[INFO] fetching crate bitcoinleveldb-comparator 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-comparator-0.1.16-alpha.0 against master#b657dc555b1ecf837cc4ea471fbae6a731529d55 for pr-113457
[INFO] extracting crate bitcoinleveldb-comparator 0.1.16-alpha.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-comparator 0.1.16-alpha.0 on toolchain b657dc555b1ecf837cc4ea471fbae6a731529d55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-comparator 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-comparator 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-comparator 0.1.16-alpha.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8be812a18c68c777d63d615c06e0ddcb27db6c5cabe5d0be999528f906a5753a
[INFO] running `Command { std: "docker" "start" "-a" "8be812a18c68c777d63d615c06e0ddcb27db6c5cabe5d0be999528f906a5753a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8be812a18c68c777d63d615c06e0ddcb27db6c5cabe5d0be999528f906a5753a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be812a18c68c777d63d615c06e0ddcb27db6c5cabe5d0be999528f906a5753a", kill_on_drop: false }`
[INFO] [stdout] 8be812a18c68c777d63d615c06e0ddcb27db6c5cabe5d0be999528f906a5753a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e4a699d4dea02d7f3ab18b51061c27e9a7055206e7ec8600bcf85c49257390e
[INFO] running `Command { std: "docker" "start" "-a" "8e4a699d4dea02d7f3ab18b51061c27e9a7055206e7ec8600bcf85c49257390e", 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]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling qttypes v0.2.9
[INFO] [stderr]    Compiling cpp_macros v0.5.8
[INFO] [stderr]    Compiling libevent-sys v0.2.6
[INFO] [stderr]    Compiling qmetaobject v0.2.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking time v0.3.23
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking priority-queue v1.3.2
[INFO] [stderr]     Checking quanta v0.9.3
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking serde-big-array v0.4.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking atomic_float v0.1.0
[INFO] [stderr]     Checking time-point v0.1.1
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]     Checking const-default v1.0.0
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking atomic-take v1.1.0
[INFO] [stderr]     Checking bitset v0.1.2
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]     Checking comparator v0.3.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking multiset v0.0.5
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling cpp v0.5.8
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking libevent v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling qt_macros v0.1.1
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]    Compiling qmetaobject_impl v0.2.9
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling try-catch v0.2.2
[INFO] [stderr]    Compiling delegate v0.7.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling ritual_common v0.4.0
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling modular-bitfield v0.11.2
[INFO] [stderr]    Compiling ritual_build v0.4.0
[INFO] [stderr]    Compiling qt_ritual_common v0.4.0
[INFO] [stderr]    Compiling qt_ritual_build v0.5.0
[INFO] [stderr]    Compiling qt_core v0.5.0
[INFO] [stderr]    Compiling 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-slice v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-status v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-util v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-comparator v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/comparator.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         start: *mut String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `limit`
[INFO] [stdout]    --> src/comparator.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         limit: &Slice)  {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_`
[INFO] [stdout]    --> src/comparator.rs:148:36
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn find_short_successor(&self, key_: *mut String)  {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/comparator.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         a: &Slice,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/comparator.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |         b: &Slice) -> i32 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/comparator.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         start: *mut String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `limit`
[INFO] [stdout]    --> src/comparator.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         limit: &Slice)  {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_`
[INFO] [stdout]    --> src/comparator.rs:148:36
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn find_short_successor(&self, key_: *mut String)  {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/comparator.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         a: &Slice,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/comparator.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |         b: &Slice) -> i32 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "8e4a699d4dea02d7f3ab18b51061c27e9a7055206e7ec8600bcf85c49257390e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e4a699d4dea02d7f3ab18b51061c27e9a7055206e7ec8600bcf85c49257390e", kill_on_drop: false }`
[INFO] [stdout] 8e4a699d4dea02d7f3ab18b51061c27e9a7055206e7ec8600bcf85c49257390e