[INFO] fetching crate vgrs 0.1.0...
[INFO] testing vgrs-0.1.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate vgrs 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate vgrs 0.1.0
[INFO] finished tweaking crates.io crate vgrs 0.1.0
[INFO] tweaked toml for crates.io crate vgrs 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vgrs 0.1.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1629ef0e2ed43333b42e36253dc7fa9fab1548327e16d0cb01426f48268882b3
[INFO] running `Command { std: "docker" "start" "-a" "1629ef0e2ed43333b42e36253dc7fa9fab1548327e16d0cb01426f48268882b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1629ef0e2ed43333b42e36253dc7fa9fab1548327e16d0cb01426f48268882b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1629ef0e2ed43333b42e36253dc7fa9fab1548327e16d0cb01426f48268882b3", kill_on_drop: false }`
[INFO] [stdout] 1629ef0e2ed43333b42e36253dc7fa9fab1548327e16d0cb01426f48268882b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ca7727428e54f7e86abdbf722c55d25e3bc0c9fc6f48865d04c42b29b81b3f6
[INFO] running `Command { std: "docker" "start" "-a" "0ca7727428e54f7e86abdbf722c55d25e3bc0c9fc6f48865d04c42b29b81b3f6", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling vgrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/arch/x86_64-linux-macos.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     asm!("
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout]  5 + use std::arch::asm;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown lint: `unstable`
[INFO] [stdout]   --> src/lib.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![allow(unstable)]
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unknown_lints)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | extern crate libc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | use libc::c_uint;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the feature `asm` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![feature(asm)]
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(stable_features)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]    --> src/lib.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |     use libc::c_uint;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]     = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `LeakCount: Clone` is not satisfied
[INFO] [stdout]    --> src/lib.rs:274:16
[INFO] [stdout]     |
[INFO] [stdout] 273 |     #[derive(Copy)]
[INFO] [stdout]     |              ---- in this derive macro expansion
[INFO] [stdout] 274 |     pub struct LeakCount {
[INFO] [stdout]     |                ^^^^^^^^^ the trait `Clone` is not implemented for `LeakCount`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Copy`
[INFO] [stdout]    --> /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/marker.rs:454:0
[INFO] [stdout] help: consider annotating `LeakCount` with `#[derive(Clone)]`
[INFO] [stdout]     |
[INFO] [stdout] 274 +     #[derive(Clone)]
[INFO] [stdout] 275 |     pub struct LeakCount {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `from_slice` found for struct `CString` in the current scope
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |           let c_str = CString::from_slice($a1.as_bytes());
[INFO] [stdout]     |                                ^^^^^^^^^^ associated function or constant not found in `CString`
[INFO] [stdout] ...
[INFO] [stdout] 193 | /     wrap_str!(VG_USERREQ__GDB_MONITOR_COMMAND
[INFO] [stdout] 194 | |         => fn monitor_command(cmd: &str) -> ());
[INFO] [stdout]     | |_______________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `CString` consider using one of the following associated functions:
[INFO] [stdout]       CString::new
[INFO] [stdout]       CString::from_vec_unchecked
[INFO] [stdout]       CString::from_raw
[INFO] [stdout]       CString::from_vec_with_nul_unchecked
[INFO] [stdout]       CString::from_vec_with_nul
[INFO] [stdout]    --> /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/ffi/c_str.rs:257:4
[INFO] [stdout]     = note: this error originates in the macro `wrap_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `from_slice` found for struct `CString` in the current scope
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |           let c_str = CString::from_slice($a1.as_bytes());
[INFO] [stdout]     |                                ^^^^^^^^^^ associated function or constant not found in `CString`
[INFO] [stdout] ...
[INFO] [stdout] 322 | /     wrap_str!(VG_USERREQ__DUMP_STATS_AT
[INFO] [stdout] 323 | |         => fn dump_stats_at(pos: &str) -> ());
[INFO] [stdout]     | |_____________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `CString` consider using one of the following associated functions:
[INFO] [stdout]       CString::new
[INFO] [stdout]       CString::from_vec_unchecked
[INFO] [stdout]       CString::from_raw
[INFO] [stdout]       CString::from_vec_with_nul_unchecked
[INFO] [stdout]       CString::from_vec_with_nul
[INFO] [stdout]    --> /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/ffi/c_str.rs:257:4
[INFO] [stdout]     = note: this error originates in the macro `wrap_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `from_slice` found for struct `CString` in the current scope
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |           let c_str = CString::from_slice($a1.as_bytes());
[INFO] [stdout]     |                                ^^^^^^^^^^ associated function or constant not found in `CString`
[INFO] [stdout] ...
[INFO] [stdout] 423 | /     wrap_str!(VG_USERREQ__DRD_SET_THREAD_NAME
[INFO] [stdout] 424 | |         => fn annotate_thread_name(name: &str) -> ());
[INFO] [stdout]     | |_____________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `CString` consider using one of the following associated functions:
[INFO] [stdout]       CString::new
[INFO] [stdout]       CString::from_vec_unchecked
[INFO] [stdout]       CString::from_raw
[INFO] [stdout]       CString::from_vec_with_nul_unchecked
[INFO] [stdout]       CString::from_vec_with_nul
[INFO] [stdout]    --> /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/ffi/c_str.rs:257:4
[INFO] [stdout]     = note: this error originates in the macro `wrap_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vgrs` (lib) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "0ca7727428e54f7e86abdbf722c55d25e3bc0c9fc6f48865d04c42b29b81b3f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca7727428e54f7e86abdbf722c55d25e3bc0c9fc6f48865d04c42b29b81b3f6", kill_on_drop: false }`
[INFO] [stdout] 0ca7727428e54f7e86abdbf722c55d25e3bc0c9fc6f48865d04c42b29b81b3f6
