[INFO] fetching crate spaceindex-py 0.3.0...
[INFO] checking spaceindex-py-0.3.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate spaceindex-py 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate spaceindex-py 0.3.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spaceindex-py 0.3.0
[INFO] finished tweaking crates.io crate spaceindex-py 0.3.0
[INFO] tweaked toml for crates.io crate spaceindex-py 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c56db67a7c914a24969c7ce2b8eaa4aabf385481536ed79aac3313e885d28498
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c56db67a7c914a24969c7ce2b8eaa4aabf385481536ed79aac3313e885d28498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c56db67a7c914a24969c7ce2b8eaa4aabf385481536ed79aac3313e885d28498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56db67a7c914a24969c7ce2b8eaa4aabf385481536ed79aac3313e885d28498", kill_on_drop: false }`
[INFO] [stdout] c56db67a7c914a24969c7ce2b8eaa4aabf385481536ed79aac3313e885d28498
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f493bf9b43b0e385bc8bc271c648349744f95d7eee8f2d48dfaeeda31f1abb2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3f493bf9b43b0e385bc8bc271c648349744f95d7eee8f2d48dfaeeda31f1abb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking rustc-ap-graphviz v645.0.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.4/src/lib.rs:91:42
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3f493bf9b43b0e385bc8bc271c648349744f95d7eee8f2d48dfaeeda31f1abb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f493bf9b43b0e385bc8bc271c648349744f95d7eee8f2d48dfaeeda31f1abb2", kill_on_drop: false }`
[INFO] [stdout] 3f493bf9b43b0e385bc8bc271c648349744f95d7eee8f2d48dfaeeda31f1abb2