[INFO] fetching crate dyn_sized 0.2.0...
[INFO] testing dyn_sized-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dyn_sized 0.2.0 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate dyn_sized 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dyn_sized 0.2.0
[INFO] finished tweaking crates.io crate dyn_sized 0.2.0
[INFO] tweaked toml for crates.io crate dyn_sized 0.2.0 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fn_move v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a7fab82782198c0461991af154de27c930b60efcd086f08dd65c710c9530ff6
[INFO] running `Command { std: "docker" "start" "-a" "1a7fab82782198c0461991af154de27c930b60efcd086f08dd65c710c9530ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a7fab82782198c0461991af154de27c930b60efcd086f08dd65c710c9530ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7fab82782198c0461991af154de27c930b60efcd086f08dd65c710c9530ff6", kill_on_drop: false }`
[INFO] [stdout] 1a7fab82782198c0461991af154de27c930b60efcd086f08dd65c710c9530ff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 233d783e8764dc73ae9426009befea8047c061c5ddc6b9ba8e1522045c9a7fd0
[INFO] running `Command { std: "docker" "start" "-a" "233d783e8764dc73ae9426009befea8047c061c5ddc6b9ba8e1522045c9a7fd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fn_move v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fn_move-0.1.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(fn_traits, unboxed_closures)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fn_move` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "233d783e8764dc73ae9426009befea8047c061c5ddc6b9ba8e1522045c9a7fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "233d783e8764dc73ae9426009befea8047c061c5ddc6b9ba8e1522045c9a7fd0", kill_on_drop: false }`
[INFO] [stdout] 233d783e8764dc73ae9426009befea8047c061c5ddc6b9ba8e1522045c9a7fd0