[INFO] fetching crate bign256 0.13.0...
[INFO] checking bign256-0.13.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate bign256 0.13.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bign256 0.13.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bign256 0.13.0
[INFO] finished tweaking crates.io crate bign256 0.13.0
[INFO] tweaked toml for crates.io crate bign256 0.13.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded ciborium-io v0.2.2
[INFO] [stderr]   Downloaded ciborium-ll v0.2.2
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[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
[INFO] [stderr]   Downloaded unarray v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b13f8641e1e1ac0b8a4c27ed69c40750643141bef4cc27f4dd76c91957cc541d
[INFO] running `Command { std: "docker" "start" "-a" "b13f8641e1e1ac0b8a4c27ed69c40750643141bef4cc27f4dd76c91957cc541d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b13f8641e1e1ac0b8a4c27ed69c40750643141bef4cc27f4dd76c91957cc541d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b13f8641e1e1ac0b8a4c27ed69c40750643141bef4cc27f4dd76c91957cc541d", kill_on_drop: false }`
[INFO] [stdout] b13f8641e1e1ac0b8a4c27ed69c40750643141bef4cc27f4dd76c91957cc541d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c4ac211bf86b8fa250e96796b9bc88d5b7dd86af8f3443e4516c106b550dd05
[INFO] running `Command { std: "docker" "start" "-a" "4c4ac211bf86b8fa250e96796b9bc88d5b7dd86af8f3443e4516c106b550dd05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
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[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking bign256 v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
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[INFO] [stdout] error[E0432]: unresolved import `bign256::FieldElement`
[INFO] [stdout]  --> benches/field.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bign256::FieldElement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^ no `FieldElement` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bign256::elliptic_curve::Field`
[INFO] [stdout]  --> benches/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bign256::elliptic_curve::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bign256` (bench "field") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4c4ac211bf86b8fa250e96796b9bc88d5b7dd86af8f3443e4516c106b550dd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c4ac211bf86b8fa250e96796b9bc88d5b7dd86af8f3443e4516c106b550dd05", kill_on_drop: false }`
[INFO] [stdout] 4c4ac211bf86b8fa250e96796b9bc88d5b7dd86af8f3443e4516c106b550dd05
