[INFO] fetching crate tun-sync 0.1.1...
[INFO] checking tun-sync-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tun-sync 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tun-sync 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tun-sync 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tun-sync 0.1.1
[INFO] tweaked toml for crates.io crate tun-sync 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate tun-sync 0.1.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded async-lock v3.1.0
[INFO] [stderr]   Downloaded value-bag v1.4.2
[INFO] [stderr]   Downloaded async-channel v2.1.0
[INFO] [stderr]   Downloaded event-listener-strategy v0.3.0
[INFO] [stderr]   Downloaded ioctl-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a2601dca7df0f2b8e10e56a1a44126e45234e4eff24b6bfca9a5db864fd3bfa
[INFO] running `Command { std: "docker" "start" "-a" "6a2601dca7df0f2b8e10e56a1a44126e45234e4eff24b6bfca9a5db864fd3bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a2601dca7df0f2b8e10e56a1a44126e45234e4eff24b6bfca9a5db864fd3bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a2601dca7df0f2b8e10e56a1a44126e45234e4eff24b6bfca9a5db864fd3bfa", kill_on_drop: false }`
[INFO] [stdout] 6a2601dca7df0f2b8e10e56a1a44126e45234e4eff24b6bfca9a5db864fd3bfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4960a527e72bb747f82222e0c5d0c574d9287b0eb80ffc8e6d69c9e89c7a15c2
[INFO] running `Command { std: "docker" "start" "-a" "4960a527e72bb747f82222e0c5d0c574d9287b0eb80ffc8e6d69c9e89c7a15c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking value-bag v1.4.2
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking concurrent-queue v2.3.0
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking event-listener v3.1.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking async-task v4.5.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking event-listener-strategy v0.3.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking ioctl-sys v0.6.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking futures-lite v2.0.1
[INFO] [stderr]     Checking async-channel v2.1.0
[INFO] [stderr]     Checking async-lock v3.1.0
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-executor v1.6.0
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking async-global-executor v2.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking tun-sync v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/platform/posix/fd.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | use libc::{self, fcntl, F_GETFL, F_SETFL, O_NONBLOCK};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/platform/posix/split.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use libc;
[INFO] [stdout]    |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/platform/linux/device.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/platform/linux/device.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use libc;
[INFO] [stdout]    |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/platform/posix/fd.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | use libc::{self, fcntl, F_GETFL, F_SETFL, O_NONBLOCK};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/platform/posix/split.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use libc;
[INFO] [stdout]    |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/platform/linux/device.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/platform/linux/device.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use libc;
[INFO] [stdout]    |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.61s
[INFO] running `Command { std: "docker" "inspect" "4960a527e72bb747f82222e0c5d0c574d9287b0eb80ffc8e6d69c9e89c7a15c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4960a527e72bb747f82222e0c5d0c574d9287b0eb80ffc8e6d69c9e89c7a15c2", kill_on_drop: false }`
[INFO] [stdout] 4960a527e72bb747f82222e0c5d0c574d9287b0eb80ffc8e6d69c9e89c7a15c2