[INFO] fetching crate modVM 0.3.0...
[INFO] testing modVM-0.3.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate modVM 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate modVM 0.3.0 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 modVM 0.3.0
[INFO] finished tweaking crates.io crate modVM 0.3.0
[INFO] tweaked toml for crates.io crate modVM 0.3.0 written to /workspace/builds/worker-9/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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 83601e3d1bf951203119e8eafddf34c3319d8463c7d63494b3a562b5b31ea303
[INFO] running `Command { std: "docker" "start" "-a" "83601e3d1bf951203119e8eafddf34c3319d8463c7d63494b3a562b5b31ea303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83601e3d1bf951203119e8eafddf34c3319d8463c7d63494b3a562b5b31ea303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83601e3d1bf951203119e8eafddf34c3319d8463c7d63494b3a562b5b31ea303", kill_on_drop: false }`
[INFO] [stdout] 83601e3d1bf951203119e8eafddf34c3319d8463c7d63494b3a562b5b31ea303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 41f28b60e32557692b2ca86b441b7f7d384e8781115b561b613f2f59daa39665
[INFO] running `Command { std: "docker" "start" "-a" "41f28b60e32557692b2ca86b441b7f7d384e8781115b561b613f2f59daa39665", kill_on_drop: false }`
[INFO] [stderr]    Compiling modVM v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `modVM` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `mod_vm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_as_u128)]
[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 `modVM` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "41f28b60e32557692b2ca86b441b7f7d384e8781115b561b613f2f59daa39665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f28b60e32557692b2ca86b441b7f7d384e8781115b561b613f2f59daa39665", kill_on_drop: false }`
[INFO] [stdout] 41f28b60e32557692b2ca86b441b7f7d384e8781115b561b613f2f59daa39665
