[INFO] fetching crate kronecker 0.1.0...
[INFO] testing kronecker-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate kronecker 0.1.0 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate kronecker 0.1.0 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 kronecker 0.1.0
[INFO] finished tweaking crates.io crate kronecker 0.1.0
[INFO] tweaked toml for crates.io crate kronecker 0.1.0 written to /workspace/builds/worker-30/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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 4c015c66f8a4e8dfc702e23ba5033328c3e007c2c23d4ea029136a54a768f749
[INFO] running `Command { std: "docker" "start" "-a" "4c015c66f8a4e8dfc702e23ba5033328c3e007c2c23d4ea029136a54a768f749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c015c66f8a4e8dfc702e23ba5033328c3e007c2c23d4ea029136a54a768f749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c015c66f8a4e8dfc702e23ba5033328c3e007c2c23d4ea029136a54a768f749", kill_on_drop: false }`
[INFO] [stdout] 4c015c66f8a4e8dfc702e23ba5033328c3e007c2c23d4ea029136a54a768f749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 50e47c2a284285969179add56d634d7af85027438011f270876ae33cc42add31
[INFO] running `Command { std: "docker" "start" "-a" "50e47c2a284285969179add56d634d7af85027438011f270876ae33cc42add31", kill_on_drop: false }`
[INFO] [stderr]    Compiling kronecker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `std::num::One`, `std::num::Zero`
[INFO] [stdout]  --> src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::num::{One, Zero};
[INFO] [stdout]   |                ^^^  ^^^^ no `Zero` in `num`
[INFO] [stdout]   |                |
[INFO] [stdout]   |                no `One` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(zero_one)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kronecker` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "50e47c2a284285969179add56d634d7af85027438011f270876ae33cc42add31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50e47c2a284285969179add56d634d7af85027438011f270876ae33cc42add31", kill_on_drop: false }`
[INFO] [stdout] 50e47c2a284285969179add56d634d7af85027438011f270876ae33cc42add31
