[INFO] updating cached repository https://github.com/modeverv/Rust2020_port_scanner
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8356ddf74dd62d32ecd8732e0ffe8c6cd5534a9
[INFO] checking modeverv/Rust2020_port_scanner against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2FRust2020_port_scanner" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/modeverv/Rust2020_port_scanner on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/modeverv/Rust2020_port_scanner
[INFO] finished tweaking git repo https://github.com/modeverv/Rust2020_port_scanner
[INFO] tweaked toml for git repo https://github.com/modeverv/Rust2020_port_scanner written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/modeverv/Rust2020_port_scanner already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e4e7c060a121561b8a1b007041463a30a631ef9d239163a3f982c58158fcb25
[INFO] running `"docker" "start" "-a" "7e4e7c060a121561b8a1b007041463a30a631ef9d239163a3f982c58158fcb25"`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling pnet v0.25.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking pnet_macros_support v0.25.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.43
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.42.0/src/parse/parser.rs:2603:34
[INFO] [stderr]      |
[INFO] [stderr] 2603 | ...                   float.trunc() as usize,
[INFO] [stderr]      |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking ipnetwork v0.15.1
[INFO] [stderr]     Checking pnet_datalink v0.25.0
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `syntex_syntax`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7e4e7c060a121561b8a1b007041463a30a631ef9d239163a3f982c58158fcb25"`
[INFO] running `"docker" "rm" "-f" "7e4e7c060a121561b8a1b007041463a30a631ef9d239163a3f982c58158fcb25"`
[INFO] [stdout] 7e4e7c060a121561b8a1b007041463a30a631ef9d239163a3f982c58158fcb25