[INFO] cloning repository https://github.com/imjacobclark/Herd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imjacobclark/Herd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimjacobclark%2FHerd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimjacobclark%2FHerd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9fda4c5d1aca47588b0ad2191796df27de6f36e
[INFO] testing imjacobclark/Herd against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimjacobclark%2FHerd" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imjacobclark/Herd on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/imjacobclark/Herd
[INFO] finished tweaking git repo https://github.com/imjacobclark/Herd
[INFO] tweaked toml for git repo https://github.com/imjacobclark/Herd written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/imjacobclark/Herd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded traitobject v0.0.1
[INFO] [stderr]   Downloaded httparse v1.1.2
[INFO] [stderr]   Downloaded num_cpus v0.2.12
[INFO] [stderr]   Downloaded mime v0.2.0
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded strsim v0.4.1
[INFO] [stderr]   Downloaded unicode-width v0.1.3
[INFO] [stderr]   Downloaded unicase v1.4.0
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded lazy_static v0.2.1
[INFO] [stderr]   Downloaded log v0.3.6
[INFO] [stderr]   Downloaded bitflags v0.5.0
[INFO] [stderr]   Downloaded openssl v0.7.13
[INFO] [stderr]   Downloaded openssl-sys-extras v0.7.13
[INFO] [stderr]   Downloaded clap v2.5.1
[INFO] [stderr]   Downloaded ansi_term v0.7.2
[INFO] [stderr]   Downloaded rustc-serialize v0.3.19
[INFO] [stderr]   Downloaded yaml-rust v0.3.2
[INFO] [stderr]   Downloaded hyper v0.9.6
[INFO] [stderr]   Downloaded nix v0.5.0
[INFO] [stderr]   Downloaded openssl-verify v0.1.0
[INFO] [stderr]   Downloaded hpack v0.2.0
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded typeable v0.1.2
[INFO] [stderr]   Downloaded time v0.1.35
[INFO] [stderr]   Downloaded threadpool v1.3.0
[INFO] [stderr]   Downloaded solicit v0.4.4
[INFO] [stderr]   Downloaded vec_map v0.6.0
[INFO] [stderr]   Downloaded cookie v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0380bffeae7dd704f33a4454dae24af0ee2ac7fb4f873df9ae422fc4f1a011a0
[INFO] running `Command { std: "docker" "start" "-a" "0380bffeae7dd704f33a4454dae24af0ee2ac7fb4f873df9ae422fc4f1a011a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0380bffeae7dd704f33a4454dae24af0ee2ac7fb4f873df9ae422fc4f1a011a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0380bffeae7dd704f33a4454dae24af0ee2ac7fb4f873df9ae422fc4f1a011a0", kill_on_drop: false }`
[INFO] [stdout] 0380bffeae7dd704f33a4454dae24af0ee2ac7fb4f873df9ae422fc4f1a011a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2ee7b4120db3572539adfbe35b0ffbcb46a330a00cd807063450eaef51ee773
[INFO] running `Command { std: "docker" "start" "-a" "e2ee7b4120db3572539adfbe35b0ffbcb46a330a00cd807063450eaef51ee773", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.28
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling ansi_term v0.7.2
[INFO] [stderr]    Compiling httparse v1.1.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.3
[INFO] [stderr]    Compiling strsim v0.4.1
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling threadpool v1.3.0
[INFO] [stderr]    Compiling yaml-rust v0.3.2
[INFO] [stderr]    Compiling num_cpus v0.2.12
[INFO] [stderr]    Compiling openssl-sys v0.7.13
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[INFO] [stderr]    Compiling mime v0.2.0
[INFO] [stderr]    Compiling solicit v0.4.4
[INFO] [stderr]    Compiling nix v0.5.0
[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-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clap v2.5.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling openssl-sys-extras v0.7.13
[INFO] [stderr]    Compiling openssl v0.7.13
[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[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.5.0/src/sched.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |         ffi::clone(mem::transmute(callback), ptr as *mut c_void, flags.bits(), &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] [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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e2ee7b4120db3572539adfbe35b0ffbcb46a330a00cd807063450eaef51ee773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ee7b4120db3572539adfbe35b0ffbcb46a330a00cd807063450eaef51ee773", kill_on_drop: false }`
[INFO] [stdout] e2ee7b4120db3572539adfbe35b0ffbcb46a330a00cd807063450eaef51ee773