[INFO] fetching crate big-int 7.0.0...
[INFO] checking big-int-7.0.0 against 1.95.0 for pr-155915
[INFO] extracting crate big-int 7.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate big-int 7.0.0
[INFO] finished tweaking crates.io crate big-int 7.0.0
[INFO] tweaked toml for crates.io crate big-int 7.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate big-int 7.0.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded big-int-proc v1.5.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b5322f7c60e033db368863610d837d8da54aae85f6988148b69c9c5b84a3bea
[INFO] running `Command { std: "docker" "start" "-a" "2b5322f7c60e033db368863610d837d8da54aae85f6988148b69c9c5b84a3bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b5322f7c60e033db368863610d837d8da54aae85f6988148b69c9c5b84a3bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5322f7c60e033db368863610d837d8da54aae85f6988148b69c9c5b84a3bea", kill_on_drop: false }`
[INFO] [stdout] 2b5322f7c60e033db368863610d837d8da54aae85f6988148b69c9c5b84a3bea
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4160c03cfd8ebb98bc0058954c3355d06c4d2cde1c4b5010b51b68d577276429
[INFO] running `Command { std: "docker" "start" "-a" "4160c03cfd8ebb98bc0058954c3355d06c4d2cde1c4b5010b51b68d577276429", kill_on_drop: false }`
[INFO] [stderr]    Compiling big-int-proc v1.5.0
[INFO] [stderr]     Checking big-int v7.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NAddendSet` is never constructed
[INFO] [stdout]     --> src/lib.rs:1616:8
[INFO] [stdout]      |
[INFO] [stdout] 1616 | struct NAddendSet<const BASE: usize, B: BigInt<{ BASE }>> {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `NAddends` is never used
[INFO] [stdout]     --> src/lib.rs:1622:7
[INFO] [stdout]      |
[INFO] [stdout] 1622 | trait NAddends<const BASE: usize, B: BigInt<{ BASE }>> {
[INFO] [stdout]      |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/benches.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `big-int` (bench "benches") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `NAddendSet` is never constructed
[INFO] [stdout]     --> src/lib.rs:1616:8
[INFO] [stdout]      |
[INFO] [stdout] 1616 | struct NAddendSet<const BASE: usize, B: BigInt<{ BASE }>> {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `NAddends` is never used
[INFO] [stdout]     --> src/lib.rs:1622:7
[INFO] [stdout]      |
[INFO] [stdout] 1622 | trait NAddends<const BASE: usize, B: BigInt<{ BASE }>> {
[INFO] [stdout]      |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4160c03cfd8ebb98bc0058954c3355d06c4d2cde1c4b5010b51b68d577276429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4160c03cfd8ebb98bc0058954c3355d06c4d2cde1c4b5010b51b68d577276429", kill_on_drop: false }`
[INFO] [stdout] 4160c03cfd8ebb98bc0058954c3355d06c4d2cde1c4b5010b51b68d577276429
