[INFO] fetching crate bitcoinleveldb-comparator 0.1.12-alpha.0...
[INFO] checking bitcoinleveldb-comparator-0.1.12-alpha.0 against try#303604bb848977091b2fdfc36579c25e56c6889c for pr-108691
[INFO] extracting crate bitcoinleveldb-comparator 0.1.12-alpha.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-comparator 0.1.12-alpha.0 on toolchain 303604bb848977091b2fdfc36579c25e56c6889c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-comparator 0.1.12-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-comparator 0.1.12-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-comparator 0.1.12-alpha.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d345a985a1d767d0743f28298b3e026b5b8d569541154d62c28fadd2b6d1dc8
[INFO] running `Command { std: "docker" "start" "-a" "7d345a985a1d767d0743f28298b3e026b5b8d569541154d62c28fadd2b6d1dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d345a985a1d767d0743f28298b3e026b5b8d569541154d62c28fadd2b6d1dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d345a985a1d767d0743f28298b3e026b5b8d569541154d62c28fadd2b6d1dc8", kill_on_drop: false }`
[INFO] [stdout] 7d345a985a1d767d0743f28298b3e026b5b8d569541154d62c28fadd2b6d1dc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22d60fc0cb200c56cfc461140e95b38f496bfb729443c25b953666493fbddf9d
[INFO] running `Command { std: "docker" "start" "-a" "22d60fc0cb200c56cfc461140e95b38f496bfb729443c25b953666493fbddf9d", kill_on_drop: false }`
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[INFO] [stderr]     Checking libevent v0.1.0
[INFO] [stderr]     Checking bitcoin-imports v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-slice v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-status v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-util v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-comparator v0.1.12-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 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 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 00s
[INFO] running `Command { std: "docker" "inspect" "22d60fc0cb200c56cfc461140e95b38f496bfb729443c25b953666493fbddf9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22d60fc0cb200c56cfc461140e95b38f496bfb729443c25b953666493fbddf9d", kill_on_drop: false }`
[INFO] [stdout] 22d60fc0cb200c56cfc461140e95b38f496bfb729443c25b953666493fbddf9d