[INFO] cloning repository https://github.com/rgb-org/rgb-core
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rgb-org/rgb-core" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgb-org%2Frgb-core", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgb-org%2Frgb-core'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 014a43bc62db313ab499522d23c9193a252d17ae
[INFO] checking rgb-org/rgb-core against master#89b9f7b284aacc5f8613438b80e4dd7bdd10549e for pr-92594
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgb-org%2Frgb-core" "/workspace/builds/worker-118/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-118/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rgb-org/rgb-core on toolchain 89b9f7b284aacc5f8613438b80e4dd7bdd10549e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rgb-org/rgb-core
[INFO] finished tweaking git repo https://github.com/rgb-org/rgb-core
[INFO] tweaked toml for git repo https://github.com/rgb-org/rgb-core written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] crate git repo https://github.com/rgb-org/rgb-core already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "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-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd24fb09c0bab938ac29a516b35f200e1f2e56e7eaba05d17be2d7c3d62033c4
[INFO] running `Command { std: "docker" "start" "-a" "cd24fb09c0bab938ac29a516b35f200e1f2e56e7eaba05d17be2d7c3d62033c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd24fb09c0bab938ac29a516b35f200e1f2e56e7eaba05d17be2d7c3d62033c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd24fb09c0bab938ac29a516b35f200e1f2e56e7eaba05d17be2d7c3d62033c4", kill_on_drop: false }`
[INFO] [stdout] cd24fb09c0bab938ac29a516b35f200e1f2e56e7eaba05d17be2d7c3d62033c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae884a818cbe0ca2d4f338d83fc54205470e636e27a51cea16a45fd1be4bd498
[INFO] running `Command { std: "docker" "start" "-a" "ae884a818cbe0ca2d4f338d83fc54205470e636e27a51cea16a45fd1be4bd498", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.131
[INFO] [stderr]    Compiling serde v1.0.131
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking signature v1.4.0
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking bitcoin_hashes v0.9.7
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rustc_apfloat v0.1.3
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling secp256k1-sys v0.4.1
[INFO] [stderr]    Compiling grin_secp256k1zkp v0.7.11
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking ed25519 v1.3.0
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[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,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=6f34013fb813232d -C extra-filename=-6f34013fb813232d --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" "ae884a818cbe0ca2d4f338d83fc54205470e636e27a51cea16a45fd1be4bd498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae884a818cbe0ca2d4f338d83fc54205470e636e27a51cea16a45fd1be4bd498", kill_on_drop: false }`
[INFO] [stdout] ae884a818cbe0ca2d4f338d83fc54205470e636e27a51cea16a45fd1be4bd498