[INFO] crate nc 0.4.12 is already in cache
[INFO] testing nc-0.4.12 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate nc 0.4.12 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate nc 0.4.12 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 crates.io crate nc 0.4.12
[INFO] finished tweaking crates.io crate nc 0.4.12
[INFO] tweaked toml for crates.io crate nc 0.4.12 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate nc 0.4.12 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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] daba819f4b28c6bd66b01c2ee90f74f1410573ddd50bc8be99a3419e94090271
[INFO] running `Command { std: "docker" "start" "-a" "daba819f4b28c6bd66b01c2ee90f74f1410573ddd50bc8be99a3419e94090271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daba819f4b28c6bd66b01c2ee90f74f1410573ddd50bc8be99a3419e94090271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daba819f4b28c6bd66b01c2ee90f74f1410573ddd50bc8be99a3419e94090271", kill_on_drop: false }`
[INFO] [stdout] daba819f4b28c6bd66b01c2ee90f74f1410573ddd50bc8be99a3419e94090271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 14f2639ec973f33bd2c0b92fb743cca902f5f789fd70911f2a2bf604121152d0
[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" "14f2639ec973f33bd2c0b92fb743cca902f5f789fd70911f2a2bf604121152d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling nc v0.4.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.13s
[INFO] running `Command { std: "docker" "inspect" "14f2639ec973f33bd2c0b92fb743cca902f5f789fd70911f2a2bf604121152d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f2639ec973f33bd2c0b92fb743cca902f5f789fd70911f2a2bf604121152d0", kill_on_drop: false }`
[INFO] [stdout] 14f2639ec973f33bd2c0b92fb743cca902f5f789fd70911f2a2bf604121152d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d41e502e362cbec26e79349b1b3d010ae9acacf416ce5edfca3f9c0516b90985
[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" "d41e502e362cbec26e79349b1b3d010ae9acacf416ce5edfca3f9c0516b90985", kill_on_drop: false }`
[INFO] [stderr]    Compiling nc v0.4.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/io_uring.rs:200:60
[INFO] [stdout]     |
[INFO] [stdout] 200 |         nc::io_uring_enter(self.fd, to_submit, nr_wait, 0, 0 as *const nc::sigset_t, 0)
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^ expected `&nc::sigset_t`, found *-ptr
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&nc::sigset_t`
[INFO] [stdout]              found raw pointer `*const nc::sigset_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/io_uring.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn submit(&mut self) -> Result<u32> {
[INFO] [stdout]     |                                 ----------- expected `std::result::Result<u32, i32>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 200 |         nc::io_uring_enter(self.fd, to_submit, nr_wait, 0, 0 as *const nc::sigset_t, 0)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `u32`, found `i32`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `std::result::Result<u32, _>`
[INFO] [stdout]                found enum `std::result::Result<i32, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/io_uring.rs:243:82
[INFO] [stdout]     |
[INFO] [stdout] 243 |                let ret =  nc::io_uring_enter(self.fd, to_submit, wait_nr, flags, sigmask, 0)?;
[INFO] [stdout]     |                                                                                  ^^^^^^^ expected `&nc::sigset_t`, found *-ptr
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&nc::sigset_t`
[INFO] [stdout]              found raw pointer `*const nc::sigset_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/io_uring.rs:244:27
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 if ret == to_submit {
[INFO] [stdout]     |                           ^^^^^^^^^ expected `i32`, found `u32`
[INFO] [stdout]     |
[INFO] [stdout] help: you can convert an `u32` to `i32` and panic if the converted value wouldn't fit
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 if ret == to_submit.try_into().unwrap() {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/io_uring.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 |                     to_submit = ret;
[INFO] [stdout]     |                                 ^^^ expected `u32`, found `i32`
[INFO] [stdout]     |
[INFO] [stdout] help: you can convert an `i32` to `u32` and panic if the converted value wouldn't fit
[INFO] [stdout]     |
[INFO] [stdout] 248 |                     to_submit = ret.try_into().unwrap();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nc`.
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d41e502e362cbec26e79349b1b3d010ae9acacf416ce5edfca3f9c0516b90985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41e502e362cbec26e79349b1b3d010ae9acacf416ce5edfca3f9c0516b90985", kill_on_drop: false }`
[INFO] [stdout] d41e502e362cbec26e79349b1b3d010ae9acacf416ce5edfca3f9c0516b90985