[INFO] cloning repository https://github.com/mhallin/loadbalancer-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mhallin/loadbalancer-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhallin%2Floadbalancer-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhallin%2Floadbalancer-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8713f76f54c3eb249a0366a07fd380b4a7424bc
[INFO] checking mhallin/loadbalancer-rs against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhallin%2Floadbalancer-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mhallin/loadbalancer-rs on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mhallin/loadbalancer-rs
[INFO] finished tweaking git repo https://github.com/mhallin/loadbalancer-rs
[INFO] tweaked toml for git repo https://github.com/mhallin/loadbalancer-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mhallin/loadbalancer-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clock_ticks v0.0.5
[INFO] [stderr]   Downloaded memchr v0.1.6
[INFO] [stderr]   Downloaded aho-corasick v0.3.4
[INFO] [stderr]   Downloaded mio v0.4.3
[INFO] [stderr]   Downloaded clap v1.4.5
[INFO] [stderr]   Downloaded ansi_term v0.6.3
[INFO] [stderr]   Downloaded unicode-normalization v0.1.1
[INFO] [stderr]   Downloaded winapi v0.1.23
[INFO] [stderr]   Downloaded toml v0.1.23
[INFO] [stderr]   Downloaded env_logger v0.3.1
[INFO] [stderr]   Downloaded bytes v0.2.11
[INFO] [stderr]   Downloaded slab v0.1.2
[INFO] [stderr]   Downloaded log v0.3.2
[INFO] [stderr]   Downloaded nix v0.3.9
[INFO] [stderr]   Downloaded clippy v0.0.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d5e6729068eadbbb95fe0b1e1fdf12e4dc74f9c29400dd54ae5193a519f28d7
[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" "3d5e6729068eadbbb95fe0b1e1fdf12e4dc74f9c29400dd54ae5193a519f28d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d5e6729068eadbbb95fe0b1e1fdf12e4dc74f9c29400dd54ae5193a519f28d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5e6729068eadbbb95fe0b1e1fdf12e4dc74f9c29400dd54ae5193a519f28d7", kill_on_drop: false }`
[INFO] [stdout] 3d5e6729068eadbbb95fe0b1e1fdf12e4dc74f9c29400dd54ae5193a519f28d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7efba896cfa27361ffe6ccfca801bcaf44fc1413e5e7315ecf3f85470f9193b9
[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" "7efba896cfa27361ffe6ccfca801bcaf44fc1413e5e7315ecf3f85470f9193b9", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.1.10
[INFO] [stderr]     Checking bytes v0.2.11
[INFO] [stderr]     Checking slab v0.1.2
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]     Checking bitflags v0.3.2
[INFO] [stderr]     Checking clap v1.4.5
[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 memchr v0.1.6
[INFO] [stderr]     Checking log v0.3.2
[INFO] [stderr]     Checking nix v0.3.9
[INFO] [stderr]     Checking winapi v0.1.23
[INFO] [stderr]     Checking clock_ticks v0.0.5
[INFO] [stderr]     Checking aho-corasick v0.3.4
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.3.9/src/sched.rs:168:20
[INFO] [stdout]     |
[INFO] [stdout] 168 |         ffi::clone(mem::transmute(callback), ptr as *mut c_void, flags, &mut cb)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: source type: for<'r> extern "C" fn(*mut Box<(dyn FnMut() -> isize + 'r)>) -> i32 {callback}
[INFO] [stdout]     = note: target type: *const for<'r> extern "C" fn(*const Box<(dyn FnMut() -> isize + 'r)>) -> i32
[INFO] [stdout]     = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v0.1.41
[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` due to 2 previous errors
[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 E0591`.
[INFO] [stdout] 
[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" "7efba896cfa27361ffe6ccfca801bcaf44fc1413e5e7315ecf3f85470f9193b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efba896cfa27361ffe6ccfca801bcaf44fc1413e5e7315ecf3f85470f9193b9", kill_on_drop: false }`
[INFO] [stdout] 7efba896cfa27361ffe6ccfca801bcaf44fc1413e5e7315ecf3f85470f9193b9