[INFO] fetching crate femto-feed 0.3.0...
[INFO] checking femto-feed-0.3.0 against master#69a5d2481e856a5a18885390b8cf6950b9ff8dd3 for pr-96376
[INFO] extracting crate femto-feed 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate femto-feed 0.3.0 on toolchain 69a5d2481e856a5a18885390b8cf6950b9ff8dd3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate femto-feed 0.3.0
[INFO] finished tweaking crates.io crate femto-feed 0.3.0
[INFO] tweaked toml for crates.io crate femto-feed 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded publicsuffix v1.5.6
[INFO] [stderr]   Downloaded unreachable v0.1.1
[INFO] [stderr]   Downloaded debug_unreachable v0.1.1
[INFO] [stderr]   Downloaded tendril v0.3.1
[INFO] [stderr]   Downloaded hyper v0.12.36
[INFO] [stderr]   Downloaded string_cache v0.5.2
[INFO] [stderr]   Downloaded feed-rs v0.1.3
[INFO] [stderr]   Downloaded xml5ever v0.7.0
[INFO] [stderr]   Downloaded markup5ever v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0424442ad809c405153c9a0a3bb54fcf700da776b41067e74660c9dd65cb8199
[INFO] running `Command { std: "docker" "start" "-a" "0424442ad809c405153c9a0a3bb54fcf700da776b41067e74660c9dd65cb8199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0424442ad809c405153c9a0a3bb54fcf700da776b41067e74660c9dd65cb8199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0424442ad809c405153c9a0a3bb54fcf700da776b41067e74660c9dd65cb8199", kill_on_drop: false }`
[INFO] [stdout] 0424442ad809c405153c9a0a3bb54fcf700da776b41067e74660c9dd65cb8199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 976d5aab5cf0b27b72204ffc06aa00ab8fb349cd45f17756253840b0830347a9
[INFO] running `Command { std: "docker" "start" "-a" "976d5aab5cf0b27b72204ffc06aa00ab8fb349cd45f17756253840b0830347a9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.73/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 -C metadata=8451de8edbca495a -C extra-filename=-8451de8edbca495a --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: 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,future-incompat --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] running `Command { std: "docker" "inspect" "976d5aab5cf0b27b72204ffc06aa00ab8fb349cd45f17756253840b0830347a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "976d5aab5cf0b27b72204ffc06aa00ab8fb349cd45f17756253840b0830347a9", kill_on_drop: false }`
[INFO] [stdout] 976d5aab5cf0b27b72204ffc06aa00ab8fb349cd45f17756253840b0830347a9