[INFO] fetching crate rust_transformers 0.2.0...
[INFO] checking rust_transformers-0.2.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate rust_transformers 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rust_transformers 0.2.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_transformers 0.2.0
[INFO] finished tweaking crates.io crate rust_transformers 0.2.0
[INFO] tweaked toml for crates.io crate rust_transformers 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate rust_transformers 0.2.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unindent v0.1.5
[INFO] [stderr]   Downloaded smallvec v1.0.0
[INFO] [stderr]   Downloaded pyo3cls v0.8.3
[INFO] [stderr]   Downloaded indoc-impl v0.3.4
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[INFO] [stderr]   Downloaded ctor v0.1.12
[INFO] [stderr]   Downloaded rayon v1.2.1
[INFO] [stderr]   Downloaded indoc v0.3.4
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.0
[INFO] [stderr]   Downloaded rayon-core v1.6.1
[INFO] [stderr]   Downloaded ghost v0.1.1
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[INFO] [stderr]   Downloaded pyo3 v0.8.3
[INFO] [stderr]   Downloaded inventory v0.1.4
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.8.3
[INFO] [stderr]   Downloaded paste v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13a4443b7ed76bb949cf092f8b70ed975248dc7c03e58489d5541d8cd5e36207
[INFO] running `Command { std: "docker" "start" "-a" "13a4443b7ed76bb949cf092f8b70ed975248dc7c03e58489d5541d8cd5e36207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13a4443b7ed76bb949cf092f8b70ed975248dc7c03e58489d5541d8cd5e36207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a4443b7ed76bb949cf092f8b70ed975248dc7c03e58489d5541d8cd5e36207", kill_on_drop: false }`
[INFO] [stdout] 13a4443b7ed76bb949cf092f8b70ed975248dc7c03e58489d5541d8cd5e36207
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd10f2997422996ad1c3597350ff0adde8500aef646d9d8621d565d88ce211fb
[INFO] running `Command { std: "docker" "start" "-a" "cd10f2997422996ad1c3597350ff0adde8500aef646d9d8621d565d88ce211fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling ryu v1.0.2
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[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling regex-syntax v0.6.12
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[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling rayon-core v1.6.1
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[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling ctor v0.1.12
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[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]    Compiling paste-impl v0.1.6
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking paste v0.1.6
[INFO] [stderr]    Compiling pyo3cls v0.8.3
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]    Compiling pyo3 v0.8.3
[INFO] [stderr]     Checking rust_transformers v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]     --> src/preprocessing/tokenizer/tokenization_utils.rs:1295:38
[INFO] [stdout]      |
[INFO] [stdout] 1295 |             assert_eq!(ctrl_bpe(input.clone(), &bpe_pairs), *expected_output);
[INFO] [stdout]      |                                      ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.98s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: pyo3 v0.8.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "cd10f2997422996ad1c3597350ff0adde8500aef646d9d8621d565d88ce211fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd10f2997422996ad1c3597350ff0adde8500aef646d9d8621d565d88ce211fb", kill_on_drop: false }`
[INFO] [stdout] cd10f2997422996ad1c3597350ff0adde8500aef646d9d8621d565d88ce211fb