[INFO] fetching crate mini-loader 1.2.2...
[INFO] testing mini-loader-1.2.2 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate mini-loader 1.2.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mini-loader 1.2.2
[INFO] finished tweaking crates.io crate mini-loader 1.2.2
[INFO] tweaked toml for crates.io crate mini-loader 1.2.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mini-loader 1.2.2 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mini-loader 1.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335
[INFO] running `Command { std: "docker" "start" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syscalls v0.8.1
[INFO] [stderr]    Compiling elf v0.8.0
[INFO] [stderr]    Compiling spinning_top v0.2.5
[INFO] [stderr]    Compiling linked_list_allocator v0.10.6
[INFO] [stderr]    Compiling elf_loader v0.15.0
[INFO] [stderr]    Compiling mini-loader v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mini-loader` (bin "mini-loader") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335", kill_on_drop: false }`
[INFO] [stdout] c0175fc89ab85a7de14f1c9e43b427a492b4c756b253b0daeb067d34943f9335
