[INFO] fetching crate bnf_sampler 0.3.8...
[INFO] checking bnf_sampler-0.3.8 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate bnf_sampler 0.3.8 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate bnf_sampler 0.3.8 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bnf_sampler 0.3.8
[INFO] finished tweaking crates.io crate bnf_sampler 0.3.8
[INFO] tweaked toml for crates.io crate bnf_sampler 0.3.8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding bit-set v0.5.3 (latest: v0.8.0)
[INFO] [stderr]       Adding bit-vec v0.6.3 (latest: v0.8.0)
[INFO] [stderr]       Adding itertools v0.12.1 (latest: v0.13.0)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (latest: v2.0.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 481a13bc43ac7110a5e00e663a8fc2d0e8038c0828493897d062d9732e50169e
[INFO] running `Command { std: "docker" "start" "-a" "481a13bc43ac7110a5e00e663a8fc2d0e8038c0828493897d062d9732e50169e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "481a13bc43ac7110a5e00e663a8fc2d0e8038c0828493897d062d9732e50169e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "481a13bc43ac7110a5e00e663a8fc2d0e8038c0828493897d062d9732e50169e", kill_on_drop: false }`
[INFO] [stdout] 481a13bc43ac7110a5e00e663a8fc2d0e8038c0828493897d062d9732e50169e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1e2f190bdd67c3ec7470bb3f05c079f557540ca6d0dab3f354f518ca15c229d
[INFO] running `Command { std: "docker" "start" "-a" "b1e2f190bdd67c3ec7470bb3f05c079f557540ca6d0dab3f354f518ca15c229d", kill_on_drop: false }`
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.39
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking qp-trie v0.8.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking mimalloc v0.1.43
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking bnf v0.5.0
[INFO] [stderr]     Checking bnf_sampler v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SliceU8Wrapper` is never constructed
[INFO] [stdout]   --> src/utils.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) struct SliceU8Wrapper<'a>(pub &'a [u8]);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SliceU8Wrapper` is never constructed
[INFO] [stdout]   --> src/utils.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) struct SliceU8Wrapper<'a>(pub &'a [u8]);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.43s
[INFO] running `Command { std: "docker" "inspect" "b1e2f190bdd67c3ec7470bb3f05c079f557540ca6d0dab3f354f518ca15c229d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e2f190bdd67c3ec7470bb3f05c079f557540ca6d0dab3f354f518ca15c229d", kill_on_drop: false }`
[INFO] [stdout] b1e2f190bdd67c3ec7470bb3f05c079f557540ca6d0dab3f354f518ca15c229d