[INFO] updating cached repository https://github.com/eyalron33/rust_p2p_experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2631568f1bc4b0044d4d449925c2d1368fcb8323
[INFO] testing eyalron33/rust_p2p_experiments against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feyalron33%2Frust_p2p_experiments" "/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/eyalron33/rust_p2p_experiments on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eyalron33/rust_p2p_experiments
[INFO] finished tweaking git repo https://github.com/eyalron33/rust_p2p_experiments
[INFO] tweaked toml for git repo https://github.com/eyalron33/rust_p2p_experiments written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/eyalron33/rust_p2p_experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6070f7e8e981ae7aef44660f8b93a1f0280b8c27d367c1f8c5035d5e122a7a43
[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" "6070f7e8e981ae7aef44660f8b93a1f0280b8c27d367c1f8c5035d5e122a7a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6070f7e8e981ae7aef44660f8b93a1f0280b8c27d367c1f8c5035d5e122a7a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6070f7e8e981ae7aef44660f8b93a1f0280b8c27d367c1f8c5035d5e122a7a43", kill_on_drop: false }`
[INFO] [stdout] 6070f7e8e981ae7aef44660f8b93a1f0280b8c27d367c1f8c5035d5e122a7a43
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74ca514613b7c81e3361cdcab92fd2f46f32b6537619da681efdd475ce9f5f90
[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" "74ca514613b7c81e3361cdcab92fd2f46f32b6537619da681efdd475ce9f5f90", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling slab v0.2.0 (https://github.com/carllerche/slab?rev=5476efcafb#5476efca)
[INFO] [stderr]    Compiling libsodium-sys v0.0.12
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling nix v0.5.0-pre (https://github.com/carllerche/nix-rust?rev=c4257f8a76#c4257f8a)
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/nix-rust-d606302ceff0dca5/c4257f8/src/sched.rs:190:20
[INFO] [stdout]     |
[INFO] [stdout] 190 |         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 std::boxed::Box<(dyn std::ops::FnMut() -> isize + 'r)>) -> i32 {sched::clone::callback}
[INFO] [stdout]     = note: target type: *const for<'r> extern "C" fn(*const std::boxed::Box<(dyn std::ops::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`.
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "74ca514613b7c81e3361cdcab92fd2f46f32b6537619da681efdd475ce9f5f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ca514613b7c81e3361cdcab92fd2f46f32b6537619da681efdd475ce9f5f90", kill_on_drop: false }`
[INFO] [stdout] 74ca514613b7c81e3361cdcab92fd2f46f32b6537619da681efdd475ce9f5f90