[INFO] cloning repository https://github.com/Trivernis/2b-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Trivernis/2b-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrivernis%2F2b-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrivernis%2F2b-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a75deebba0ae56af784489a3795e76339c86102a
[INFO] checking Trivernis/2b-rs against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrivernis%2F2b-rs" "/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/Trivernis/2b-rs on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Trivernis/2b-rs
[INFO] finished tweaking git repo https://github.com/Trivernis/2b-rs
[INFO] tweaked toml for git repo https://github.com/Trivernis/2b-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Trivernis/2b-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7c278cc245ad23c7e988ee2e30e7aff2abffa76b15feb52d8cb41780e7d181a
[INFO] running `Command { std: "docker" "start" "-a" "a7c278cc245ad23c7e988ee2e30e7aff2abffa76b15feb52d8cb41780e7d181a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7c278cc245ad23c7e988ee2e30e7aff2abffa76b15feb52d8cb41780e7d181a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c278cc245ad23c7e988ee2e30e7aff2abffa76b15feb52d8cb41780e7d181a", kill_on_drop: false }`
[INFO] [stdout] a7c278cc245ad23c7e988ee2e30e7aff2abffa76b15feb52d8cb41780e7d181a
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9403ebef23fd688c5f12e867681856d557ddb081321df98e136e50611892aea9
[INFO] running `Command { std: "docker" "start" "-a" "9403ebef23fd688c5f12e867681856d557ddb081321df98e136e50611892aea9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serenity v0.10.9
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking pnet_base v0.26.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling songbird v0.1.8
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling sysinfo v0.16.5
[INFO] [stderr]     Checking spin_sleep v1.0.0
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]     Checking urlencoding v1.3.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking pnet_macros_support v0.26.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling lavalink-rs v0.7.2
[INFO] [stderr]     Checking spinning_top v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling audiopus_sys v0.1.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking nanorand v0.6.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling rustc_version_runtime v0.2.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustc_serialize /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.24/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=306a29a12f142e2b -C extra-filename=-306a29a12f142e2b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "9403ebef23fd688c5f12e867681856d557ddb081321df98e136e50611892aea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9403ebef23fd688c5f12e867681856d557ddb081321df98e136e50611892aea9", kill_on_drop: false }`
[INFO] [stdout] 9403ebef23fd688c5f12e867681856d557ddb081321df98e136e50611892aea9