[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 try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayflower%2Fduck" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mayflower/duck on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-2/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.1.6
[INFO] [stderr]   Downloaded puppetfile v0.2.0
[INFO] [stderr]   Downloaded libssh2-sys v0.1.31
[INFO] [stderr]   Downloaded aho-corasick v0.3.4
[INFO] [stderr]   Downloaded unicase v1.0.0
[INFO] [stderr]   Downloaded term v0.2.12
[INFO] [stderr]   Downloaded toml v0.1.23
[INFO] [stderr]   Downloaded crates-io v0.1.0
[INFO] [stderr]   Downloaded docopt v0.6.74
[INFO] [stderr]   Downloaded tar v0.3.1
[INFO] [stderr]   Downloaded libz-sys v0.1.9
[INFO] [stderr]   Downloaded libgit2-sys v0.2.20
[INFO] [stderr]   Downloaded curl-sys v0.1.26
[INFO] [stderr]   Downloaded git2-curl v0.2.4
[INFO] [stderr]   Downloaded cmake v0.1.7
[INFO] [stderr]   Downloaded curl v0.2.12
[INFO] [stderr]   Downloaded cargo v0.5.0
[INFO] [stderr]   Downloaded git2 v0.2.14
[INFO] [stderr]   Downloaded eventual v0.1.4
[INFO] running `Command { std: "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" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efdf803367b236cfa3f092f598b4621719b4969ee3505c40a0151d43d84d4ca9
[INFO] running `Command { std: "docker" "start" "-a" "efdf803367b236cfa3f092f598b4621719b4969ee3505c40a0151d43d84d4ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efdf803367b236cfa3f092f598b4621719b4969ee3505c40a0151d43d84d4ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efdf803367b236cfa3f092f598b4621719b4969ee3505c40a0151d43d84d4ca9", kill_on_drop: false }`
[INFO] [stdout] efdf803367b236cfa3f092f598b4621719b4969ee3505c40a0151d43d84d4ca9
[INFO] running `Command { std: "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" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7014eebb873228eab93e6e192da475b6537f4985ebd5157ba8ce7026f81c2ec9
[INFO] running `Command { std: "docker" "start" "-a" "7014eebb873228eab93e6e192da475b6537f4985ebd5157ba8ce7026f81c2ec9", 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 matches v0.1.2
[INFO] [stderr]     Checking bitflags v0.3.2
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]     Checking regex-syntax v0.2.2
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking httparse v1.0.0
[INFO] [stderr]     Checking strsim v0.3.0
[INFO] [stderr]     Checking unicase v1.0.0
[INFO] [stderr]     Checking semver v0.1.20
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.0.7
[INFO] [stderr]     Checking threadpool v0.1.4
[INFO] [stderr]     Checking glob v0.2.10
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]     Checking log v0.3.2
[INFO] [stderr]     Checking memchr v0.1.6
[INFO] [stderr]     Checking num_cpus v0.2.6
[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 aho-corasick v0.3.4
[INFO] [stderr]    Compiling cmake v0.1.7
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.1.0
[INFO] [stderr]    Compiling libgit2-sys v0.2.20
[INFO] [stderr]     Checking time v0.1.32
[INFO] [stderr]     Checking filetime v0.1.6
[INFO] [stderr]     Checking term v0.2.12
[INFO] [stderr]     Checking tar v0.3.1
[INFO] [stderr]    Compiling openssl-sys v0.6.7
[INFO] [stderr]    Compiling libz-sys v0.1.9
[INFO] [stderr]    Compiling libssh2-sys v0.1.31
[INFO] [stderr]    Compiling curl-sys v0.1.26
[INFO] [stderr]    Compiling miniz-sys v0.1.6
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking regex v0.1.41
[INFO] [stderr]     Checking syncbox v0.2.4
[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: could not compile `rustc-serialize`
[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[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: build failed
[INFO] running `Command { std: "docker" "inspect" "7014eebb873228eab93e6e192da475b6537f4985ebd5157ba8ce7026f81c2ec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7014eebb873228eab93e6e192da475b6537f4985ebd5157ba8ce7026f81c2ec9", kill_on_drop: false }`
[INFO] [stdout] 7014eebb873228eab93e6e192da475b6537f4985ebd5157ba8ce7026f81c2ec9