[INFO] fetching crate desfire 0.2.0-alpha3...
[INFO] checking desfire-0.2.0-alpha3 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate desfire 0.2.0-alpha3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate desfire 0.2.0-alpha3 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate desfire 0.2.0-alpha3
[INFO] finished tweaking crates.io crate desfire 0.2.0-alpha3
[INFO] tweaked toml for crates.io crate desfire 0.2.0-alpha3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding aes v0.7.5 (latest: v0.8.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding block-modes v0.8.1 (latest: v0.9.1)
[INFO] [stderr]       Adding block-padding v0.2.1 (latest: v0.3.3)
[INFO] [stderr]       Adding cipher v0.3.0 (latest: v0.4.4)
[INFO] [stderr]       Adding des v0.7.0 (latest: v0.8.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding hex-literal v0.3.4 (latest: v0.4.1)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall_derive v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding num-derive v0.3.3 (latest: v0.4.2)
[INFO] [stderr]       Adding predicates v2.1.5 (latest: v3.1.2)
[INFO] [stderr]       Adding simple-error v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding termtree v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pcsc-sys v1.2.1
[INFO] [stderr]   Downloaded mockall v0.11.4
[INFO] [stderr]   Downloaded des v0.7.0
[INFO] [stderr]   Downloaded simple-error v0.2.3
[INFO] [stderr]   Downloaded predicates v2.1.5
[INFO] [stderr]   Downloaded pcsc v2.8.2
[INFO] [stderr]   Downloaded mockall_derive v0.11.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57b5f44ead53cad41dd90bdb192ff34985a8b589d5186ba26aa1a49f7423f80c
[INFO] running `Command { std: "docker" "start" "-a" "57b5f44ead53cad41dd90bdb192ff34985a8b589d5186ba26aa1a49f7423f80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57b5f44ead53cad41dd90bdb192ff34985a8b589d5186ba26aa1a49f7423f80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b5f44ead53cad41dd90bdb192ff34985a8b589d5186ba26aa1a49f7423f80c", kill_on_drop: false }`
[INFO] [stdout] 57b5f44ead53cad41dd90bdb192ff34985a8b589d5186ba26aa1a49f7423f80c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b39344d9e39eff6a30f5b1b0ec4fb033d3a661e2053b958e63665a3937cac38e
[INFO] running `Command { std: "docker" "start" "-a" "b39344d9e39eff6a30f5b1b0ec4fb033d3a661e2053b958e63665a3937cac38e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.2.13
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling pcsc-sys v1.2.1
[INFO] [stderr]     Checking pcsc v2.8.2
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]     Checking des v0.7.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking desfire v0.2.0-alpha3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/desfire/desfire.rs:1115:9
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         card.connect();
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         let _ = card.connect();
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/desfire/desfire.rs:1229:9
[INFO] [stdout]      |
[INFO] [stdout] 1229 |         card.connect();
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1229 |         let _ = card.connect();
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/desfire/desfire.rs:1237:9
[INFO] [stdout]      |
[INFO] [stdout] 1237 |         desfire.select_application(0x000000);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1237 |         let _ = desfire.select_application(0x000000);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.90s
[INFO] running `Command { std: "docker" "inspect" "b39344d9e39eff6a30f5b1b0ec4fb033d3a661e2053b958e63665a3937cac38e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b39344d9e39eff6a30f5b1b0ec4fb033d3a661e2053b958e63665a3937cac38e", kill_on_drop: false }`
[INFO] [stdout] b39344d9e39eff6a30f5b1b0ec4fb033d3a661e2053b958e63665a3937cac38e
[INFO] checking desfire-0.2.0-alpha3 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate desfire 0.2.0-alpha3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate desfire 0.2.0-alpha3 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate desfire 0.2.0-alpha3
[INFO] finished tweaking crates.io crate desfire 0.2.0-alpha3
[INFO] tweaked toml for crates.io crate desfire 0.2.0-alpha3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding aes v0.7.5 (latest: v0.8.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding block-modes v0.8.1 (latest: v0.9.1)
[INFO] [stderr]       Adding block-padding v0.2.1 (latest: v0.3.3)
[INFO] [stderr]       Adding cipher v0.3.0 (latest: v0.4.4)
[INFO] [stderr]       Adding des v0.7.0 (latest: v0.8.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding hex-literal v0.3.4 (latest: v0.4.1)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall_derive v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding num-derive v0.3.3 (latest: v0.4.2)
[INFO] [stderr]       Adding predicates v2.1.5 (latest: v3.1.2)
[INFO] [stderr]       Adding simple-error v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding termtree v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd7a0de1e5f417e10bc9a775b8b2fae03338b9b06b1186909873716acaeb1a4c
[INFO] running `Command { std: "docker" "start" "-a" "dd7a0de1e5f417e10bc9a775b8b2fae03338b9b06b1186909873716acaeb1a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd7a0de1e5f417e10bc9a775b8b2fae03338b9b06b1186909873716acaeb1a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7a0de1e5f417e10bc9a775b8b2fae03338b9b06b1186909873716acaeb1a4c", kill_on_drop: false }`
[INFO] [stdout] dd7a0de1e5f417e10bc9a775b8b2fae03338b9b06b1186909873716acaeb1a4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78673bc17e45ab27ebcf1355de83fbed1c2f2e32f4180fbdcef89062ef128d64
[INFO] running `Command { std: "docker" "start" "-a" "78673bc17e45ab27ebcf1355de83fbed1c2f2e32f4180fbdcef89062ef128d64", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.13
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling pcsc-sys v1.2.1
[INFO] [stderr]     Checking pcsc v2.8.2
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking des v0.7.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking desfire v0.2.0-alpha3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/desfire/desfire.rs:1115:9
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         card.connect();
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         let _ = card.connect();
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/desfire/desfire.rs:1229:9
[INFO] [stdout]      |
[INFO] [stdout] 1229 |         card.connect();
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1229 |         let _ = card.connect();
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/desfire/desfire.rs:1237:9
[INFO] [stdout]      |
[INFO] [stdout] 1237 |         desfire.select_application(0x000000);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1237 |         let _ = desfire.select_application(0x000000);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.04s
[INFO] running `Command { std: "docker" "inspect" "78673bc17e45ab27ebcf1355de83fbed1c2f2e32f4180fbdcef89062ef128d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78673bc17e45ab27ebcf1355de83fbed1c2f2e32f4180fbdcef89062ef128d64", kill_on_drop: false }`
[INFO] [stdout] 78673bc17e45ab27ebcf1355de83fbed1c2f2e32f4180fbdcef89062ef128d64