[INFO] fetching crate liverust_lib 0.1.23...
[INFO] building liverust_lib-0.1.23 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate liverust_lib 0.1.23 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate liverust_lib 0.1.23 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b2359f2e53645d1c73d59ae0eacbc4968b49da97c1354495f74c51e88e0351e
[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" "4b2359f2e53645d1c73d59ae0eacbc4968b49da97c1354495f74c51e88e0351e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b2359f2e53645d1c73d59ae0eacbc4968b49da97c1354495f74c51e88e0351e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b2359f2e53645d1c73d59ae0eacbc4968b49da97c1354495f74c51e88e0351e", kill_on_drop: false }`
[INFO] [stdout] 4b2359f2e53645d1c73d59ae0eacbc4968b49da97c1354495f74c51e88e0351e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", 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] b9734a23c232bcb8e8f2ed0a62f02ae701697aed9f81eb7ef6172e3038da4496
[INFO] running `Command { std: "docker" "start" "-a" "b9734a23c232bcb8e8f2ed0a62f02ae701697aed9f81eb7ef6172e3038da4496", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.31s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b9734a23c232bcb8e8f2ed0a62f02ae701697aed9f81eb7ef6172e3038da4496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9734a23c232bcb8e8f2ed0a62f02ae701697aed9f81eb7ef6172e3038da4496", kill_on_drop: false }`
[INFO] [stdout] b9734a23c232bcb8e8f2ed0a62f02ae701697aed9f81eb7ef6172e3038da4496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", 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] cefed2e3679082809e86dbd4c958d9ca751e32fdc18d2deff5cb259422c9543b
[INFO] running `Command { std: "docker" "start" "-a" "cefed2e3679082809e86dbd4c958d9ca751e32fdc18d2deff5cb259422c9543b", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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: 11 warnings emitted
[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 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: 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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "cefed2e3679082809e86dbd4c958d9ca751e32fdc18d2deff5cb259422c9543b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefed2e3679082809e86dbd4c958d9ca751e32fdc18d2deff5cb259422c9543b", kill_on_drop: false }`
[INFO] [stdout] cefed2e3679082809e86dbd4c958d9ca751e32fdc18d2deff5cb259422c9543b
