[INFO] fetching crate tokio-uring 0.4.0... [INFO] checking tokio-uring-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate tokio-uring 0.4.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate tokio-uring 0.4.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml [INFO] started tweaking crates.io crate tokio-uring 0.4.0 [INFO] finished tweaking crates.io crate tokio-uring 0.4.0 [INFO] tweaked toml for crates.io crate tokio-uring 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate tokio-uring 0.4.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded fastrand v1.6.0 [INFO] [stderr] Downloaded tokio-test v0.4.2 [INFO] [stderr] Downloaded tokio-stream v0.1.8 [INFO] [stderr] Downloaded io-uring v0.5.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1bf2567f0979e9b31a0afff71ae3f6e77c19792237e6d8dc4d4f2b44cde8d6fb [INFO] running `Command { std: "docker" "start" "-a" "1bf2567f0979e9b31a0afff71ae3f6e77c19792237e6d8dc4d4f2b44cde8d6fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1bf2567f0979e9b31a0afff71ae3f6e77c19792237e6d8dc4d4f2b44cde8d6fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1bf2567f0979e9b31a0afff71ae3f6e77c19792237e6d8dc4d4f2b44cde8d6fb", kill_on_drop: false }` [INFO] [stdout] 1bf2567f0979e9b31a0afff71ae3f6e77c19792237e6d8dc4d4f2b44cde8d6fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17fb75295fdff7b3c95bddd8ba86feed78488ca8ce8c960b59a4989626047e70 [INFO] running `Command { std: "docker" "start" "-a" "17fb75295fdff7b3c95bddd8ba86feed78488ca8ce8c960b59a4989626047e70", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.85 [INFO] [stderr] Compiling crossbeam-utils v0.8.12 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling crossbeam-epoch v0.9.11 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling serde_json v1.0.87 [INFO] [stderr] Compiling quote v1.0.14 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Compiling futures-util v0.3.25 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking ciborium-io v0.2.0 [INFO] [stderr] Checking plotters-backend v0.3.4 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Compiling io-uring v0.5.8 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking textwrap v0.16.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking plotters-svg v0.3.3 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking ciborium-ll v0.2.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking clap v3.2.23 [INFO] [stderr] Checking fastrand v1.6.0 [INFO] [stderr] Checking iai v0.1.1 [INFO] [stderr] Checking mio v0.8.5 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking rayon-core v1.9.3 [INFO] [stderr] Checking plotters v0.3.4 [INFO] [stderr] Checking rayon v1.5.3 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking tokio-stream v0.1.8 [INFO] [stderr] Checking tokio-uring v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Box` is imported redundantly [INFO] [stdout] --> src/driver/accept.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{boxed::Box, io}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Box` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Box` is imported redundantly [INFO] [stdout] --> src/driver/recv_from.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | {boxed::Box, io, net::SocketAddr}, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Box` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Box` is imported redundantly [INFO] [stdout] --> src/driver/send_to.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | use std::{boxed::Box, io, net::SocketAddr}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Box` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/driver/op.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | Ignored(Box), [INFO] [stdout] | ------- ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 57 | Ignored(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling futures-macro v0.3.25 [INFO] [stderr] Compiling async-stream-impl v0.3.2 [INFO] [stderr] Checking async-stream v0.3.2 [INFO] [stderr] Checking tokio-test v0.4.2 [INFO] [stderr] Checking serde v1.0.136 [INFO] [stderr] Checking futures-executor v0.3.25 [INFO] [stderr] Checking futures v0.3.25 [INFO] [stderr] Checking ciborium v0.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stdout] warning: the item `Box` is imported redundantly [INFO] [stdout] --> src/driver/accept.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{boxed::Box, io}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Box` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Box` is imported redundantly [INFO] [stdout] --> src/driver/recv_from.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | {boxed::Box, io, net::SocketAddr}, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Box` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Box` is imported redundantly [INFO] [stdout] --> src/driver/send_to.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | use std::{boxed::Box, io, net::SocketAddr}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Box` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/driver/op.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | Ignored(Box), [INFO] [stdout] | ------- ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 57 | Ignored(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.65s [INFO] running `Command { std: "docker" "inspect" "17fb75295fdff7b3c95bddd8ba86feed78488ca8ce8c960b59a4989626047e70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17fb75295fdff7b3c95bddd8ba86feed78488ca8ce8c960b59a4989626047e70", kill_on_drop: false }` [INFO] [stdout] 17fb75295fdff7b3c95bddd8ba86feed78488ca8ce8c960b59a4989626047e70