[INFO] fetching crate ptrace-syscalls 0.0.0-experimental.2...
[INFO] checking ptrace-syscalls-0.0.0-experimental.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate ptrace-syscalls 0.0.0-experimental.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate ptrace-syscalls 0.0.0-experimental.2 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ptrace-syscalls 0.0.0-experimental.2
[INFO] finished tweaking crates.io crate ptrace-syscalls 0.0.0-experimental.2
[INFO] tweaked toml for crates.io crate ptrace-syscalls 0.0.0-experimental.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate ptrace-syscalls 0.0.0-experimental.2 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] befd08383e143ff1fd9d26740467e7bf9a41da02b6429f5d2e94bedd24ce2871
[INFO] running `Command { std: "docker" "start" "-a" "befd08383e143ff1fd9d26740467e7bf9a41da02b6429f5d2e94bedd24ce2871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "befd08383e143ff1fd9d26740467e7bf9a41da02b6429f5d2e94bedd24ce2871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "befd08383e143ff1fd9d26740467e7bf9a41da02b6429f5d2e94bedd24ce2871", kill_on_drop: false }`
[INFO] [stdout] befd08383e143ff1fd9d26740467e7bf9a41da02b6429f5d2e94bedd24ce2871
[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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cf0194646ac2eb209bc09b6383789582c724516b2a645e40c34d6cc4b38f343
[INFO] running `Command { std: "docker" "start" "-a" "8cf0194646ac2eb209bc09b6383789582c724516b2a645e40c34d6cc4b38f343", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]    Compiling erasable v1.2.1
[INFO] [stderr]    Compiling slice-dst v1.5.1
[INFO] [stderr]    Compiling syn v2.0.67
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling enumflags2_derive v0.7.10
[INFO] [stderr]     Checking enumflags2 v0.7.10
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling ptrace-syscalls-macros v0.0.0-experimental.2
[INFO] [stderr]     Checking ptrace-syscalls v0.0.0-experimental.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `read_lossy_string` is never used
[INFO] [stdout]    --> src/inspect.rs:345:4
[INFO] [stdout]     |
[INFO] [stdout] 345 | fn read_lossy_string(pid: Pid, address: AddressType) -> InspectResult<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lossy_string` is never used
[INFO] [stdout]    --> src/inspect.rs:345:4
[INFO] [stdout]     |
[INFO] [stdout] 345 | fn read_lossy_string(pid: Pid, address: AddressType) -> InspectResult<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pid`
[INFO] [stdout]   --> examples/rstrace.rs:92:31
[INFO] [stdout]    |
[INFO] [stdout] 92 |       WaitStatus::PtraceEvent(pid, sig, evt) => match evt {
[INFO] [stdout]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> examples/rstrace.rs:92:36
[INFO] [stdout]    |
[INFO] [stdout] 92 |       WaitStatus::PtraceEvent(pid, sig, evt) => match evt {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.29s
[INFO] running `Command { std: "docker" "inspect" "8cf0194646ac2eb209bc09b6383789582c724516b2a645e40c34d6cc4b38f343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf0194646ac2eb209bc09b6383789582c724516b2a645e40c34d6cc4b38f343", kill_on_drop: false }`
[INFO] [stdout] 8cf0194646ac2eb209bc09b6383789582c724516b2a645e40c34d6cc4b38f343