[INFO] cloning repository https://github.com/y0unghe/grin-miner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/y0unghe/grin-miner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy0unghe%2Fgrin-miner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy0unghe%2Fgrin-miner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c44f432cc37f9cb64dfdc52d704583f709715268
[INFO] building y0unghe/grin-miner against try#b755f8b9936d084e0363ce6b393c7e444a37080e for pr-97334-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy0unghe%2Fgrin-miner" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y0unghe/grin-miner on toolchain b755f8b9936d084e0363ce6b393c7e444a37080e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b755f8b9936d084e0363ce6b393c7e444a37080e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/y0unghe/grin-miner
[INFO] finished tweaking git repo https://github.com/y0unghe/grin-miner
[INFO] tweaked toml for git repo https://github.com/y0unghe/grin-miner written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/y0unghe/grin-miner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b755f8b9936d084e0363ce6b393c7e444a37080e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+b755f8b9936d084e0363ce6b393c7e444a37080e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49747ad7bf7a7cc6d1161e085e764e7591b2ab559556893139f2eda2ef76b9d9
[INFO] running `Command { std: "docker" "start" "-a" "49747ad7bf7a7cc6d1161e085e764e7591b2ab559556893139f2eda2ef76b9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49747ad7bf7a7cc6d1161e085e764e7591b2ab559556893139f2eda2ef76b9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49747ad7bf7a7cc6d1161e085e764e7591b2ab559556893139f2eda2ef76b9d9", kill_on_drop: false }`
[INFO] [stdout] 49747ad7bf7a7cc6d1161e085e764e7591b2ab559556893139f2eda2ef76b9d9
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+b755f8b9936d084e0363ce6b393c7e444a37080e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43c90f691ad325d116eaad8b846bebbc43d33a748d48a0a06b3d5b4f4687a549
[INFO] running `Command { std: "docker" "start" "-a" "43c90f691ad325d116eaad8b846bebbc43d33a748d48a0a06b3d5b4f4687a549", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling array-macro v1.0.2
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.3.0
[INFO] [stderr]    Compiling xi-unicode v0.1.0
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling bufstream v0.1.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling cmake v0.1.34
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling enum-map-internals v0.1.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling libz-sys v1.0.22
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling cuckoo_miner v2.0.0 (/opt/rustwide/workdir/cuckoo-miner)
[INFO] [stdout] warning: struct `Finder` is never constructed
[INFO] [stdout]   --> cuckoo-miner/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 `new` is never used
[INFO] [stdout]   --> cuckoo-miner/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 `maybe_have` is never used
[INFO] [stdout]   --> cuckoo-miner/src/sanity.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn maybe_have<S: AsRef<OsStr>>(&mut self, cmd: S) -> Option<PathBuf> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling signal-hook-registry v1.0.1
[INFO] [stderr]    Compiling dirs v1.0.3
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling signal-hook v0.1.9
[INFO] [stderr]    Compiling pancurses v0.16.1
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.27
[INFO] [stderr]    Compiling toml v0.5.0
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr]    Compiling enum-map-derive v0.4.0
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling enum-map v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr] error: could not compile `darling_core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name darling_core /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/darling_core-0.9.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="strsim"' --cfg 'feature="suggestions"' -C metadata=9ea9b183155bc51c -C extra-filename=-9ea9b183155bc51c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-8c5c165005b941da.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-8a08f83f83dee0c4.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-74cf65b213176c4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8ca32e6da51aef88.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-086f10016726ef86.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-2f2a64e46562ee46.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "43c90f691ad325d116eaad8b846bebbc43d33a748d48a0a06b3d5b4f4687a549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c90f691ad325d116eaad8b846bebbc43d33a748d48a0a06b3d5b4f4687a549", kill_on_drop: false }`
[INFO] [stdout] 43c90f691ad325d116eaad8b846bebbc43d33a748d48a0a06b3d5b4f4687a549