[INFO] fetching crate io_bluetooth 0.1.0...
[INFO] testing io_bluetooth-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate io_bluetooth 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate io_bluetooth 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io_bluetooth 0.1.0
[INFO] finished tweaking crates.io crate io_bluetooth 0.1.0
[INFO] tweaked toml for crates.io crate io_bluetooth 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88546ef16359617be60580034dfb39febaa9f3ea956c6c580411353717a65466
[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" "88546ef16359617be60580034dfb39febaa9f3ea956c6c580411353717a65466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88546ef16359617be60580034dfb39febaa9f3ea956c6c580411353717a65466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88546ef16359617be60580034dfb39febaa9f3ea956c6c580411353717a65466", kill_on_drop: false }`
[INFO] [stdout] 88546ef16359617be60580034dfb39febaa9f3ea956c6c580411353717a65466
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3228d7dd96d286f6c28f2b9a0442589918cc502ba12670478608cef440caba44
[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" "3228d7dd96d286f6c28f2b9a0442589918cc502ba12670478608cef440caba44", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling libbluetooth v0.1.0
[INFO] [stderr]    Compiling io_bluetooth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn socket(&self) -> &Socket {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn into_socket(self) -> Socket {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:276:12
[INFO] [stdout]     |
[INFO] [stdout] 276 |     pub fn socket(&self) -> &Socket {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:280:12
[INFO] [stdout]     |
[INFO] [stdout] 280 |     pub fn into_socket(self) -> Socket {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.90s
[INFO] running `Command { std: "docker" "inspect" "3228d7dd96d286f6c28f2b9a0442589918cc502ba12670478608cef440caba44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3228d7dd96d286f6c28f2b9a0442589918cc502ba12670478608cef440caba44", kill_on_drop: false }`
[INFO] [stdout] 3228d7dd96d286f6c28f2b9a0442589918cc502ba12670478608cef440caba44
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06760308ce660ab6a78c01155f1700af62817d30e513d3b82a6d8c52f4618364
[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" "06760308ce660ab6a78c01155f1700af62817d30e513d3b82a6d8c52f4618364", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn socket(&self) -> &Socket {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn into_socket(self) -> Socket {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:276:12
[INFO] [stdout]     |
[INFO] [stdout] 276 |     pub fn socket(&self) -> &Socket {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:280:12
[INFO] [stdout]     |
[INFO] [stdout] 280 |     pub fn into_socket(self) -> Socket {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling io_bluetooth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn socket(&self) -> &Socket {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn into_socket(self) -> Socket {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:276:12
[INFO] [stdout]     |
[INFO] [stdout] 276 |     pub fn socket(&self) -> &Socket {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_socket`
[INFO] [stdout]    --> src/sys_common/bt.rs:280:12
[INFO] [stdout]     |
[INFO] [stdout] 280 |     pub fn into_socket(self) -> Socket {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "06760308ce660ab6a78c01155f1700af62817d30e513d3b82a6d8c52f4618364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06760308ce660ab6a78c01155f1700af62817d30e513d3b82a6d8c52f4618364", kill_on_drop: false }`
[INFO] [stdout] 06760308ce660ab6a78c01155f1700af62817d30e513d3b82a6d8c52f4618364
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 613a1f523182df3117a2396428d8f152bb3d2e1577aee65f5dfa557db4afd57e
[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" "613a1f523182df3117a2396428d8f152bb3d2e1577aee65f5dfa557db4afd57e", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn socket(&self) -> &Socket {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into_socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn into_socket(self) -> Socket {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:276:12
[INFO] [stderr]     |
[INFO] [stderr] 276 |     pub fn socket(&self) -> &Socket {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into_socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:280:12
[INFO] [stderr]     |
[INFO] [stderr] 280 |     pub fn into_socket(self) -> Socket {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn socket(&self) -> &Socket {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into_socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn into_socket(self) -> Socket {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:276:12
[INFO] [stderr]     |
[INFO] [stderr] 276 |     pub fn socket(&self) -> &Socket {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into_socket`
[INFO] [stderr]    --> src/sys_common/bt.rs:280:12
[INFO] [stderr]     |
[INFO] [stderr] 280 |     pub fn into_socket(self) -> Socket {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/io_bluetooth-4f0419b7f5e1ba52
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests io_bluetooth
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "613a1f523182df3117a2396428d8f152bb3d2e1577aee65f5dfa557db4afd57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "613a1f523182df3117a2396428d8f152bb3d2e1577aee65f5dfa557db4afd57e", kill_on_drop: false }`
[INFO] [stdout] 613a1f523182df3117a2396428d8f152bb3d2e1577aee65f5dfa557db4afd57e