[INFO] fetching crate liverust_lib 0.1.23... [INFO] checking liverust_lib-0.1.23 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate liverust_lib 0.1.23 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate liverust_lib 0.1.23 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] started tweaking crates.io crate liverust_lib 0.1.23 [INFO] finished tweaking crates.io crate liverust_lib 0.1.23 [INFO] tweaked toml for crates.io crate liverust_lib 0.1.23 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 63 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bytes v0.5.6 (latest: v1.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding mio v0.6.23 (latest: v0.8.11) [INFO] [stderr] Adding miow v0.2.2 (latest: v0.6.0) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding pin-project-lite v0.1.12 (latest: v0.2.14) [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding synstructure v0.12.6 (latest: v0.13.1) [INFO] [stderr] Adding tokio v0.2.25 (latest: v1.37.0) [INFO] [stderr] Adding tokio-util v0.3.1 (latest: v0.7.10) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [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] 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bc491b8484931c7830d2386957b10d17df01ff2a564f52f40b208e6d448fb1dc [INFO] running `Command { std: "docker" "start" "-a" "bc491b8484931c7830d2386957b10d17df01ff2a564f52f40b208e6d448fb1dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bc491b8484931c7830d2386957b10d17df01ff2a564f52f40b208e6d448fb1dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc491b8484931c7830d2386957b10d17df01ff2a564f52f40b208e6d448fb1dc", kill_on_drop: false }` [INFO] [stdout] bc491b8484931c7830d2386957b10d17df01ff2a564f52f40b208e6d448fb1dc [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 14e50119cacae164099936812d3e3ed522578e4b4f3cd13e83adad5c75eb089d [INFO] running `Command { std: "docker" "start" "-a" "14e50119cacae164099936812d3e3ed522578e4b4f3cd13e83adad5c75eb089d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking gimli v0.28.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Checking rustc-demangle v0.1.23 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking miniz_oxide v0.7.2 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Checking addr2line v0.21.0 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking liverust_lib v0.1.23 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/netio/bytes_reader.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/netio/bytes_reader.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `prelude::*`, `stream::StreamExt`, `time::timeout` [INFO] [stdout] --> src/netio/bytes_reader.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | use tokio::{prelude::*, stream::StreamExt, time::timeout}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_util::codec::BytesCodec` [INFO] [stdout] --> src/netio/bytes_reader.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio_util::codec::BytesCodec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_util::codec::Framed` [INFO] [stdout] --> src/netio/bytes_reader.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use tokio_util::codec::Framed; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/netio/bytes_writer.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use rand; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `NetIOErrorValue` [INFO] [stdout] --> src/netio/bytes_errors.rs:3:38 [INFO] [stdout] | [INFO] [stdout] 3 | use super::netio_errors::{NetIOError,NetIOErrorValue}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::bytes_reader::BytesReader` [INFO] [stdout] --> src/netio/netio.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use super::bytes_reader::BytesReader; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::bytes_writer::BytesWriter` [INFO] [stdout] --> src/netio/netio.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::bytes_writer::BytesWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/netio/bytes_reader.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ByteOrder`, `ReadBytesExt` [INFO] [stdout] --> src/netio/netio.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use byteorder::{ByteOrder, ReadBytesExt}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/netio/bytes_reader.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/netio/netio.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `prelude::*`, `stream::StreamExt`, `time::timeout` [INFO] [stdout] --> src/netio/bytes_reader.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | use tokio::{prelude::*, stream::StreamExt, time::timeout}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_util::codec::BytesCodec` [INFO] [stdout] --> src/netio/bytes_reader.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio_util::codec::BytesCodec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `convert::TryInto`, `io` [INFO] [stdout] --> src/netio/netio.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | use std::{convert::TryInto, io}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_util::codec::Framed` [INFO] [stdout] --> src/netio/bytes_reader.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use tokio_util::codec::Framed; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/netio/bytes_writer.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use rand; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `NetIOErrorValue` [INFO] [stdout] --> src/netio/bytes_errors.rs:3:38 [INFO] [stdout] | [INFO] [stdout] 3 | use super::netio_errors::{NetIOError,NetIOErrorValue}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::bytes_reader::BytesReader` [INFO] [stdout] --> src/netio/netio.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use super::bytes_reader::BytesReader; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::bytes_writer::BytesWriter` [INFO] [stdout] --> src/netio/netio.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::bytes_writer::BytesWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ByteOrder`, `ReadBytesExt` [INFO] [stdout] --> src/netio/netio.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use byteorder::{ByteOrder, ReadBytesExt}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/netio/netio.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `convert::TryInto`, `io` [INFO] [stdout] --> src/netio/netio.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | use std::{convert::TryInto, io}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.13s [INFO] running `Command { std: "docker" "inspect" "14e50119cacae164099936812d3e3ed522578e4b4f3cd13e83adad5c75eb089d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14e50119cacae164099936812d3e3ed522578e4b4f3cd13e83adad5c75eb089d", kill_on_drop: false }` [INFO] [stdout] 14e50119cacae164099936812d3e3ed522578e4b4f3cd13e83adad5c75eb089d