[INFO] crate ndless-sdl 0.1.8 is already in cache
[INFO] extracting crate ndless-sdl 0.1.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/ndless-sdl/0.1.8
[INFO] extracting crate ndless-sdl 0.1.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ndless-sdl/0.1.8
[INFO] validating manifest of ndless-sdl-0.1.8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ndless-sdl-0.1.8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ndless-sdl-0.1.8
[INFO] finished frobbing ndless-sdl-0.1.8
[INFO] frobbed toml for ndless-sdl-0.1.8 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ndless-sdl/0.1.8/Cargo.toml
[INFO] started frobbing ndless-sdl-0.1.8
[INFO] finished frobbing ndless-sdl-0.1.8
[INFO] frobbed toml for ndless-sdl-0.1.8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ndless-sdl/0.1.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ndless-sdl-0.1.8 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ndless-sdl/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2bba8376bdcf98c3e72c3bdc071429146665d39b270faf4e6f2c1e35d78add13
[INFO] running `"docker" "start" "-a" "2bba8376bdcf98c3e72c3bdc071429146665d39b270faf4e6f2c1e35d78add13"`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling ndless-static-vars v1.0.0
[INFO] [stderr]    Compiling cty v0.1.5
[INFO] [stderr]    Compiling cty v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr] error[E0412]: cannot find type `Vec` in this scope
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-static-vars-1.0.0/src/lib.rs:7:34
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static mut ARGUMENTS: Option<Vec<String>> = None;
[INFO] [stderr]   |                                  ^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alloc::prelude::v1::Vec;
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alloc::vec::Vec;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `String` in this scope
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-static-vars-1.0.0/src/lib.rs:7:38
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static mut ARGUMENTS: Option<Vec<String>> = None;
[INFO] [stderr]   |                                      ^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alloc::prelude::v1::String;
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alloc::string::String;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-static-vars-1.0.0/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(alloc)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'alloc_prelude'
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-static-vars-1.0.0/src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alloc::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/58935
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `ndless-static-vars`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2bba8376bdcf98c3e72c3bdc071429146665d39b270faf4e6f2c1e35d78add13"`
[INFO] running `"docker" "rm" "-f" "2bba8376bdcf98c3e72c3bdc071429146665d39b270faf4e6f2c1e35d78add13"`
[INFO] [stdout] 2bba8376bdcf98c3e72c3bdc071429146665d39b270faf4e6f2c1e35d78add13