[INFO] fetching crate bitcoinleveldb-sync 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-sync-0.1.16-alpha.0 against master#2dece5bb62f234f5622a08289c5a3d1555cd7843 for pr-132325
[INFO] extracting crate bitcoinleveldb-sync 0.1.16-alpha.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-sync 0.1.16-alpha.0 on toolchain 2dece5bb62f234f5622a08289c5a3d1555cd7843
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-sync 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-sync 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-sync 0.1.16-alpha.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 216 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07bd5bef305d48d2cf291984c5d7279cb311bc2e55b0da3ab6e36c7c890bfcc4
[INFO] running `Command { std: "docker" "start" "-a" "07bd5bef305d48d2cf291984c5d7279cb311bc2e55b0da3ab6e36c7c890bfcc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07bd5bef305d48d2cf291984c5d7279cb311bc2e55b0da3ab6e36c7c890bfcc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07bd5bef305d48d2cf291984c5d7279cb311bc2e55b0da3ab6e36c7c890bfcc4", kill_on_drop: false }`
[INFO] [stdout] 07bd5bef305d48d2cf291984c5d7279cb311bc2e55b0da3ab6e36c7c890bfcc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e34f0da637ce7454c74207d51973fa69d4165c4ac8b07207419fb5a61aff52c
[INFO] running `Command { std: "docker" "start" "-a" "2e34f0da637ce7454c74207d51973fa69d4165c4ac8b07207419fb5a61aff52c", kill_on_drop: false }`
[INFO] [stderr]    Compiling qt_core v0.5.0
[INFO] [stderr]    Compiling qmetaobject v0.2.10
[INFO] [stderr]     Checking qt_gui v0.5.0
[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-sync v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/mutexlock.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / /**
[INFO] [stdout] 2  | |   | Helper class that locks a mutex on construction
[INFO] [stdout] 3  | |   | and unlocks the mutex when the destructor
[INFO] [stdout] 4  | |   | of the MutexLock object is invoked.
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |   |
[INFO] [stdout] 16 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]   --> src/mutexlock.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn new(mu: *mut parking_lot::RawMutex) -> Self {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mu` is never read
[INFO] [stdout]   --> src/mutexlock.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct MutexLock {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 24 |     mu: *const parking_lot::RawMutex,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/mutexlock.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / /**
[INFO] [stdout] 2  | |   | Helper class that locks a mutex on construction
[INFO] [stdout] 3  | |   | and unlocks the mutex when the destructor
[INFO] [stdout] 4  | |   | of the MutexLock object is invoked.
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |   |
[INFO] [stdout] 16 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]   --> src/mutexlock.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn new(mu: *mut parking_lot::RawMutex) -> Self {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mu` is never read
[INFO] [stdout]   --> src/mutexlock.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct MutexLock {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 24 |     mu: *const parking_lot::RawMutex,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.28s
[INFO] running `Command { std: "docker" "inspect" "2e34f0da637ce7454c74207d51973fa69d4165c4ac8b07207419fb5a61aff52c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e34f0da637ce7454c74207d51973fa69d4165c4ac8b07207419fb5a61aff52c", kill_on_drop: false }`
[INFO] [stdout] 2e34f0da637ce7454c74207d51973fa69d4165c4ac8b07207419fb5a61aff52c