[INFO] fetching crate macos-profiler 0.2.1...
[INFO] testing macos-profiler-0.2.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate macos-profiler 0.2.1 into /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate macos-profiler 0.2.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.51)
[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: v1.12.2)
[INFO] [stderr]       Adding shlex v0.1.1 (available: v1.3.0)
[INFO] [stderr]       Adding toml v0.4.10 (available: v0.9.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.2.18
[INFO] [stderr]   Downloaded quicli v0.2.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.5
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded failure_derive v0.1.8
[INFO] [stderr]   Downloaded ucd-util v0.1.10
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded structopt v0.2.18
[INFO] [stderr]   Downloaded block2 v0.6.2
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded objc2 v0.6.3
[INFO] [stderr]   Downloaded rayon v0.9.0
[INFO] [stderr]   Downloaded nix v0.10.0
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded humantime v1.3.0
[INFO] [stderr]   Downloaded bytes v0.4.12
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded command-macros v0.1.11
[INFO] [stderr]   Downloaded toml v0.4.10
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded ctrlc v3.5.1
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbc8a499f6ab5785e64c68594af93d05cb749530b8d2f93489f5ab7ff4dab9ec
[INFO] running `Command { std: "docker" "start" "-a" "cbc8a499f6ab5785e64c68594af93d05cb749530b8d2f93489f5ab7ff4dab9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbc8a499f6ab5785e64c68594af93d05cb749530b8d2f93489f5ab7ff4dab9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbc8a499f6ab5785e64c68594af93d05cb749530b8d2f93489f5ab7ff4dab9ec", kill_on_drop: false }`
[INFO] [stdout] cbc8a499f6ab5785e64c68594af93d05cb749530b8d2f93489f5ab7ff4dab9ec
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 986aaf5bad6f59926a0501b25b169a5a68bce4fa8000df3b50b01997650fa55e
[INFO] running `Command { std: "docker" "start" "-a" "986aaf5bad6f59926a0501b25b169a5a68bce4fa8000df3b50b01997650fa55e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling rayon v0.9.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling command-macros v0.1.11
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling ctrlc v3.5.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling structopt v0.2.18
[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::<T, A>::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::<T, A>::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::<T, A>::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 18.69s
[INFO] running `Command { std: "docker" "inspect" "986aaf5bad6f59926a0501b25b169a5a68bce4fa8000df3b50b01997650fa55e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "986aaf5bad6f59926a0501b25b169a5a68bce4fa8000df3b50b01997650fa55e", kill_on_drop: false }`
[INFO] [stdout] 986aaf5bad6f59926a0501b25b169a5a68bce4fa8000df3b50b01997650fa55e
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70c882518d444a1c4c8e32a6c95e890b59d876a172f12f3acf19a50fa85ad570
[INFO] running `Command { std: "docker" "start" "-a" "70c882518d444a1c4c8e32a6c95e890b59d876a172f12f3acf19a50fa85ad570", kill_on_drop: false }`
[INFO] [stderr]    Compiling macos-profiler v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::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::<T, A>::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::<T, A>::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 0.49s
[INFO] running `Command { std: "docker" "inspect" "70c882518d444a1c4c8e32a6c95e890b59d876a172f12f3acf19a50fa85ad570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70c882518d444a1c4c8e32a6c95e890b59d876a172f12f3acf19a50fa85ad570", kill_on_drop: false }`
[INFO] [stdout] 70c882518d444a1c4c8e32a6c95e890b59d876a172f12f3acf19a50fa85ad570
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 722d32adc914d501f4dc4d58bc07f9f2a01bc6327be5a6b9984d952cd19b4af1
[INFO] running `Command { std: "docker" "start" "-a" "722d32adc914d501f4dc4d58bc07f9f2a01bc6327be5a6b9984d952cd19b4af1", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::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::<T, A>::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::<T, A>::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 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/macos_profiler-59a9870dab92e3c7)
[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" "722d32adc914d501f4dc4d58bc07f9f2a01bc6327be5a6b9984d952cd19b4af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "722d32adc914d501f4dc4d58bc07f9f2a01bc6327be5a6b9984d952cd19b4af1", kill_on_drop: false }`
[INFO] [stdout] 722d32adc914d501f4dc4d58bc07f9f2a01bc6327be5a6b9984d952cd19b4af1
