[INFO] fetching crate cstring 0.1.1...
[INFO] testing cstring-0.1.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate cstring 0.1.1 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate cstring 0.1.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cstring 0.1.1
[INFO] finished tweaking crates.io crate cstring 0.1.1
[INFO] tweaked toml for crates.io crate cstring 0.1.1 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8d6ccac6128ca1b1c522525529d718bbb259d164e137e0d1ea6c213d987bb34
[INFO] running `Command { std: "docker" "start" "-a" "b8d6ccac6128ca1b1c522525529d718bbb259d164e137e0d1ea6c213d987bb34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8d6ccac6128ca1b1c522525529d718bbb259d164e137e0d1ea6c213d987bb34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d6ccac6128ca1b1c522525529d718bbb259d164e137e0d1ea6c213d987bb34", kill_on_drop: false }`
[INFO] [stdout] b8d6ccac6128ca1b1c522525529d718bbb259d164e137e0d1ea6c213d987bb34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e6b5b4136cbae5fd6fa5b21e2c59937a7eedd79397cd65a14f6862dfae0e9a6
[INFO] running `Command { std: "docker" "start" "-a" "3e6b5b4136cbae5fd6fa5b21e2c59937a7eedd79397cd65a14f6862dfae0e9a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling cstring v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "3e6b5b4136cbae5fd6fa5b21e2c59937a7eedd79397cd65a14f6862dfae0e9a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6b5b4136cbae5fd6fa5b21e2c59937a7eedd79397cd65a14f6862dfae0e9a6", kill_on_drop: false }`
[INFO] [stdout] 3e6b5b4136cbae5fd6fa5b21e2c59937a7eedd79397cd65a14f6862dfae0e9a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e521797066a70a368f72f32f9d89eb8d1b37b0de5b38512aa4e3269f504b0d80
[INFO] running `Command { std: "docker" "start" "-a" "e521797066a70a368f72f32f9d89eb8d1b37b0de5b38512aa4e3269f504b0d80", kill_on_drop: false }`
[INFO] [stderr]    Compiling cstring v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stdout]   --> src/cstr_core.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate std;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0468`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cstring` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e521797066a70a368f72f32f9d89eb8d1b37b0de5b38512aa4e3269f504b0d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e521797066a70a368f72f32f9d89eb8d1b37b0de5b38512aa4e3269f504b0d80", kill_on_drop: false }`
[INFO] [stdout] e521797066a70a368f72f32f9d89eb8d1b37b0de5b38512aa4e3269f504b0d80