[INFO] fetching crate macos-profiler 0.2.1... [INFO] testing macos-profiler-0.2.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237 [INFO] extracting crate macos-profiler 0.2.1 into /workspace/builds/worker-0-tc1/source [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-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate macos-profiler 0.2.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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 97 packages to latest compatible versions [INFO] [stderr] Adding clap v2.34.0 (available: v4.5.47) [INFO] [stderr] Adding command-macros v0.1.11 (available: v0.2.9) [INFO] [stderr] Adding nix v0.10.0 (available: v0.30.1) [INFO] [stderr] Adding quicli v0.2.0 (available: v0.4.0) [INFO] [stderr] Adding regex v0.2.11 (available: v1.11.2) [INFO] [stderr] Adding shlex v0.1.1 (available: v1.3.0) [INFO] [stderr] Adding toml v0.4.10 (available: v0.9.5) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded utf8-ranges v1.0.5 [INFO] [stderr] Downloaded ctrlc v3.5.0 [INFO] [stderr] Downloaded semver v0.1.20 [INFO] [stderr] Downloaded aho-corasick v0.6.10 [INFO] [stderr] Downloaded ucd-util v0.1.10 [INFO] [stderr] Downloaded rustc_version v0.1.7 [INFO] [stderr] Downloaded regex v0.2.11 [INFO] [stderr] Downloaded quicli v0.2.0 [INFO] [stderr] Downloaded nix v0.10.0 [INFO] [stderr] Downloaded rayon v0.9.0 [INFO] [stderr] Downloaded regex-syntax v0.5.6 [INFO] [stderr] Downloaded command-macros v0.1.11 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6da2e897ca13e16854acbcbe5910bd719d77793aec60ce5c8cf520b4be0e6709 [INFO] running `Command { std: "docker" "start" "-a" "6da2e897ca13e16854acbcbe5910bd719d77793aec60ce5c8cf520b4be0e6709", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6da2e897ca13e16854acbcbe5910bd719d77793aec60ce5c8cf520b4be0e6709", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6da2e897ca13e16854acbcbe5910bd719d77793aec60ce5c8cf520b4be0e6709", kill_on_drop: false }` [INFO] [stdout] 6da2e897ca13e16854acbcbe5910bd719d77793aec60ce5c8cf520b4be0e6709 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76724f78c7d6a6524da95745f9e9da1dff85e6cd676fe003f04bc4a543717134 [INFO] running `Command { std: "docker" "start" "-a" "76724f78c7d6a6524da95745f9e9da1dff85e6cd676fe003f04bc4a543717134", kill_on_drop: false }` [INFO] [stderr] Compiling object v0.36.7 [INFO] [stderr] Compiling gimli v0.31.1 [INFO] [stderr] Compiling rayon-core v1.13.0 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling unicode-width v0.1.14 [INFO] [stderr] Compiling nix v0.30.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling miniz_oxide v0.8.9 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling rustc-demangle v0.1.26 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling nix v0.10.0 [INFO] [stderr] Compiling termcolor v1.4.1 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling log v0.4.28 [INFO] [stderr] Compiling bitflags v2.9.4 [INFO] [stderr] Compiling command-macros v0.1.11 [INFO] [stderr] Compiling ucd-util v0.1.10 [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling rayon v0.9.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling utf8-ranges v1.0.5 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling serde_json v1.0.143 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling shlex v0.1.1 [INFO] [stderr] Compiling ctrlc v3.5.0 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling structopt v0.2.18 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling addr2line v0.24.2 [INFO] [stderr] Compiling backtrace v0.3.75 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling quicli v0.2.0 [INFO] [stderr] Compiling 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)]` (part of `#[warn(unused)]`) 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: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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.79s [INFO] running `Command { std: "docker" "inspect" "76724f78c7d6a6524da95745f9e9da1dff85e6cd676fe003f04bc4a543717134", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76724f78c7d6a6524da95745f9e9da1dff85e6cd676fe003f04bc4a543717134", kill_on_drop: false }` [INFO] [stdout] 76724f78c7d6a6524da95745f9e9da1dff85e6cd676fe003f04bc4a543717134 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 87beabb51072e3b6edd4410da8b317cf6b431625d6571cd2edf23aca1d53211f [INFO] running `Command { std: "docker" "start" "-a" "87beabb51072e3b6edd4410da8b317cf6b431625d6571cd2edf23aca1d53211f", kill_on_drop: false }` [INFO] [stderr] Compiling 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)]` (part of `#[warn(unused)]`) 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: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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `Command { std: "docker" "inspect" "87beabb51072e3b6edd4410da8b317cf6b431625d6571cd2edf23aca1d53211f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87beabb51072e3b6edd4410da8b317cf6b431625d6571cd2edf23aca1d53211f", kill_on_drop: false }` [INFO] [stdout] 87beabb51072e3b6edd4410da8b317cf6b431625d6571cd2edf23aca1d53211f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a6bd84de9e3f3c918f99de26da99335e1dc37e8b1dec79f5a3ae0294b84e10c3 [INFO] running `Command { std: "docker" "start" "-a" "a6bd84de9e3f3c918f99de26da99335e1dc37e8b1dec79f5a3ae0294b84e10c3", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stderr] --> src/dtrace.rs:33:29 [INFO] [stderr] | [INFO] [stderr] 33 | ... self.buffer.split_off(0); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: use `.truncate()` if you don't need the other half [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 33 | let _ = self.buffer.split_off(0); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stderr] --> src/dtrace.rs:39:21 [INFO] [stderr] | [INFO] [stderr] 39 | self.buffer.split_off(0); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: use `.truncate()` if you don't need the other half [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 39 | let _ = self.buffer.split_off(0); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stderr] --> src/dtrace.rs:50:17 [INFO] [stderr] | [INFO] [stderr] 50 | self.buffer.split_off(0); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: use `.truncate()` if you don't need the other half [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 50 | let _ = self.buffer.split_off(0); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `macos-profiler` (bin "macos-profiler" test) generated 3 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/macos_profiler-32442b28d31adada) [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" "a6bd84de9e3f3c918f99de26da99335e1dc37e8b1dec79f5a3ae0294b84e10c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6bd84de9e3f3c918f99de26da99335e1dc37e8b1dec79f5a3ae0294b84e10c3", kill_on_drop: false }` [INFO] [stdout] a6bd84de9e3f3c918f99de26da99335e1dc37e8b1dec79f5a3ae0294b84e10c3