[INFO] updating cached repository https://github.com/krishnakumar4a4/usb_com [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 64f4e47bacc3c08387e00589a2c2d40d682bb7d4 [INFO] checking krishnakumar4a4/usb_com against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Fusb_com" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/krishnakumar4a4/usb_com on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/krishnakumar4a4/usb_com [INFO] finished tweaking git repo https://github.com/krishnakumar4a4/usb_com [INFO] tweaked toml for git repo https://github.com/krishnakumar4a4/usb_com written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/krishnakumar4a4/usb_com already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c56696993efc4c5ad28d9525194786a46d15736af9d20770e49841eff7fd95a9 [INFO] running `"docker" "start" "-a" "c56696993efc4c5ad28d9525194786a46d15736af9d20770e49841eff7fd95a9"` [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Checking bit-vec v0.5.0 [INFO] [stderr] Checking bit-set v0.2.0 [INFO] [stderr] Compiling libusb-sys v0.2.3 [INFO] [stderr] Checking libusb v0.3.0 [INFO] [stderr] Checking usb_com v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut context = libusb::Context::new().unwrap(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | for mut device in context.devices().unwrap().iter() { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/list_devices.rs:19:19 [INFO] [stderr] | [INFO] [stderr] 19 | let context = try!(libusb::Context::new()); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/list_devices.rs:21:19 [INFO] [stderr] | [INFO] [stderr] 21 | for device in try!(context.devices()).iter() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut context = libusb::Context::new().unwrap(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | for mut device in context.devices().unwrap().iter() { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_wacom_device.rs:61:5 [INFO] [stderr] | [INFO] [stderr] 61 | try!(handle.reset()); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_wacom_device.rs:64:21 [INFO] [stderr] | [INFO] [stderr] 64 | let languages = try!(handle.read_languages(timeout)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_wacom_device.rs:66:42 [INFO] [stderr] | [INFO] [stderr] 66 | println!("Active configuration: {}", try!(handle.active_configuration())); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_wacom_device.rs:171:5 [INFO] [stderr] | [INFO] [stderr] 171 | try!(handle.claim_interface(endpoint.iface)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_device.rs:61:5 [INFO] [stderr] | [INFO] [stderr] 61 | try!(handle.reset()); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_device.rs:64:21 [INFO] [stderr] | [INFO] [stderr] 64 | let languages = try!(handle.read_languages(timeout)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_device.rs:66:42 [INFO] [stderr] | [INFO] [stderr] 66 | println!("Active configuration: {}", try!(handle.active_configuration())); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_device.rs:167:5 [INFO] [stderr] | [INFO] [stderr] 167 | try!(handle.set_active_configuration(endpoint.config)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_device.rs:168:5 [INFO] [stderr] | [INFO] [stderr] 168 | try!(handle.claim_interface(endpoint.iface)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> examples/read_device.rs:169:5 [INFO] [stderr] | [INFO] [stderr] 169 | try!(handle.set_alternate_setting(endpoint.iface, endpoint.setting)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/read_wacom_device.rs:132:17 [INFO] [stderr] | [INFO] [stderr] 132 | let mut buf = unsafe { slice::from_raw_parts_mut((&mut vec[..]).as_mut_ptr(), vec.capacity()) }; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/read_device.rs:132:17 [INFO] [stderr] | [INFO] [stderr] 132 | let mut buf = unsafe { slice::from_raw_parts_mut((&mut vec[..]).as_mut_ptr(), vec.capacity()) }; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.92s [INFO] running `"docker" "inspect" "c56696993efc4c5ad28d9525194786a46d15736af9d20770e49841eff7fd95a9"` [INFO] running `"docker" "rm" "-f" "c56696993efc4c5ad28d9525194786a46d15736af9d20770e49841eff7fd95a9"` [INFO] [stdout] c56696993efc4c5ad28d9525194786a46d15736af9d20770e49841eff7fd95a9