[INFO] fetching crate thinbox 0.1.4...
[INFO] testing thinbox-0.1.4 against 1.90.0 for beta-1.91-3
[INFO] extracting crate thinbox 0.1.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate thinbox 0.1.4
[INFO] finished tweaking crates.io crate thinbox 0.1.4
[INFO] tweaked toml for crates.io crate thinbox 0.1.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate thinbox 0.1.4 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d99f59e931c31f17fe81fb150529655058c990a1d7bd4253f5e7e0d892151e53
[INFO] running `Command { std: "docker" "start" "-a" "d99f59e931c31f17fe81fb150529655058c990a1d7bd4253f5e7e0d892151e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d99f59e931c31f17fe81fb150529655058c990a1d7bd4253f5e7e0d892151e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99f59e931c31f17fe81fb150529655058c990a1d7bd4253f5e7e0d892151e53", kill_on_drop: false }`
[INFO] [stdout] d99f59e931c31f17fe81fb150529655058c990a1d7bd4253f5e7e0d892151e53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aec6e9a505a9bf4514728a50fd955bb973c04b022e7a122acf332c96f1731b18
[INFO] running `Command { std: "docker" "start" "-a" "aec6e9a505a9bf4514728a50fd955bb973c04b022e7a122acf332c96f1731b18", kill_on_drop: false }`
[INFO] [stderr]    Compiling thinbox v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::raw`
[INFO] [stdout]    --> src/lib.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 | use std::raw::TraitObject;
[INFO] [stdout]     |          ^^^ could not find `raw` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(raw)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(unsize)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `raw`
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(raw)]
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `thinbox` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "aec6e9a505a9bf4514728a50fd955bb973c04b022e7a122acf332c96f1731b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec6e9a505a9bf4514728a50fd955bb973c04b022e7a122acf332c96f1731b18", kill_on_drop: false }`
[INFO] [stdout] aec6e9a505a9bf4514728a50fd955bb973c04b022e7a122acf332c96f1731b18