[INFO] cloning repository https://github.com/jmquigs/rotor-webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmquigs/rotor-webserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmquigs%2Frotor-webserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmquigs%2Frotor-webserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec49a6af7a8c4487cfbea354c31700680d4499c0
[INFO] checking jmquigs/rotor-webserver against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmquigs%2Frotor-webserver" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmquigs/rotor-webserver on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jmquigs/rotor-webserver
[INFO] finished tweaking git repo https://github.com/jmquigs/rotor-webserver
[INFO] tweaked toml for git repo https://github.com/jmquigs/rotor-webserver written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jmquigs/rotor-webserver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 net2 v0.2.18
[INFO] [stderr]   Downloaded slab v0.1.2
[INFO] [stderr]   Downloaded netbuf v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ec0f1e6a912fd336f21f3c5f09936cfb0521cceee238a543048632f273e3ee0
[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" "2ec0f1e6a912fd336f21f3c5f09936cfb0521cceee238a543048632f273e3ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ec0f1e6a912fd336f21f3c5f09936cfb0521cceee238a543048632f273e3ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec0f1e6a912fd336f21f3c5f09936cfb0521cceee238a543048632f273e3ee0", kill_on_drop: false }`
[INFO] [stdout] 2ec0f1e6a912fd336f21f3c5f09936cfb0521cceee238a543048632f273e3ee0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 45300a05aa9f856a85588d333eb514654acadc1db95e2d4aaf174720511767ec
[INFO] running `Command { std: "docker" "start" "-a" "45300a05aa9f856a85588d333eb514654acadc1db95e2d4aaf174720511767ec", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.2
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking slab v0.1.2
[INFO] [stderr]     Checking bytes v0.2.10 (https://github.com/carllerche/bytes?rev=7edb577d0a#7edb577d)
[INFO] [stderr]     Checking netbuf v0.2.0
[INFO] [stderr]     Checking ws2_32-sys v0.2.1
[INFO] [stderr]     Checking log v0.3.3
[INFO] [stderr]     Checking nix v0.4.1 (https://github.com/carllerche/nix-rust?rev=ad87c3bdc9#ad87c3bd)
[INFO] [stderr]     Checking net2 v0.2.18
[INFO] [stderr]     Checking time v0.1.34
[INFO] [stderr]     Checking memchr v0.1.7
[INFO] [stderr]     Checking miow v0.1.1 (https://github.com/alexcrichton/miow?rev=b00451dfb1#b00451df)
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/nix-rust-d606302ceff0dca5/ad87c3b/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] running `Command { std: "docker" "inspect" "45300a05aa9f856a85588d333eb514654acadc1db95e2d4aaf174720511767ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45300a05aa9f856a85588d333eb514654acadc1db95e2d4aaf174720511767ec", kill_on_drop: false }`
[INFO] [stdout] 45300a05aa9f856a85588d333eb514654acadc1db95e2d4aaf174720511767ec
