[INFO] cloning repository https://github.com/adamreeve/mio-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamreeve/mio-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamreeve%2Fmio-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamreeve%2Fmio-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c8cb526175abc63ca500757e2cd4a5c1dc8e933
[INFO] testing adamreeve/mio-server against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamreeve%2Fmio-server" "/workspace/builds/worker-56/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamreeve/mio-server on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamreeve/mio-server
[INFO] finished tweaking git repo https://github.com/adamreeve/mio-server
[INFO] tweaked toml for git repo https://github.com/adamreeve/mio-server written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate git repo https://github.com/adamreeve/mio-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miow v0.1.2
[INFO] [stderr]   Downloaded env_logger v0.3.2
[INFO] [stderr]   Downloaded bytes v0.3.0
[INFO] [stderr]   Downloaded winapi v0.2.6
[INFO] [stderr]   Downloaded regex-syntax v0.3.0
[INFO] [stderr]   Downloaded aho-corasick v0.5.1
[INFO] [stderr]   Downloaded memchr v0.1.10
[INFO] [stderr]   Downloaded net2 v0.2.23
[INFO] [stderr]   Downloaded libc v0.2.8
[INFO] [stderr]   Downloaded mio v0.5.0
[INFO] [stderr]   Downloaded slab v0.1.3
[INFO] [stderr]   Downloaded regex v0.1.58
[INFO] [stderr]   Downloaded nix v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b84d683e182b35b01cac096701dbc945fb66ddf02ffe63d8fbda8d717cbb66e
[INFO] running `Command { std: "docker" "start" "-a" "4b84d683e182b35b01cac096701dbc945fb66ddf02ffe63d8fbda8d717cbb66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b84d683e182b35b01cac096701dbc945fb66ddf02ffe63d8fbda8d717cbb66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b84d683e182b35b01cac096701dbc945fb66ddf02ffe63d8fbda8d717cbb66e", kill_on_drop: false }`
[INFO] [stdout] 4b84d683e182b35b01cac096701dbc945fb66ddf02ffe63d8fbda8d717cbb66e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 942894a31c1cbed29670b080bad782fec9ef25996bd8bef96776c9da09474253
[INFO] running `Command { std: "docker" "start" "-a" "942894a31c1cbed29670b080bad782fec9ef25996bd8bef96776c9da09474253", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.8
[INFO] [stderr]    Compiling winapi v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling regex-syntax v0.3.0
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling nix v0.4.2
[INFO] [stderr]    Compiling memchr v0.1.10
[INFO] [stderr]    Compiling log v0.3.5
[INFO] [stderr]    Compiling time v0.1.34
[INFO] [stderr]    Compiling aho-corasick v0.5.1
[INFO] [stderr]    Compiling net2 v0.2.23
[INFO] [stderr]    Compiling miow v0.1.2
[INFO] [stderr]    Compiling regex v0.1.58
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.4.2/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] [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: could not compile `nix` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "942894a31c1cbed29670b080bad782fec9ef25996bd8bef96776c9da09474253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942894a31c1cbed29670b080bad782fec9ef25996bd8bef96776c9da09474253", kill_on_drop: false }`
[INFO] [stdout] 942894a31c1cbed29670b080bad782fec9ef25996bd8bef96776c9da09474253