[INFO] fetching crate simd 0.2.4...
[INFO] testing simd-0.2.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate simd 0.2.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate simd 0.2.4 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simd 0.2.4
[INFO] finished tweaking crates.io crate simd 0.2.4
[INFO] tweaked toml for crates.io crate simd 0.2.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 127146762b7f61f30283d0d9ef0a0f2e4cc5cbacbb7c4dd23cf1a01e93868b02
[INFO] running `Command { std: "docker" "start" "-a" "127146762b7f61f30283d0d9ef0a0f2e4cc5cbacbb7c4dd23cf1a01e93868b02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "127146762b7f61f30283d0d9ef0a0f2e4cc5cbacbb7c4dd23cf1a01e93868b02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "127146762b7f61f30283d0d9ef0a0f2e4cc5cbacbb7c4dd23cf1a01e93868b02", kill_on_drop: false }`
[INFO] [stdout] 127146762b7f61f30283d0d9ef0a0f2e4cc5cbacbb7c4dd23cf1a01e93868b02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b7ab436b56001960aee4da1fc7a9aa31cc4d67fe6e7853acc84ac93f01ec0dc
[INFO] running `Command { std: "docker" "start" "-a" "1b7ab436b56001960aee4da1fc7a9aa31cc4d67fe6e7853acc84ac93f01ec0dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling simd v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr] error: Cannot set `RUSTC_BOOTSTRAP=1` from build script of `simd v0.2.4 (/opt/rustwide/workdir)`.
[INFO] [stderr] note: Crates cannot set `RUSTC_BOOTSTRAP` themselves, as doing so would subvert the stability guarantees of Rust for your project.
[INFO] [stderr] help: If you're sure you want to do this in your project, set the environment variable `RUSTC_BOOTSTRAP=simd` before running cargo instead.
[INFO] running `Command { std: "docker" "inspect" "1b7ab436b56001960aee4da1fc7a9aa31cc4d67fe6e7853acc84ac93f01ec0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b7ab436b56001960aee4da1fc7a9aa31cc4d67fe6e7853acc84ac93f01ec0dc", kill_on_drop: false }`
[INFO] [stdout] 1b7ab436b56001960aee4da1fc7a9aa31cc4d67fe6e7853acc84ac93f01ec0dc