[INFO] fetching crate bitcoinleveldb-comparator 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-comparator-0.1.16-alpha.0 against try#d809384186eaa72b56b7b956dcf0837de4a00262 for pr-114740
[INFO] extracting crate bitcoinleveldb-comparator 0.1.16-alpha.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-comparator 0.1.16-alpha.0 on toolchain d809384186eaa72b56b7b956dcf0837de4a00262
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d809384186eaa72b56b7b956dcf0837de4a00262" "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-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d809384186eaa72b56b7b956dcf0837de4a00262" "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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d809384186eaa72b56b7b956dcf0837de4a00262" "fetch" "--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: "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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+d809384186eaa72b56b7b956dcf0837de4a00262" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3957af9358d05f42a39651f28536da53c60e3cf84cd954de7cea9130346f4f79
[INFO] running `Command { std: "docker" "start" "-a" "3957af9358d05f42a39651f28536da53c60e3cf84cd954de7cea9130346f4f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3957af9358d05f42a39651f28536da53c60e3cf84cd954de7cea9130346f4f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3957af9358d05f42a39651f28536da53c60e3cf84cd954de7cea9130346f4f79", kill_on_drop: false }`
[INFO] [stdout] 3957af9358d05f42a39651f28536da53c60e3cf84cd954de7cea9130346f4f79
[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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+d809384186eaa72b56b7b956dcf0837de4a00262" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a899893c64008d378ba5c8f89221b347c390fd33c23453ed345fcc59b5058d8
[INFO] running `Command { std: "docker" "start" "-a" "2a899893c64008d378ba5c8f89221b347c390fd33c23453ed345fcc59b5058d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling gimli v0.27.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling object v0.31.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling cpp_common v0.5.8
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling dunce v1.0.4
[INFO] [stderr]    Compiling shell-words v0.1.0
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling sqlite3-src v0.2.12
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling os_str_bytes v6.5.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling cpp_build v0.5.8
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling addr2line v0.20.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling qttypes v0.2.9
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling cpp_macros v0.5.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling qmetaobject v0.2.9
[INFO] [stderr]    Compiling libc-stdhandle v0.1.0
[INFO] [stderr]    Compiling qt_macros v0.1.1
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]    Compiling qmetaobject_impl v0.2.9
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling ritual_common v0.4.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling sqlite3-sys v0.12.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling cpp v0.5.8
[INFO] [stderr]    Compiling openssl-sys v0.9.91
[INFO] [stderr]    Compiling cpp_core v0.6.0
[INFO] [stderr]    Compiling qt_ritual_common v0.4.0
[INFO] [stderr]    Compiling ritual_build v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling qt_ritual_build v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling delegate v0.7.0
[INFO] [stderr]    Compiling qt_core v0.5.0
[INFO] [stderr]    Compiling qt_gui v0.5.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling try-catch v0.2.2
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling deranged v0.3.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling libevent-sys v0.2.6
[INFO] [stderr]    Compiling poison v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling time v0.3.25
[INFO] [stderr]    Compiling shared-mutex v0.3.1
[INFO] [stderr]    Compiling modular-bitfield v0.11.2
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling quanta v0.9.3
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling sqlite3 v0.24.0
[INFO] [stderr]    Compiling sqlite v0.25.3
[INFO] [stderr]    Compiling serde-big-array v0.4.1
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling pnet_sys v0.31.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling atomic_float v0.1.0
[INFO] [stderr]    Compiling bitset v0.1.2
[INFO] [stderr]    Compiling const-default v1.0.0
[INFO] [stderr]    Compiling atomic v0.5.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling comparator v0.3.0
[INFO] [stderr]    Compiling time-point v0.1.1
[INFO] [stderr]    Compiling multiset v0.0.5
[INFO] [stderr]    Compiling integer-encoding v3.0.4
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling atomic-take v1.1.0
[INFO] [stderr]    Compiling libevent v0.1.0
[INFO] [stderr]     Checking siphasher v0.3.10
[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: 6 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "2a899893c64008d378ba5c8f89221b347c390fd33c23453ed345fcc59b5058d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a899893c64008d378ba5c8f89221b347c390fd33c23453ed345fcc59b5058d8", kill_on_drop: false }`
[INFO] [stdout] 2a899893c64008d378ba5c8f89221b347c390fd33c23453ed345fcc59b5058d8