[INFO] fetching crate usbd-ccid 0.2.0...
[INFO] checking usbd-ccid-0.2.0 against master#ac385a5af6d9fa8399a0cec799833cd28324abf8 for pr-125107
[INFO] extracting crate usbd-ccid 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate usbd-ccid 0.2.0 on toolchain ac385a5af6d9fa8399a0cec799833cd28324abf8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac385a5af6d9fa8399a0cec799833cd28324abf8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbd-ccid 0.2.0
[INFO] finished tweaking crates.io crate usbd-ccid 0.2.0
[INFO] tweaked toml for crates.io crate usbd-ccid 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac385a5af6d9fa8399a0cec799833cd28324abf8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding hash32 v0.2.1 (latest: v0.3.1)
[INFO] [stderr]       Adding heapless v0.7.17 (latest: v0.8.0)
[INFO] [stderr]       Adding interchange v0.2.2 (latest: v0.3.0)
[INFO] [stderr]       Adding num v0.3.1 (latest: v0.4.3)
[INFO] [stderr]       Adding num-complex v0.3.1 (latest: v0.4.6)
[INFO] [stderr]       Adding num-rational v0.3.2 (latest: v0.4.2)
[INFO] [stderr]       Adding usb-device v0.2.9 (latest: v0.3.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac385a5af6d9fa8399a0cec799833cd28324abf8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded delog v0.1.7
[INFO] [stderr]   Downloaded iso7816 v0.1.2
[INFO] [stderr]   Downloaded interchange v0.2.2
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+ac385a5af6d9fa8399a0cec799833cd28324abf8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08afa83a1623a90215f3b91a78fd3cf662b4641ae9ac9311d927bae559c8025e
[INFO] running `Command { std: "docker" "start" "-a" "08afa83a1623a90215f3b91a78fd3cf662b4641ae9ac9311d927bae559c8025e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08afa83a1623a90215f3b91a78fd3cf662b4641ae9ac9311d927bae559c8025e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08afa83a1623a90215f3b91a78fd3cf662b4641ae9ac9311d927bae559c8025e", kill_on_drop: false }`
[INFO] [stdout] 08afa83a1623a90215f3b91a78fd3cf662b4641ae9ac9311d927bae559c8025e
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+ac385a5af6d9fa8399a0cec799833cd28324abf8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f674f2c6e364652468cec0e055e8abc55399cc3989cf0d78747174cac1357cd
[INFO] running `Command { std: "docker" "start" "-a" "7f674f2c6e364652468cec0e055e8abc55399cc3989cf0d78747174cac1357cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling delog v0.1.7
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking interchange v0.2.2
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking embedded-time v0.12.1
[INFO] [stderr]     Checking iso7816 v0.1.2
[INFO] [stderr]     Checking usbd-ccid v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `slot` is never used
[INFO] [stdout]   --> src/types/packet.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait Packet: core::ops::Deref<Target = ExtPacket> {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] 24 |     #[inline]
[INFO] [stdout] 25 |     fn slot(&self) -> u8 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `slot` is never used
[INFO] [stdout]   --> src/types/packet.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait Packet: core::ops::Deref<Target = ExtPacket> {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] 24 |     #[inline]
[INFO] [stdout] 25 |     fn slot(&self) -> u8 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "7f674f2c6e364652468cec0e055e8abc55399cc3989cf0d78747174cac1357cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f674f2c6e364652468cec0e055e8abc55399cc3989cf0d78747174cac1357cd", kill_on_drop: false }`
[INFO] [stdout] 7f674f2c6e364652468cec0e055e8abc55399cc3989cf0d78747174cac1357cd