[INFO] cloning repository https://github.com/mayflower/duck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mayflower/duck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayflower%2Fduck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayflower%2Fduck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5c1ee04dca9284ee552f5925ec511e4c9b2dd81
[INFO] checking mayflower/duck against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayflower%2Fduck" "/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/mayflower/duck on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mayflower/duck
[INFO] finished tweaking git repo https://github.com/mayflower/duck
[INFO] tweaked toml for git repo https://github.com/mayflower/duck written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mayflower/duck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd84ebaec64f23db9ebbffbc83fa9e745a68b5d25aaf07d6e40239916aa5aff0
[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" "fd84ebaec64f23db9ebbffbc83fa9e745a68b5d25aaf07d6e40239916aa5aff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd84ebaec64f23db9ebbffbc83fa9e745a68b5d25aaf07d6e40239916aa5aff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd84ebaec64f23db9ebbffbc83fa9e745a68b5d25aaf07d6e40239916aa5aff0", kill_on_drop: false }`
[INFO] [stdout] fd84ebaec64f23db9ebbffbc83fa9e745a68b5d25aaf07d6e40239916aa5aff0
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea306d57d6ca673cfc37a3a0ecfe16d0295089f3d05a4e3c01c636ea7a64056f
[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" "ea306d57d6ca673cfc37a3a0ecfe16d0295089f3d05a4e3c01c636ea7a64056f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.1.10
[INFO] [stderr]    Compiling gcc v0.3.19
[INFO] [stderr]    Compiling pkg-config v0.3.6
[INFO] [stderr]     Checking winapi v0.2.4
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]     Checking bitflags v0.3.2
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking language-tags v0.0.7
[INFO] [stderr]     Checking httparse v1.0.0
[INFO] [stderr]     Checking semver v0.1.20
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking unicase v1.0.0
[INFO] [stderr]     Checking threadpool v0.1.4
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.16/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log v0.3.2
[INFO] [stderr]     Checking memchr v0.1.6
[INFO] [stderr]     Checking num_cpus v0.2.6
[INFO] [stderr]    Compiling cmake v0.1.7
[INFO] [stderr]    Compiling libgit2-sys v0.2.20
[INFO] [stderr]     Checking aho-corasick v0.3.4
[INFO] [stderr]     Checking time v0.1.32
[INFO] [stderr]     Checking filetime v0.1.6
[INFO] [stderr]     Checking term v0.2.12
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.1.0
[INFO] [stderr]    Compiling openssl-sys v0.6.7
[INFO] [stderr]    Compiling libz-sys v0.1.9
[INFO] [stderr]    Compiling curl-sys v0.1.26
[INFO] [stderr]    Compiling miniz-sys v0.1.6
[INFO] [stderr]    Compiling libssh2-sys v0.1.31
[INFO] [stderr]     Checking tar v0.3.1
[INFO] [stderr]     Checking regex v0.1.41
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking syncbox v0.2.4
[INFO] [stdout] error[E0446]: private type `SingleSearch` in public interface
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.41/src/prefix.rs:46:12
[INFO] [stdout]     |
[INFO] [stdout] 46  |     Single(SingleSearch),
[INFO] [stdout]     |            ^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] ...
[INFO] [stdout] 169 | struct SingleSearch {
[INFO] [stdout]     | ------------------- `SingleSearch` declared as private
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0446`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex`
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ea306d57d6ca673cfc37a3a0ecfe16d0295089f3d05a4e3c01c636ea7a64056f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea306d57d6ca673cfc37a3a0ecfe16d0295089f3d05a4e3c01c636ea7a64056f", kill_on_drop: false }`
[INFO] [stdout] ea306d57d6ca673cfc37a3a0ecfe16d0295089f3d05a4e3c01c636ea7a64056f