[INFO] fetching crate optical-embeddings 0.3.0...
[INFO] checking optical-embeddings-0.3.0 against try#5d96fa0e954d77528204a1ba3b8847ec083c779b for pr-153457
[INFO] extracting crate optical-embeddings 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate optical-embeddings 0.3.0
[INFO] finished tweaking crates.io crate optical-embeddings 0.3.0
[INFO] tweaked toml for crates.io crate optical-embeddings 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate optical-embeddings 0.3.0 on toolchain 5d96fa0e954d77528204a1ba3b8847ec083c779b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate optical-embeddings 0.3.0 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" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 24c202e240f24708bf1422c03a9a87640ea93a760c73e505d93dd9d357a3360e
[INFO] running `Command { std: "docker" "start" "-a" "24c202e240f24708bf1422c03a9a87640ea93a760c73e505d93dd9d357a3360e", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "24c202e240f24708bf1422c03a9a87640ea93a760c73e505d93dd9d357a3360e", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: use of deprecated function `criterion::black_box`: use `std::hint::black_box()` instead
[INFO] [stdout]  --> benches/backends_comparison.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `criterion::black_box`: use `std::hint::black_box()` instead
[INFO] [stdout]   --> benches/backends_comparison.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 encoder.forward(black_box(input))
[INFO] [stdout]    |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stdout] a65594bdb43e5e7c10065db7c31673613bc1cafaa16c0dcde1fb046350a85e47
