[INFO] fetching crate qemu_print 0.1.0...
[INFO] checking qemu_print-0.1.0 against try#742889a08e10036dc30b8a7308f2a2a15b706883 for pr-103450-1
[INFO] extracting crate qemu_print 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate qemu_print 0.1.0 on toolchain 742889a08e10036dc30b8a7308f2a2a15b706883
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qemu_print 0.1.0
[INFO] finished tweaking crates.io crate qemu_print 0.1.0
[INFO] tweaked toml for crates.io crate qemu_print 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8eee3ed57b135f8ffcd77935c2800f9f0866da07fd09e8ec8ccc3b8b173851d4
[INFO] running `Command { std: "docker" "start" "-a" "8eee3ed57b135f8ffcd77935c2800f9f0866da07fd09e8ec8ccc3b8b173851d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eee3ed57b135f8ffcd77935c2800f9f0866da07fd09e8ec8ccc3b8b173851d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eee3ed57b135f8ffcd77935c2800f9f0866da07fd09e8ec8ccc3b8b173851d4", kill_on_drop: false }`
[INFO] [stdout] 8eee3ed57b135f8ffcd77935c2800f9f0866da07fd09e8ec8ccc3b8b173851d4
[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=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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aa6e886132770e62ed233afd7ff79737cdd35d19b8476c74ba729a5ba2ba0ab
[INFO] running `Command { std: "docker" "start" "-a" "6aa6e886132770e62ed233afd7ff79737cdd35d19b8476c74ba729a5ba2ba0ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking volatile v0.4.5
[INFO] [stderr]     Checking conquer-util v0.3.0
[INFO] [stderr]     Checking conquer-once v0.3.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr] error: failed to run custom build command for `rustversion v1.0.9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustversion-1d0d367001aaa471/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: unexpected output from `rustc --version`: ""
[INFO] [stderr] 
[INFO] [stderr]   Please file an issue in https://github.com/dtolnay/rustversion
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6aa6e886132770e62ed233afd7ff79737cdd35d19b8476c74ba729a5ba2ba0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa6e886132770e62ed233afd7ff79737cdd35d19b8476c74ba729a5ba2ba0ab", kill_on_drop: false }`
[INFO] [stdout] 6aa6e886132770e62ed233afd7ff79737cdd35d19b8476c74ba729a5ba2ba0ab