `Vec` 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` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `Vec` 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 [INFO] [stdout] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling microchassis v0.0.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: this creates a dangling pointer because temporary `Vec` 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` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `Vec` 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 [INFO] [stdout] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s [INFO] running `Command { std: "docker" "inspect" "aa84d3ba6ae270a2ddd3d72d546da40f9e94bf85c66ed70fad0dd23e7d4a6255", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa84d3ba6ae270a2ddd3d72d546da40f9e94bf85c66ed70fad0dd23e7d4a6255", kill_on_drop: false }` [INFO] [stdout] aa84d3ba6ae270a2ddd3d72d546da40f9e94bf85c66ed70fad0dd23e7d4a6255 [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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a078e072ba2423199968767aa0bf4242d348a3be01df9f00874fd2792d3c742e [INFO] running `Command { std: "docker" "start" "-a" "a078e072ba2423199968767aa0bf4242d348a3be01df9f00874fd2792d3c742e", kill_on_drop: false }` [INFO] [stderr] warning: this creates a dangling pointer because temporary `Vec` is dropped at end of statement [INFO] [stderr] --> src/profiling/mallctl.rs:163:68 [INFO] [stderr] | [INFO] [stderr] 163 | Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(), [INFO] [stderr] | ------------------------------------------- ^^^^^^ pointer created here [INFO] [stderr] | | [INFO] [stderr] | this `Vec` is dropped at end of statement [INFO] [stderr] | [INFO] [stderr] = help: bind the `Vec` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stderr] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stderr] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `microchassis` (lib) generated 1 warning [INFO] [stderr] warning: `microchassis` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/microchassis-16e0a638275345e4) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test profiling::mallctl::tests::test_prof_active ... ignored [INFO] [stdout] test profiling::mallctl::tests::test_prof_reset ... ignored [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] Doc-tests microchassis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a078e072ba2423199968767aa0bf4242d348a3be01df9f00874fd2792d3c742e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a078e072ba2423199968767aa0bf4242d348a3be01df9f00874fd2792d3c742e", kill_on_drop: false }` [INFO] [stdout] a078e072ba2423199968767aa0bf4242d348a3be01df9f00874fd2792d3c742e