[INFO] fetching crate macos-profiler 0.2.1...
[INFO] testing macos-profiler-0.2.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate macos-profiler 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate macos-profiler 0.2.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.10.0
[INFO] [stderr]   Downloaded rayon v0.9.0
[INFO] [stderr]   Downloaded command-macros v0.1.11
[INFO] [stderr]   Downloaded ctrlc v3.1.7
[INFO] [stderr]   Downloaded quicli v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6003358557e90c275346858412d102a03557c78d1ec5cc4cddee338a3f4829e
[INFO] running `Command { std: "docker" "start" "-a" "f6003358557e90c275346858412d102a03557c78d1ec5cc4cddee338a3f4829e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6003358557e90c275346858412d102a03557c78d1ec5cc4cddee338a3f4829e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6003358557e90c275346858412d102a03557c78d1ec5cc4cddee338a3f4829e", kill_on_drop: false }`
[INFO] [stdout] f6003358557e90c275346858412d102a03557c78d1ec5cc4cddee338a3f4829e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78a5f9542033996edfd745d84ca64370fa68e94d9101dda65a00a9f4e5647416
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "78a5f9542033996edfd745d84ca64370fa68e94d9101dda65a00a9f4e5647416", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling command-macros v0.1.11
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling rayon v0.9.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling quicli v0.2.0
[INFO] [stderr]    Compiling ctrlc v3.1.7
[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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: use `.truncate()` if you don't need the other half
[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] 
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.49s
[INFO] running `Command { std: "docker" "inspect" "78a5f9542033996edfd745d84ca64370fa68e94d9101dda65a00a9f4e5647416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a5f9542033996edfd745d84ca64370fa68e94d9101dda65a00a9f4e5647416", kill_on_drop: false }`
[INFO] [stdout] 78a5f9542033996edfd745d84ca64370fa68e94d9101dda65a00a9f4e5647416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 062a8b92f0873aead0fd16cde34d2d112582316c7dc9fbd5c056aed8354cd9f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "062a8b92f0873aead0fd16cde34d2d112582316c7dc9fbd5c056aed8354cd9f9", 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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: use `.truncate()` if you don't need the other half
[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] 
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "062a8b92f0873aead0fd16cde34d2d112582316c7dc9fbd5c056aed8354cd9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "062a8b92f0873aead0fd16cde34d2d112582316c7dc9fbd5c056aed8354cd9f9", kill_on_drop: false }`
[INFO] [stdout] 062a8b92f0873aead0fd16cde34d2d112582316c7dc9fbd5c056aed8354cd9f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e16e5d18467eff244ceb32e31a9b739cda018488cc5d229ffe299d3497bd507
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e16e5d18467eff244ceb32e31a9b739cda018488cc5d229ffe299d3497bd507", 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: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: use `.truncate()` if you don't need the other half
[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] 
[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] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/macos_profiler-f0e04106381bcaa8
[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" "7e16e5d18467eff244ceb32e31a9b739cda018488cc5d229ffe299d3497bd507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e16e5d18467eff244ceb32e31a9b739cda018488cc5d229ffe299d3497bd507", kill_on_drop: false }`
[INFO] [stdout] 7e16e5d18467eff244ceb32e31a9b739cda018488cc5d229ffe299d3497bd507