[INFO] fetching crate vec_arith 1.0.4...
[INFO] testing vec_arith-1.0.4 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate vec_arith 1.0.4 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate vec_arith 1.0.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vec_arith 1.0.4
[INFO] finished tweaking crates.io crate vec_arith 1.0.4
[INFO] tweaked toml for crates.io crate vec_arith 1.0.4 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36048e180412d87aed514e77c5910a3d99aee6efa2b507a2fb95e3086ab65e67
[INFO] running `Command { std: "docker" "start" "-a" "36048e180412d87aed514e77c5910a3d99aee6efa2b507a2fb95e3086ab65e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36048e180412d87aed514e77c5910a3d99aee6efa2b507a2fb95e3086ab65e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36048e180412d87aed514e77c5910a3d99aee6efa2b507a2fb95e3086ab65e67", kill_on_drop: false }`
[INFO] [stdout] 36048e180412d87aed514e77c5910a3d99aee6efa2b507a2fb95e3086ab65e67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a46edda34bf4572b41f46ec5c7919a8863aff8fddc88269ffb3578f2bea1f205
[INFO] running `Command { std: "docker" "start" "-a" "a46edda34bf4572b41f46ec5c7919a8863aff8fddc88269ffb3578f2bea1f205", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec_arith v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![feature(clamp)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]     --> src/lib.rs:3889:6
[INFO] [stdout]      |
[INFO] [stdout] 3889 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vec_arith` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a46edda34bf4572b41f46ec5c7919a8863aff8fddc88269ffb3578f2bea1f205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46edda34bf4572b41f46ec5c7919a8863aff8fddc88269ffb3578f2bea1f205", kill_on_drop: false }`
[INFO] [stdout] a46edda34bf4572b41f46ec5c7919a8863aff8fddc88269ffb3578f2bea1f205
