[INFO] cloning repository https://github.com/ninedotslabs/bublabub-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ninedotslabs/bublabub-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fninedotslabs%2Fbublabub-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fninedotslabs%2Fbublabub-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ba56de3086a8ded26bcac6aca02ec780b4316ba
[INFO] checking ninedotslabs/bublabub-rs against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fninedotslabs%2Fbublabub-rs" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ninedotslabs/bublabub-rs on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ninedotslabs/bublabub-rs
[INFO] finished tweaking git repo https://github.com/ninedotslabs/bublabub-rs
[INFO] tweaked toml for git repo https://github.com/ninedotslabs/bublabub-rs written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/ninedotslabs/bublabub-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34f0bdba6ec2f569733a3eee16744f1dd32626f275fcd88039409f8660b9e9f3
[INFO] running `Command { std: "docker" "start" "-a" "34f0bdba6ec2f569733a3eee16744f1dd32626f275fcd88039409f8660b9e9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34f0bdba6ec2f569733a3eee16744f1dd32626f275fcd88039409f8660b9e9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34f0bdba6ec2f569733a3eee16744f1dd32626f275fcd88039409f8660b9e9f3", kill_on_drop: false }`
[INFO] [stdout] 34f0bdba6ec2f569733a3eee16744f1dd32626f275fcd88039409f8660b9e9f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d9ac28c0148a7ae18f7d150fb253f247ec71ecfbac41ab262c8d5129aba1076
[INFO] running `Command { std: "docker" "start" "-a" "0d9ac28c0148a7ae18f7d150fb253f247ec71ecfbac41ab262c8d5129aba1076", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking httpdate v1.0.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking cpufeatures v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling serenity v0.10.5 (https://github.com/serenity-rs/serenity?branch=current#7315d789)
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr] error: could not compile `proc-macro-hack`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name proc_macro_hack --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-0.5.19/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=91e0b1e0fa231bd6 -C extra-filename=-91e0b1e0fa231bd6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro --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" "0d9ac28c0148a7ae18f7d150fb253f247ec71ecfbac41ab262c8d5129aba1076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9ac28c0148a7ae18f7d150fb253f247ec71ecfbac41ab262c8d5129aba1076", kill_on_drop: false }`
[INFO] [stdout] 0d9ac28c0148a7ae18f7d150fb253f247ec71ecfbac41ab262c8d5129aba1076