[INFO] cloning repository https://github.com/danieldk/alpino-tokenizer-python
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danieldk/alpino-tokenizer-python" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanieldk%2Falpino-tokenizer-python", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanieldk%2Falpino-tokenizer-python'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67377e9cf727112cdfd9d421dd023662dc51debf
[INFO] checking danieldk/alpino-tokenizer-python against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanieldk%2Falpino-tokenizer-python" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danieldk/alpino-tokenizer-python on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danieldk/alpino-tokenizer-python
[INFO] finished tweaking git repo https://github.com/danieldk/alpino-tokenizer-python
[INFO] tweaked toml for git repo https://github.com/danieldk/alpino-tokenizer-python written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/danieldk/alpino-tokenizer-python already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a2fcf7d1d27ec592ac9e20d64c201246750e1fc6c348fd1b35a6a4ee4279d49
[INFO] running `Command { std: "docker" "start" "-a" "1a2fcf7d1d27ec592ac9e20d64c201246750e1fc6c348fd1b35a6a4ee4279d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a2fcf7d1d27ec592ac9e20d64c201246750e1fc6c348fd1b35a6a4ee4279d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2fcf7d1d27ec592ac9e20d64c201246750e1fc6c348fd1b35a6a4ee4279d49", kill_on_drop: false }`
[INFO] [stdout] 1a2fcf7d1d27ec592ac9e20d64c201246750e1fc6c348fd1b35a6a4ee4279d49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 549145367f06fe7b5f97a005c5b5da8f5d5b6a2553b2f8d4294bfee5c4d546e7
[INFO] running `Command { std: "docker" "start" "-a" "549145367f06fe7b5f97a005c5b5da8f5d5b6a2553b2f8d4294bfee5c4d546e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking instant v0.1.5
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling pyo3 v0.13.2
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking widestring v0.4.0
[INFO] [stderr]     Checking lock_api v0.4.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling alpino-tokenizer-sys v0.1.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.13.2
[INFO] [stdout] error[E0599]: no method named `is_empty` found for reference `&'a Fields` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-macros-backend-0.13.2/src/from_pyobject.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |             !fields.is_empty(),
[INFO] [stdout]     |                     ^^^^^^^^ method not found in `&'a Fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `len` found for reference `&Fields` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-macros-backend-0.13.2/src/from_pyobject.rs:255:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |             fields.len() == 1,
[INFO] [stdout]     |                    ^^^ method not found in `&Fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyo3-macros-backend` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: cc: fatal error: Killed signal terminated program cc1
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "549145367f06fe7b5f97a005c5b5da8f5d5b6a2553b2f8d4294bfee5c4d546e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549145367f06fe7b5f97a005c5b5da8f5d5b6a2553b2f8d4294bfee5c4d546e7", kill_on_drop: false }`
[INFO] [stdout] 549145367f06fe7b5f97a005c5b5da8f5d5b6a2553b2f8d4294bfee5c4d546e7