[INFO] crate uhyve 0.0.18 is already in cache
[INFO] testing uhyve-0.0.18 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate uhyve 0.0.18 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate uhyve 0.0.18 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate uhyve 0.0.18
[INFO] finished tweaking crates.io crate uhyve 0.0.18
[INFO] tweaked toml for crates.io crate uhyve 0.0.18 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate uhyve 0.0.18 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 42a202cfa71a5aa099a8c33dd7e154fb2e5cedb0d7e748e37c7ac0602d3e3123
[INFO] running `"docker" "start" "-a" "42a202cfa71a5aa099a8c33dd7e154fb2e5cedb0d7e748e37c7ac0602d3e3123"`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling mac_address v1.0.3
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling x86 v0.29.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bit_field v0.10.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling burst v0.0.2
[INFO] [stderr]    Compiling virtio-bindings v0.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling elf v0.0.10
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling tokio-executor v0.1.9
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.12
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling strum_macros v0.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling gdb-protocol v0.1.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling vmm-sys-util v0.3.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling aligned_alloc v0.1.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling kvm-bindings v0.2.0
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling kvm-ioctls v0.5.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.11
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.17
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.5
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling uhyve v0.0.18 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/linux/mod.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     static ref KVM: Kvm = { Kvm::new().unwrap() };
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:70:50
[INFO] [stderr]    |
[INFO] [stderr] 70 |     static ref MAC_ADDRESS: Mutex<Option<String>> = { Mutex::new(None) };
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reader`
[INFO] [stderr]   --> src/linux/uhyve.rs:35:2
[INFO] [stderr]    |
[INFO] [stderr] 35 |     reader: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `writer`
[INFO] [stderr]   --> src/linux/uhyve.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     writer: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `"docker" "inspect" "42a202cfa71a5aa099a8c33dd7e154fb2e5cedb0d7e748e37c7ac0602d3e3123"`
[INFO] running `"docker" "rm" "-f" "42a202cfa71a5aa099a8c33dd7e154fb2e5cedb0d7e748e37c7ac0602d3e3123"`
[INFO] [stdout] 42a202cfa71a5aa099a8c33dd7e154fb2e5cedb0d7e748e37c7ac0602d3e3123
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d63990cff5ee54c91aa81897b5444cbba75911020cdd81932b2396681fb53cf3
[INFO] running `"docker" "start" "-a" "d63990cff5ee54c91aa81897b5444cbba75911020cdd81932b2396681fb53cf3"`
[INFO] [stderr]    Compiling uhyve v0.0.18 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/linux/mod.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     static ref KVM: Kvm = { Kvm::new().unwrap() };
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:70:50
[INFO] [stderr]    |
[INFO] [stderr] 70 |     static ref MAC_ADDRESS: Mutex<Option<String>> = { Mutex::new(None) };
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reader`
[INFO] [stderr]   --> src/linux/uhyve.rs:35:2
[INFO] [stderr]    |
[INFO] [stderr] 35 |     reader: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `writer`
[INFO] [stderr]   --> src/linux/uhyve.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     writer: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.15s
[INFO] running `"docker" "inspect" "d63990cff5ee54c91aa81897b5444cbba75911020cdd81932b2396681fb53cf3"`
[INFO] running `"docker" "rm" "-f" "d63990cff5ee54c91aa81897b5444cbba75911020cdd81932b2396681fb53cf3"`
[INFO] [stdout] d63990cff5ee54c91aa81897b5444cbba75911020cdd81932b2396681fb53cf3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stdout] b5c937f4be1727c0e0ca7f092b69ccaea4e8325f1b0a91a69990e0b1d84898d4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b5c937f4be1727c0e0ca7f092b69ccaea4e8325f1b0a91a69990e0b1d84898d4"`
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/linux/mod.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     static ref KVM: Kvm = { Kvm::new().unwrap() };
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:70:50
[INFO] [stderr]    |
[INFO] [stderr] 70 |     static ref MAC_ADDRESS: Mutex<Option<String>> = { Mutex::new(None) };
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reader`
[INFO] [stderr]   --> src/linux/uhyve.rs:35:2
[INFO] [stderr]    |
[INFO] [stderr] 35 |     reader: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `writer`
[INFO] [stderr]   --> src/linux/uhyve.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     writer: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/uhyve-d8df6ff311b8285c
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test arch::x86::test_hwbreakpoints_dr7 ... ok
[INFO] [stdout] test gdb_parser::test_gdbfeature ... ok
[INFO] [stdout] test gdb_parser::test_gdbfeaturesupported ... ok
[INFO] [stdout] test gdb_parser::test_cond_or_command_list ... ok
[INFO] [stdout] test gdb_parser::test_parse_qrcmd ... ok
[INFO] [stdout] test gdb_parser::test_hex_value ... ok
[INFO] [stdout] test gdb_parser::test_parse_syscalls ... ok
[INFO] [stdout] test gdb_parser::test_parse_signals ... ok
[INFO] [stdout] test gdb_parser::test_parse_thread_id ... ok
[INFO] [stdout] test gdb_parser::test_parse_write_memory ... ok
[INFO] [stdout] test gdb_parser::test_parse_write_general_registers ... ok
[INFO] [stdout] test gdb_parser::test_parse_d_packets ... ok
[INFO] [stdout] test gdb_parser::test_parse_thread_id_element ... ok
[INFO] [stdout] test gdb_parser::test_parse_randomization ... ok
[INFO] [stdout] test gdb_parser::test_parse_write_register ... ok
[INFO] [stdout] test gdb_parser::test_parse_v_commands ... ok
[INFO] [stdout] test gdb_parser::test_query ... ok
[INFO] [stdout] test gdb_parser::test_thread_info ... ok
[INFO] [stdout] test gdb_parser::test_parse_write_memory_binary ... ok
[INFO] [stdout] test gdb_parser::test_thread_list ... ok
[INFO] [stdout] test gdb_parser::test_breakpoints ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b5c937f4be1727c0e0ca7f092b69ccaea4e8325f1b0a91a69990e0b1d84898d4"`
[INFO] running `"docker" "rm" "-f" "b5c937f4be1727c0e0ca7f092b69ccaea4e8325f1b0a91a69990e0b1d84898d4"`
[INFO] [stdout] b5c937f4be1727c0e0ca7f092b69ccaea4e8325f1b0a91a69990e0b1d84898d4