[INFO] fetching crate libzetta 0.2.2...
[INFO] checking libzetta-0.2.2 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate libzetta 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libzetta 0.2.2 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libzetta 0.2.2
[INFO] finished tweaking crates.io crate libzetta 0.2.2
[INFO] tweaked toml for crates.io crate libzetta 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26fb7b35e97e378d6073b55db2f8c1e9ec4d3baf39e5b039f549b48ee301330a
[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" "26fb7b35e97e378d6073b55db2f8c1e9ec4d3baf39e5b039f549b48ee301330a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26fb7b35e97e378d6073b55db2f8c1e9ec4d3baf39e5b039f549b48ee301330a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26fb7b35e97e378d6073b55db2f8c1e9ec4d3baf39e5b039f549b48ee301330a", kill_on_drop: false }`
[INFO] [stdout] 26fb7b35e97e378d6073b55db2f8c1e9ec4d3baf39e5b039f549b48ee301330a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] f079d4ee92c75581a356a3979ba4a82cecaf9a4978caf0d8e063add183be2109
[INFO] running `Command { std: "docker" "start" "-a" "f079d4ee92c75581a356a3979ba4a82cecaf9a4978caf0d8e063add183be2109", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking cavity v1.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling zfs-core-sys v0.1.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking cstr-argument v0.1.1
[INFO] [stderr]     Checking libnv v0.2.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking slog-stdlog v4.1.0
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling darling_core v0.10.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling darling_macro v0.10.3
[INFO] [stderr]    Compiling darling v0.10.3
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking libzetta v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `properties::VolumeMode`
[INFO] [stdout]   --> tests/test_zfs.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 | use libzetta::{zfs::{properties::VolumeMode, DelegatingZfsEngine, DestroyTiming},
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.61s
[INFO] running `Command { std: "docker" "inspect" "f079d4ee92c75581a356a3979ba4a82cecaf9a4978caf0d8e063add183be2109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f079d4ee92c75581a356a3979ba4a82cecaf9a4978caf0d8e063add183be2109", kill_on_drop: false }`
[INFO] [stdout] f079d4ee92c75581a356a3979ba4a82cecaf9a4978caf0d8e063add183be2109