[INFO] cloning repository https://github.com/bon-chi/pingpong
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bon-chi/pingpong" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fpingpong", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fpingpong'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 418c6db3ff3408172917d1ba3a913cdcd68265c3
[INFO] checking bon-chi/pingpong against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fpingpong" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bon-chi/pingpong on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bon-chi/pingpong
[INFO] finished tweaking git repo https://github.com/bon-chi/pingpong
[INFO] tweaked toml for git repo https://github.com/bon-chi/pingpong written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bon-chi/pingpong already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slab v0.1.3
[INFO] [stderr]   Downloaded kernel32-sys v0.2.1
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] [stderr]   Downloaded nix v0.3.9
[INFO] [stderr]   Downloaded log v0.3.5
[INFO] [stderr]   Downloaded bitflags v0.1.1
[INFO] [stderr]   Downloaded time v0.1.34
[INFO] [stderr]   Downloaded mio v0.4.4
[INFO] [stderr]   Downloaded libc v0.2.7
[INFO] [stderr]   Downloaded winapi v0.1.23
[INFO] [stderr]   Downloaded bytes v0.2.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce78e794f2383d2e08d54a5ea86b09ae17674ae07bdfca83cf34d63367d9dd52
[INFO] running `Command { std: "docker" "start" "-a" "ce78e794f2383d2e08d54a5ea86b09ae17674ae07bdfca83cf34d63367d9dd52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce78e794f2383d2e08d54a5ea86b09ae17674ae07bdfca83cf34d63367d9dd52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce78e794f2383d2e08d54a5ea86b09ae17674ae07bdfca83cf34d63367d9dd52", kill_on_drop: false }`
[INFO] [stdout] ce78e794f2383d2e08d54a5ea86b09ae17674ae07bdfca83cf34d63367d9dd52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1edab3821c4c99d3e7b8eb57d015a195ddacc082fabdda8dd2aecb2b3ea6a1e7
[INFO] running `Command { std: "docker" "start" "-a" "1edab3821c4c99d3e7b8eb57d015a195ddacc082fabdda8dd2aecb2b3ea6a1e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]     Checking libc v0.2.7
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking bytes v0.2.11
[INFO] [stderr]     Checking nix v0.3.9
[INFO] [stderr]     Checking time v0.1.34
[INFO] [stderr]     Checking winapi v0.1.23
[INFO] [stderr]     Checking log v0.3.5
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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<'a> extern "C" fn(*mut Box<(dyn FnMut() -> isize + 'a)>) -> i32 {callback}
[INFO] [stdout]     = note: target type: *const for<'a> extern "C" fn(*const Box<(dyn FnMut() -> isize + 'a)>) -> i32
[INFO] [stdout]     = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1edab3821c4c99d3e7b8eb57d015a195ddacc082fabdda8dd2aecb2b3ea6a1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1edab3821c4c99d3e7b8eb57d015a195ddacc082fabdda8dd2aecb2b3ea6a1e7", kill_on_drop: false }`
[INFO] [stdout] 1edab3821c4c99d3e7b8eb57d015a195ddacc082fabdda8dd2aecb2b3ea6a1e7