[INFO] fetching crate cuckoo_miner 0.5.2... [INFO] testing cuckoo_miner-0.5.2 against master#d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d for pr-83796 [INFO] extracting crate cuckoo_miner 0.5.2 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate cuckoo_miner 0.5.2 on toolchain d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cuckoo_miner 0.5.2 [INFO] finished tweaking crates.io crate cuckoo_miner 0.5.2 [INFO] tweaked toml for crates.io crate cuckoo_miner 0.5.2 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 64706bd1f49605dc09f0c42a0a47e5c715cee11d179548547905ecbd03a5151c [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" "64706bd1f49605dc09f0c42a0a47e5c715cee11d179548547905ecbd03a5151c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "64706bd1f49605dc09f0c42a0a47e5c715cee11d179548547905ecbd03a5151c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64706bd1f49605dc09f0c42a0a47e5c715cee11d179548547905ecbd03a5151c", kill_on_drop: false }` [INFO] [stdout] 64706bd1f49605dc09f0c42a0a47e5c715cee11d179548547905ecbd03a5151c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+d408fdd4a82bc3e7ea61dd81bc9a8781b2bf939d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a7c49b4e79ed6da1aa71156eb4332b9027f440a3ff67162591caf7f5029f6df2 [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" "a7c49b4e79ed6da1aa71156eb4332b9027f440a3ff67162591caf7f5029f6df2", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.71 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling slog v2.1.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling ucd-util v0.1.8 [INFO] [stderr] Compiling fs_extra v1.2.0 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling thread_local v1.1.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling cmake v0.1.45 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling blake2-rfc v0.2.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling backtrace v0.3.58 [INFO] [stderr] Compiling cuckoo_miner v0.5.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `sanity::Finder` [INFO] [stdout] --> src/build.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use sanity::Finder; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling term v0.7.0 [INFO] [stdout] warning: struct is never constructed: `Finder` [INFO] [stdout] --> src/sanity.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Finder { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/sanity.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `maybe_have` [INFO] [stdout] --> src/sanity.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn maybe_have>(&mut self, cmd: S) -> Option { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling slog-async v2.6.0 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling slog-term v2.8.0 [INFO] [stderr] error: could not compile `regex-syntax` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.5.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=63a396f6b6ffe5d0 -C extra-filename=-63a396f6b6ffe5d0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-6ed559ca06d7f02a.rmeta --cap-lints allow --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" "a7c49b4e79ed6da1aa71156eb4332b9027f440a3ff67162591caf7f5029f6df2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7c49b4e79ed6da1aa71156eb4332b9027f440a3ff67162591caf7f5029f6df2", kill_on_drop: false }` [INFO] [stdout] a7c49b4e79ed6da1aa71156eb4332b9027f440a3ff67162591caf7f5029f6df2