[INFO] cloning repository https://github.com/lennyferguson/Rust_CardServer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lennyferguson/Rust_CardServer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flennyferguson%2FRust_CardServer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flennyferguson%2FRust_CardServer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0afe1f6e41607706cb799d00cdd9318d840a9d89
[INFO] testing lennyferguson/Rust_CardServer against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flennyferguson%2FRust_CardServer" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/lennyferguson/Rust_CardServer on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lennyferguson/Rust_CardServer
[INFO] finished tweaking git repo https://github.com/lennyferguson/Rust_CardServer
[INFO] tweaked toml for git repo https://github.com/lennyferguson/Rust_CardServer written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/lennyferguson/Rust_CardServer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05d4861f1ab0475c5dbf2bf037ad9f0ba884b1f7465765c8ae7ee75b11aa1cdb
[INFO] running `Command { std: "docker" "start" "-a" "05d4861f1ab0475c5dbf2bf037ad9f0ba884b1f7465765c8ae7ee75b11aa1cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05d4861f1ab0475c5dbf2bf037ad9f0ba884b1f7465765c8ae7ee75b11aa1cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d4861f1ab0475c5dbf2bf037ad9f0ba884b1f7465765c8ae7ee75b11aa1cdb", kill_on_drop: false }`
[INFO] [stdout] 05d4861f1ab0475c5dbf2bf037ad9f0ba884b1f7465765c8ae7ee75b11aa1cdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e224dc3cb7ff022a52e5eedd2d8219402c85425d92ad14005204cf6f9e21b0cd
[INFO] running `Command { std: "docker" "start" "-a" "e224dc3cb7ff022a52e5eedd2d8219402c85425d92ad14005204cf6f9e21b0cd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.1.8
[INFO] [stderr]    Compiling winapi v0.2.1
[INFO] [stderr]    Compiling bitflags v0.1.1
[INFO] [stderr]    Compiling bytes v0.2.10
[INFO] [stderr]    Compiling slab v0.1.2
[INFO] [stderr]    Compiling log v0.3.1
[INFO] [stderr]    Compiling nix v0.3.9
[INFO] [stderr]    Compiling kernel32-sys v0.1.3
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[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] [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" "e224dc3cb7ff022a52e5eedd2d8219402c85425d92ad14005204cf6f9e21b0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e224dc3cb7ff022a52e5eedd2d8219402c85425d92ad14005204cf6f9e21b0cd", kill_on_drop: false }`
[INFO] [stdout] e224dc3cb7ff022a52e5eedd2d8219402c85425d92ad14005204cf6f9e21b0cd