[INFO] fetching crate cgroups-rs 0.2.7...
[INFO] testing cgroups-rs-0.2.7 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate cgroups-rs 0.2.7 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate cgroups-rs 0.2.7 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-80/source/.cargo/config
[INFO] started tweaking crates.io crate cgroups-rs 0.2.7
[INFO] finished tweaking crates.io crate cgroups-rs 0.2.7
[INFO] tweaked toml for crates.io crate cgroups-rs 0.2.7 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f51de63b8eaff85b0b9dd83fa288eec5b7f11c413a39fa911b7c0a19cde09bd1
[INFO] running `Command { std: "docker" "start" "-a" "f51de63b8eaff85b0b9dd83fa288eec5b7f11c413a39fa911b7c0a19cde09bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f51de63b8eaff85b0b9dd83fa288eec5b7f11c413a39fa911b7c0a19cde09bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f51de63b8eaff85b0b9dd83fa288eec5b7f11c413a39fa911b7c0a19cde09bd1", kill_on_drop: false }`
[INFO] [stdout] f51de63b8eaff85b0b9dd83fa288eec5b7f11c413a39fa911b7c0a19cde09bd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 721916bd062e2c66bffaea8d5f86e6600ec8e9fa52b643643c371426bfc9f0b5
[INFO] running `Command { std: "docker" "start" "-a" "721916bd062e2c66bffaea8d5f86e6600ec8e9fa52b643643c371426bfc9f0b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling nix v0.20.2
[INFO] [stderr]    Compiling cgroups-rs v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `v2`
[INFO] [stdout]   --> src/systemd.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     v2: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 9.11s
[INFO] running `Command { std: "docker" "inspect" "721916bd062e2c66bffaea8d5f86e6600ec8e9fa52b643643c371426bfc9f0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "721916bd062e2c66bffaea8d5f86e6600ec8e9fa52b643643c371426bfc9f0b5", kill_on_drop: false }`
[INFO] [stdout] 721916bd062e2c66bffaea8d5f86e6600ec8e9fa52b643643c371426bfc9f0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a70f7499961cfc0e9a7649cf11934d196319aa7d83ea6ac8cf6db3c87ba364e4
[INFO] running `Command { std: "docker" "start" "-a" "a70f7499961cfc0e9a7649cf11934d196319aa7d83ea6ac8cf6db3c87ba364e4", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `v2`
[INFO] [stdout]   --> src/systemd.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     v2: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cgroups-rs v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `v2`
[INFO] [stdout]   --> src/systemd.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     v2: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cgroups-rs`; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cgroups_rs --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=1a8555a844286492 -C extra-filename=-1a8555a844286492 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-68b7881bfb7e9fb4.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-d1d9e9bb2ac58ba1.rlib --extern nix=/opt/rustwide/target/debug/deps/libnix-e82dcf916a9abef0.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-dd9363dd410b6a25.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a70f7499961cfc0e9a7649cf11934d196319aa7d83ea6ac8cf6db3c87ba364e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70f7499961cfc0e9a7649cf11934d196319aa7d83ea6ac8cf6db3c87ba364e4", kill_on_drop: false }`
[INFO] [stdout] a70f7499961cfc0e9a7649cf11934d196319aa7d83ea6ac8cf6db3c87ba364e4