[INFO] fetching crate pakr-managedrawfd 1.0.0...
[INFO] testing pakr-managedrawfd-1.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pakr-managedrawfd 1.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate pakr-managedrawfd 1.0.0
[INFO] finished tweaking crates.io crate pakr-managedrawfd 1.0.0
[INFO] tweaked toml for crates.io crate pakr-managedrawfd 1.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pakr-managedrawfd 1.0.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e284a4a302f0817659e96017e4d8d4f5d4197c9dfb250355e7c0faa0f56544f7
[INFO] running `Command { std: "docker" "start" "-a" "e284a4a302f0817659e96017e4d8d4f5d4197c9dfb250355e7c0faa0f56544f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e284a4a302f0817659e96017e4d8d4f5d4197c9dfb250355e7c0faa0f56544f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e284a4a302f0817659e96017e4d8d4f5d4197c9dfb250355e7c0faa0f56544f7", kill_on_drop: false }`
[INFO] [stdout] e284a4a302f0817659e96017e4d8d4f5d4197c9dfb250355e7c0faa0f56544f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3472b6ed0dce267e562f946b0faa58f7cc7b1015c9b35bb752af404db9fb8dff
[INFO] running `Command { std: "docker" "start" "-a" "3472b6ed0dce267e562f946b0faa58f7cc7b1015c9b35bb752af404db9fb8dff", kill_on_drop: false }`
[INFO] [stderr]    Compiling pakr-managedrawfd v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:166:24
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 panic!(io::Error::last_os_error());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 panic!("{}", io::Error::last_os_error());
[INFO] [stdout]     |                        +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 166 -                 panic!(io::Error::last_os_error());
[INFO] [stdout] 166 +                 std::panic::panic_any(io::Error::last_os_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "3472b6ed0dce267e562f946b0faa58f7cc7b1015c9b35bb752af404db9fb8dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3472b6ed0dce267e562f946b0faa58f7cc7b1015c9b35bb752af404db9fb8dff", kill_on_drop: false }`
[INFO] [stdout] 3472b6ed0dce267e562f946b0faa58f7cc7b1015c9b35bb752af404db9fb8dff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7111a5646769fe1db0407d0adad9f9d252dfa8d42c52b4dd2b1bf69fc250b09
[INFO] running `Command { std: "docker" "start" "-a" "d7111a5646769fe1db0407d0adad9f9d252dfa8d42c52b4dd2b1bf69fc250b09", kill_on_drop: false }`
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:166:24
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 panic!(io::Error::last_os_error());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 panic!("{}", io::Error::last_os_error());
[INFO] [stdout]     |                        +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 166 -                 panic!(io::Error::last_os_error());
[INFO] [stdout] 166 +                 std::panic::panic_any(io::Error::last_os_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pakr-managedrawfd v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:166:24
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 panic!(io::Error::last_os_error());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 panic!("{}", io::Error::last_os_error());
[INFO] [stdout]     |                        +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 166 -                 panic!(io::Error::last_os_error());
[INFO] [stdout] 166 +                 std::panic::panic_any(io::Error::last_os_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "d7111a5646769fe1db0407d0adad9f9d252dfa8d42c52b4dd2b1bf69fc250b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7111a5646769fe1db0407d0adad9f9d252dfa8d42c52b4dd2b1bf69fc250b09", kill_on_drop: false }`
[INFO] [stdout] d7111a5646769fe1db0407d0adad9f9d252dfa8d42c52b4dd2b1bf69fc250b09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] de98f5b8d46735f8a7fcde20ee14b51f720484a9987a7016fd909d579e9d6f30
[INFO] running `Command { std: "docker" "start" "-a" "de98f5b8d46735f8a7fcde20ee14b51f720484a9987a7016fd909d579e9d6f30", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:166:24
[INFO] [stderr]     |
[INFO] [stderr] 166 |                 panic!(io::Error::last_os_error());
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 166 |                 panic!("{}", io::Error::last_os_error());
[INFO] [stderr]     |                        +++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 166 -                 panic!(io::Error::last_os_error());
[INFO] [stderr] 166 +                 std::panic::panic_any(io::Error::last_os_error());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `pakr-managedrawfd` (lib) generated 1 warning (run `cargo fix --lib -p pakr-managedrawfd` to apply 1 suggestion)
[INFO] [stderr] warning: `pakr-managedrawfd` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pakr_managedrawfd-a8efa5d40943cad9)
[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] [stderr]    Doc-tests pakr_managedrawfd
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - ManagedFD::dup (line 59) ... ignored
[INFO] [stdout] test src/lib.rs - SharedFD (line 185) ... ok
[INFO] [stdout] test src/lib.rs - DuplicatingFD (line 112) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "de98f5b8d46735f8a7fcde20ee14b51f720484a9987a7016fd909d579e9d6f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de98f5b8d46735f8a7fcde20ee14b51f720484a9987a7016fd909d579e9d6f30", kill_on_drop: false }`
[INFO] [stdout] de98f5b8d46735f8a7fcde20ee14b51f720484a9987a7016fd909d579e9d6f30
