[INFO] fetching crate macos-profiler 0.2.1... [INFO] checking macos-profiler-0.2.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate macos-profiler 0.2.1 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate macos-profiler 0.2.1 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 macos-profiler 0.2.1 [INFO] finished tweaking crates.io crate macos-profiler 0.2.1 [INFO] tweaked toml for crates.io crate macos-profiler 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 95 packages to latest compatible versions [INFO] [stderr] Adding aho-corasick v0.6.10 (available: v1.1.3) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding bytes v0.4.12 (available: v1.7.2) [INFO] [stderr] Adding cfg-if v0.1.10 (available: v1.0.0) [INFO] [stderr] Adding clap v2.34.0 (available: v4.5.18) [INFO] [stderr] Adding command-macros v0.1.11 (available: v0.2.9) [INFO] [stderr] Adding env_logger v0.5.13 (available: v0.11.5) [INFO] [stderr] Adding glob v0.2.11 (available: v0.3.1) [INFO] [stderr] Adding heck v0.3.3 (available: v0.5.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (available: v0.4.0) [INFO] [stderr] Adding humantime v1.3.0 (available: v2.1.0) [INFO] [stderr] Adding nix v0.10.0 (available: v0.29.0) [INFO] [stderr] Adding proc-macro2 v0.4.30 (available: v1.0.86) [INFO] [stderr] Adding quick-error v1.2.3 (available: v2.0.1) [INFO] [stderr] Adding quicli v0.2.0 (available: v0.4.0) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.37) [INFO] [stderr] Adding rayon v0.9.0 (available: v1.10.0) [INFO] [stderr] Adding regex v0.2.11 (available: v1.10.6) [INFO] [stderr] Adding regex-syntax v0.5.6 (available: v0.8.4) [INFO] [stderr] Adding rustc_version v0.1.7 (available: v0.4.1) [INFO] [stderr] Adding semver v0.1.20 (available: v1.0.23) [INFO] [stderr] Adding shlex v0.1.1 (available: v1.3.0) [INFO] [stderr] Adding strsim v0.8.0 (available: v0.11.1) [INFO] [stderr] Adding structopt v0.2.18 (available: v0.3.26) [INFO] [stderr] Adding structopt-derive v0.2.18 (available: v0.4.18) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.79) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [INFO] [stderr] Adding synstructure v0.12.6 (available: v0.13.1) [INFO] [stderr] Adding textwrap v0.11.0 (available: v0.16.1) [INFO] [stderr] Adding thread_local v0.3.6 (available: v1.1.8) [INFO] [stderr] Adding toml v0.4.10 (available: v0.8.19) [INFO] [stderr] Adding ucd-util v0.1.10 (available: v0.2.1) [INFO] [stderr] Adding unicode-width v0.1.14 (available: v0.2.0) [INFO] [stderr] Adding unicode-xid v0.1.0 (available: v0.2.6) [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1ae334e9912538e082473bce9ca3ca7ca97b059927980dc6bb8e5b1f2fc9511f [INFO] running `Command { std: "docker" "start" "-a" "1ae334e9912538e082473bce9ca3ca7ca97b059927980dc6bb8e5b1f2fc9511f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ae334e9912538e082473bce9ca3ca7ca97b059927980dc6bb8e5b1f2fc9511f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ae334e9912538e082473bce9ca3ca7ca97b059927980dc6bb8e5b1f2fc9511f", kill_on_drop: false }` [INFO] [stdout] 1ae334e9912538e082473bce9ca3ca7ca97b059927980dc6bb8e5b1f2fc9511f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0f871e2a12a7b5a8be5d171129532a55eb0dab802e0c8d9134ca410a278b6505 [INFO] running `Command { std: "docker" "start" "-a" "0f871e2a12a7b5a8be5d171129532a55eb0dab802e0c8d9134ca410a278b6505", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking gimli v0.31.0 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling cfg_aliases v0.2.1 [INFO] [stderr] Checking adler2 v2.0.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking object v0.36.4 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking miniz_oxide v0.8.0 [INFO] [stderr] Checking rustc-demangle v0.1.24 [INFO] [stderr] Compiling nix v0.29.0 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling nix v0.10.0 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking ucd-util v0.1.10 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling command-macros v0.1.11 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking utf8-ranges v1.0.5 [INFO] [stderr] Checking serde_json v1.0.128 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking shlex v0.1.1 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking rayon v0.9.0 [INFO] [stderr] Checking addr2line v0.24.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking backtrace v0.3.74 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking ctrlc v3.4.5 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking quicli v0.2.0 [INFO] [stderr] Checking macos-profiler v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/dtrace.rs:33:29 [INFO] [stdout] | [INFO] [stdout] 33 | ... self.buffer.split_off(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 33 | let _ = self.buffer.split_off(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/dtrace.rs:33:29 [INFO] [stdout] | [INFO] [stdout] 33 | ... self.buffer.split_off(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 33 | let _ = self.buffer.split_off(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/dtrace.rs:39:21 [INFO] [stdout] | [INFO] [stdout] 39 | self.buffer.split_off(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 39 | let _ = self.buffer.split_off(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/dtrace.rs:39:21 [INFO] [stdout] | [INFO] [stdout] 39 | self.buffer.split_off(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 39 | let _ = self.buffer.split_off(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/dtrace.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | self.buffer.split_off(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 50 | let _ = self.buffer.split_off(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/dtrace.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | self.buffer.split_off(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 50 | let _ = self.buffer.split_off(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.04s [INFO] running `Command { std: "docker" "inspect" "0f871e2a12a7b5a8be5d171129532a55eb0dab802e0c8d9134ca410a278b6505", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f871e2a12a7b5a8be5d171129532a55eb0dab802e0c8d9134ca410a278b6505", kill_on_drop: false }` [INFO] [stdout] 0f871e2a12a7b5a8be5d171129532a55eb0dab802e0c8d9134ca410a278b6505