[INFO] fetching crate starling 4.0.0...
[INFO] checking starling-4.0.0 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate starling 4.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate starling 4.0.0
[INFO] finished tweaking crates.io crate starling 4.0.0
[INFO] tweaked toml for crates.io crate starling 4.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate starling 4.0.0 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate starling 4.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded whirlpool v0.10.1
[INFO] [stderr]   Downloaded sha-1 v0.10.0
[INFO] [stderr]   Downloaded keccak v0.1.2
[INFO] [stderr]   Downloaded serde v1.0.138
[INFO] [stderr]   Downloaded serde_derive v1.0.138
[INFO] [stderr]   Downloaded md2 v0.10.1
[INFO] [stderr]   Downloaded ripemd v0.1.1
[INFO] [stderr]   Downloaded semver v1.0.12
[INFO] [stderr]   Downloaded openssl-sys v0.9.74
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.9
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.10
[INFO] [stderr]   Downloaded libloading v0.7.3
[INFO] [stderr]   Downloaded clang-sys v1.3.3
[INFO] [stderr]   Downloaded hashbrown v0.12.1
[INFO] [stderr]   Downloaded md4 v0.10.1
[INFO] [stderr]   Downloaded iter-read v0.3.1
[INFO] [stderr]   Downloaded serde-pickle v1.1.1
[INFO] [stderr]   Downloaded groestl v0.10.1
[INFO] [stderr]   Downloaded crypto-common v0.1.4
[INFO] [stderr]   Downloaded sha3 v0.10.1
[INFO] [stderr]   Downloaded zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]   Downloaded librocksdb-sys v0.6.1+6.28.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af709189b1d0b25f85bdc64a5625401ff5712c6f3921a25d2c028a525c598749
[INFO] running `Command { std: "docker" "start" "-a" "af709189b1d0b25f85bdc64a5625401ff5712c6f3921a25d2c028a525c598749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af709189b1d0b25f85bdc64a5625401ff5712c6f3921a25d2c028a525c598749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af709189b1d0b25f85bdc64a5625401ff5712c6f3921a25d2c028a525c598749", kill_on_drop: false }`
[INFO] [stdout] af709189b1d0b25f85bdc64a5625401ff5712c6f3921a25d2c028a525c598749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8b8fd3df1634e375f0a8c02f5df0470d6e561c3fe3b710a657c9662daf5246e
[INFO] running `Command { std: "docker" "start" "-a" "e8b8fd3df1634e375f0a8c02f5df0470d6e561c3fe3b710a657c9662daf5246e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling semver v1.0.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling starling v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_json v1.0.82
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]     --> src/merkle_bit.rs:1081:14
[INFO] [stdout]      |
[INFO] [stdout] 1081 |         for &res in result.0 {
[INFO] [stdout]      |              ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]     --> src/merkle_bit.rs:1085:14
[INFO] [stdout]      |
[INFO] [stdout] 1085 |         for &res in result.1 {
[INFO] [stdout]      |              ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]     --> src/merkle_bit.rs:1111:14
[INFO] [stdout]      |
[INFO] [stdout] 1111 |         for &res in result.0 {
[INFO] [stdout]      |              ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]     --> src/merkle_bit.rs:1115:14
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         for &res in result.1 {
[INFO] [stdout]      |              ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.03s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "e8b8fd3df1634e375f0a8c02f5df0470d6e561c3fe3b710a657c9662daf5246e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b8fd3df1634e375f0a8c02f5df0470d6e561c3fe3b710a657c9662daf5246e", kill_on_drop: false }`
[INFO] [stdout] e8b8fd3df1634e375f0a8c02f5df0470d6e561c3fe3b710a657c9662daf5246e
