[INFO] cloning repository https://github.com/twissel/iouring-echo-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twissel/iouring-echo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fiouring-echo-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fiouring-echo-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 424aedd17cfac99489f30f06661576ad2b10797f
[INFO] checking twissel/iouring-echo-server against master#cb06d12710575a0d7ff71d6fe108f3bcff4f9195 for pr-128425-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fiouring-echo-server" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twissel/iouring-echo-server on toolchain cb06d12710575a0d7ff71d6fe108f3bcff4f9195
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twissel/iouring-echo-server
[INFO] finished tweaking git repo https://github.com/twissel/iouring-echo-server
[INFO] tweaked toml for git repo https://github.com/twissel/iouring-echo-server written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/twissel/iouring-echo-server 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" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/twissel/iou`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded uring-sys v1.0.0-beta
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4b89005115d465627252adb37903c11bb63748411d2a4b7bd75650183246830
[INFO] running `Command { std: "docker" "start" "-a" "f4b89005115d465627252adb37903c11bb63748411d2a4b7bd75650183246830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4b89005115d465627252adb37903c11bb63748411d2a4b7bd75650183246830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b89005115d465627252adb37903c11bb63748411d2a4b7bd75650183246830", kill_on_drop: false }`
[INFO] [stdout] f4b89005115d465627252adb37903c11bb63748411d2a4b7bd75650183246830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ec8505fc0eb4c6c933d80de7b3e13131ff688c268c883a097d2d6339acdbc6f
[INFO] running `Command { std: "docker" "start" "-a" "9ec8505fc0eb4c6c933d80de7b3e13131ff688c268c883a097d2d6339acdbc6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling uring-sys v1.0.0-beta
[INFO] [stderr]     Checking iou v0.2.0 (https://github.com/twissel/iou?branch=additional-methods#a9ea0ec4)
[INFO] [stderr]     Checking iouring-echo-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `bytes_wrote` is never read
[INFO] [stdout]    --> src/operation.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct ConnectionWriteReady {
[INFO] [stdout]     |            -------------------- field in this struct
[INFO] [stdout] 172 |     pub data: ConnectionData,
[INFO] [stdout] 173 |     pub bytes_wrote: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bytes_wrote` is never read
[INFO] [stdout]    --> src/operation.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct ConnectionWriteReady {
[INFO] [stdout]     |            -------------------- field in this struct
[INFO] [stdout] 172 |     pub data: ConnectionData,
[INFO] [stdout] 173 |     pub bytes_wrote: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/operation.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 | /             Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout] 206 | |                 self.write_buf.as_ptr() as *mut _,
[INFO] [stdout] 207 | |                 self.write_buf.len(),
[INFO] [stdout] 208 | |             ));
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |             let _ = Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/operation.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 | /             Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout] 210 | |                 self.read_buf.as_mut_ptr(),
[INFO] [stdout] 211 | |                 self.read_buf.len(),
[INFO] [stdout] 212 | |             ));
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 209 |             let _ = Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/operation.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 | /             Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout] 206 | |                 self.write_buf.as_ptr() as *mut _,
[INFO] [stdout] 207 | |                 self.write_buf.len(),
[INFO] [stdout] 208 | |             ));
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |             let _ = Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/operation.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 | /             Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout] 210 | |                 self.read_buf.as_mut_ptr(),
[INFO] [stdout] 211 | |                 self.read_buf.len(),
[INFO] [stdout] 212 | |             ));
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 209 |             let _ = Box::<[u8]>::from_raw(slice::from_raw_parts_mut(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `Command { std: "docker" "inspect" "9ec8505fc0eb4c6c933d80de7b3e13131ff688c268c883a097d2d6339acdbc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec8505fc0eb4c6c933d80de7b3e13131ff688c268c883a097d2d6339acdbc6f", kill_on_drop: false }`
[INFO] [stdout] 9ec8505fc0eb4c6c933d80de7b3e13131ff688c268c883a097d2d6339acdbc6f
