[INFO] updating cached repository archer884/roll
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/archer884/roll
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/roll" "work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/roll"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/roll'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/roll" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/roll"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/roll'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c953637842b9b03a7e0568a4bfdb169c473fd62
[INFO] sha for GitHub repo archer884/roll: 6c953637842b9b03a7e0568a4bfdb169c473fd62
[INFO] validating manifest of archer884/roll 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 archer884/roll 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 archer884/roll
[INFO] finished frobbing archer884/roll
[INFO] frobbed toml for archer884/roll written to work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/roll/Cargo.toml
[INFO] started frobbing archer884/roll
[INFO] finished frobbing archer884/roll
[INFO] frobbed toml for archer884/roll written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/roll/Cargo.toml
[INFO] crate archer884/roll already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/roll/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/archer884/dice.git`
[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] [stderr]     Updating git repository `https://github.com/archer884/dice.git`
[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 archer884/roll 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/roll:/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] 0a692c55a739a735d64efcbbd606c1ce6d49b000c312f09b32adef3a04617d7a
[INFO] running `"docker" "start" "-a" "0a692c55a739a735d64efcbbd606c1ce6d49b000c312f09b32adef3a04617d7a"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling dice v2.0.0 (https://github.com/archer884/dice.git#b514103f)
[INFO] [stderr]    Compiling roll v1.8.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rand::OsRng`
[INFO] [stderr]   --> src/app.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use rand::OsRng;
[INFO] [stderr]    |     ^^^^^^^^^^^ no `OsRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `next_u32` is not a member of trait `Rng`
[INFO] [stderr]   --> src/rng_provider.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | /     fn next_u32(&mut self) -> u32 {
[INFO] [stderr] 12 | |         match self {
[INFO] [stderr] 13 | |             &mut RngSource::Primary(ref mut source) => source.next_u32(),
[INFO] [stderr] 14 | |             &mut RngSource::Fallback(ref mut source) => source.next_u32(),
[INFO] [stderr] 15 | |         }
[INFO] [stderr] 16 | |     }
[INFO] [stderr]    | |_____^ not a member of trait `Rng`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Zero` in module `num`
[INFO] [stderr]  --> src/result.rs:6:55
[INFO] [stderr]   |
[INFO] [stderr] 6 |     type Value: ops::Add<Output = Self::Value> + num::Zero;
[INFO] [stderr]   |                                                       ^^^^ not found in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/app.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(iter_arith, zero_one)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/config.rs:48:19
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut buf = ::std::env::home_dir().unwrap();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0407, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `roll`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0a692c55a739a735d64efcbbd606c1ce6d49b000c312f09b32adef3a04617d7a"`
[INFO] running `"docker" "rm" "-f" "0a692c55a739a735d64efcbbd606c1ce6d49b000c312f09b32adef3a04617d7a"`
[INFO] [stdout] 0a692c55a739a735d64efcbbd606c1ce6d49b000c312f09b32adef3a04617d7a