[INFO] fetching crate eventfd 0.1.0...
[INFO] testing eventfd-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate eventfd 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate eventfd 0.1.0 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 crates.io crate eventfd 0.1.0
[INFO] finished tweaking crates.io crate eventfd 0.1.0
[INFO] tweaked toml for crates.io crate eventfd 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5ba0df5c6973833c7533c3b124af596abc23dbfad91b7e4cbe229db77b5661d5
[INFO] running `Command { std: "docker" "start" "-a" "5ba0df5c6973833c7533c3b124af596abc23dbfad91b7e4cbe229db77b5661d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ba0df5c6973833c7533c3b124af596abc23dbfad91b7e4cbe229db77b5661d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba0df5c6973833c7533c3b124af596abc23dbfad91b7e4cbe229db77b5661d5", kill_on_drop: false }`
[INFO] [stdout] 5ba0df5c6973833c7533c3b124af596abc23dbfad91b7e4cbe229db77b5661d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e6b9865ca7ea6e46b2d1eed2a40f3817d6728b82c2002977b6f6d30f7bd25269
[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" "e6b9865ca7ea6e46b2d1eed2a40f3817d6728b82c2002977b6f6d30f7bd25269", kill_on_drop: false }`
[INFO] [stderr]    Compiling eventfd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:57:62
[INFO] [stdout]    |
[INFO] [stdout] 57 |             libc::read(self.fd as c_int, ptr as *mut c_void, std::mem::size_of_val(&ret) as u64)
[INFO] [stdout]    |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `usize`, found `u64`
[INFO] [stdout]    |
[INFO] [stdout] help: you can convert a `u64` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 57 |             libc::read(self.fd as c_int, ptr as *mut c_void, (std::mem::size_of_val(&ret) as u64).try_into().unwrap())
[INFO] [stdout]    |                                                              +                                  +++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:71:65
[INFO] [stdout]    |
[INFO] [stdout] 71 |             libc::write(self.fd as c_int, ptr as *const c_void, std::mem::size_of_val(&val) as u64)
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `usize`, found `u64`
[INFO] [stdout]    |
[INFO] [stdout] help: you can convert a `u64` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 71 |             libc::write(self.fd as c_int, ptr as *const c_void, (std::mem::size_of_val(&val) as u64).try_into().unwrap())
[INFO] [stdout]    |                                                                 +                                  +++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eventfd` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e6b9865ca7ea6e46b2d1eed2a40f3817d6728b82c2002977b6f6d30f7bd25269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b9865ca7ea6e46b2d1eed2a40f3817d6728b82c2002977b6f6d30f7bd25269", kill_on_drop: false }`
[INFO] [stdout] e6b9865ca7ea6e46b2d1eed2a40f3817d6728b82c2002977b6f6d30f7bd25269