[INFO] fetching crate usb_hid_magstripe_reader 0.1.0...
[INFO] testing usb_hid_magstripe_reader-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate usb_hid_magstripe_reader 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate usb_hid_magstripe_reader 0.1.0
[INFO] finished tweaking crates.io crate usb_hid_magstripe_reader 0.1.0
[INFO] tweaked toml for crates.io crate usb_hid_magstripe_reader 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate usb_hid_magstripe_reader 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusb v0.9.4
[INFO] [stderr]   Downloaded libusb1-sys v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23cde0f122b52c525ed46f8914f5cb7762b5256bc164761a186a2a9ca1978783
[INFO] running `Command { std: "docker" "start" "-a" "23cde0f122b52c525ed46f8914f5cb7762b5256bc164761a186a2a9ca1978783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23cde0f122b52c525ed46f8914f5cb7762b5256bc164761a186a2a9ca1978783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23cde0f122b52c525ed46f8914f5cb7762b5256bc164761a186a2a9ca1978783", kill_on_drop: false }`
[INFO] [stdout] 23cde0f122b52c525ed46f8914f5cb7762b5256bc164761a186a2a9ca1978783
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5cb2de96915b3b04c25ce0c35a4b5539288adbd517a021cf8f6a00dec7fe910
[INFO] running `Command { std: "docker" "start" "-a" "a5cb2de96915b3b04c25ce0c35a4b5539288adbd517a021cf8f6a00dec7fe910", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling rusb v0.9.4
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling libusb1-sys v0.7.0
[INFO] [stderr]    Compiling usb_hid_magstripe_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut device_handle = rusb::open_device_with_vid_pid(vendor_id, product_id).expect("Cannot open the device");
[INFO] [stdout]     |             ----^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "a5cb2de96915b3b04c25ce0c35a4b5539288adbd517a021cf8f6a00dec7fe910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5cb2de96915b3b04c25ce0c35a4b5539288adbd517a021cf8f6a00dec7fe910", kill_on_drop: false }`
[INFO] [stdout] a5cb2de96915b3b04c25ce0c35a4b5539288adbd517a021cf8f6a00dec7fe910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b291ff712fdf047153d5f870319f14396e4836926a71757fde77710a2c76d14a
[INFO] running `Command { std: "docker" "start" "-a" "b291ff712fdf047153d5f870319f14396e4836926a71757fde77710a2c76d14a", kill_on_drop: false }`
[INFO] [stderr]    Compiling usb_hid_magstripe_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut device_handle = rusb::open_device_with_vid_pid(vendor_id, product_id).expect("Cannot open the device");
[INFO] [stdout]     |             ----^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut device_handle = rusb::open_device_with_vid_pid(vendor_id, product_id).expect("Cannot open the device");
[INFO] [stdout]     |             ----^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "b291ff712fdf047153d5f870319f14396e4836926a71757fde77710a2c76d14a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b291ff712fdf047153d5f870319f14396e4836926a71757fde77710a2c76d14a", kill_on_drop: false }`
[INFO] [stdout] b291ff712fdf047153d5f870319f14396e4836926a71757fde77710a2c76d14a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f42b07e6e40fb3be650e445a074d239ec36ae21f989b187557573043c79a3fc8
[INFO] running `Command { std: "docker" "start" "-a" "f42b07e6e40fb3be650e445a074d239ec36ae21f989b187557573043c79a3fc8", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let mut device_handle = rusb::open_device_with_vid_pid(vendor_id, product_id).expect("Cannot open the device");
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `usb_hid_magstripe_reader` (lib) generated 1 warning (run `cargo fix --lib -p usb_hid_magstripe_reader` to apply 1 suggestion)
[INFO] [stderr] warning: `usb_hid_magstripe_reader` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/usb_hid_magstripe_reader-a01df421f8c45334)
[INFO] [stderr]    Doc-tests usb_hid_magstripe_reader
[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; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f42b07e6e40fb3be650e445a074d239ec36ae21f989b187557573043c79a3fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42b07e6e40fb3be650e445a074d239ec36ae21f989b187557573043c79a3fc8", kill_on_drop: false }`
[INFO] [stdout] f42b07e6e40fb3be650e445a074d239ec36ae21f989b187557573043c79a3fc8