[INFO] fetching crate rust-adb 0.1.0...
[INFO] checking rust-adb-0.1.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate rust-adb 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rust-adb 0.1.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-adb 0.1.0
[INFO] finished tweaking crates.io crate rust-adb 0.1.0
[INFO] tweaked toml for crates.io crate rust-adb 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f268564dcff3d21c0294bab17a2dc9b044e9a398800097e0eec092a2fa2a04f0
[INFO] running `Command { std: "docker" "start" "-a" "f268564dcff3d21c0294bab17a2dc9b044e9a398800097e0eec092a2fa2a04f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f268564dcff3d21c0294bab17a2dc9b044e9a398800097e0eec092a2fa2a04f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f268564dcff3d21c0294bab17a2dc9b044e9a398800097e0eec092a2fa2a04f0", kill_on_drop: false }`
[INFO] [stdout] f268564dcff3d21c0294bab17a2dc9b044e9a398800097e0eec092a2fa2a04f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebcb035361f0e77668dc3dbc113fd3ee27e2b203a6816e6cd8bb713133a997b2
[INFO] running `Command { std: "docker" "start" "-a" "ebcb035361f0e77668dc3dbc113fd3ee27e2b203a6816e6cd8bb713133a997b2", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-adb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/adb_device/mod.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct SyncDeviceProtocol {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 32 |     pub length: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/adb_host/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct SyncHostResponse {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 27 |     pub length: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyncHostResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/adb_device/mod.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct SyncDeviceProtocol {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 32 |     pub length: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/adb_host/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct SyncHostResponse {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 27 |     pub length: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyncHostResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "ebcb035361f0e77668dc3dbc113fd3ee27e2b203a6816e6cd8bb713133a997b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebcb035361f0e77668dc3dbc113fd3ee27e2b203a6816e6cd8bb713133a997b2", kill_on_drop: false }`
[INFO] [stdout] ebcb035361f0e77668dc3dbc113fd3ee27e2b203a6816e6cd8bb713133a997b2