[INFO] updating cached repository jgall/rust_shell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jgall/rust_shell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jgall/rust_shell" "work/ex/beta-1.38-1/sources/1.37.0/gh/jgall/rust_shell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jgall/rust_shell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jgall/rust_shell" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jgall/rust_shell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jgall/rust_shell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78a21116d5a39faef58eb67029a8620af52d149e
[INFO] sha for GitHub repo jgall/rust_shell: 78a21116d5a39faef58eb67029a8620af52d149e
[INFO] validating manifest of jgall/rust_shell 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 jgall/rust_shell 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 jgall/rust_shell
[INFO] finished frobbing jgall/rust_shell
[INFO] frobbed toml for jgall/rust_shell written to work/ex/beta-1.38-1/sources/1.37.0/gh/jgall/rust_shell/Cargo.toml
[INFO] started frobbing jgall/rust_shell
[INFO] finished frobbing jgall/rust_shell
[INFO] frobbed toml for jgall/rust_shell written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jgall/rust_shell/Cargo.toml
[INFO] crate jgall/rust_shell 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jgall/rust_shell 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-6/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/jgall/rust_shell:/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] dd18f316f2935cf825c747518c9bd13a1d8cf65617a887d0e2f29bc608bd97f0
[INFO] running `"docker" "start" "-a" "dd18f316f2935cf825c747518c9bd13a1d8cf65617a887d0e2f29bc608bd97f0"`
[INFO] [stderr]    Compiling simple-error v0.1.12
[INFO] [stderr]    Compiling rust_shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             ["cd", args..] => {
[INFO] [stderr]    |                    ^^^^^^ help: try using the maximum value for the type: `args..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/main.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                       ^^^^^^ help: try using the maximum value for the type: `args..MAX`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             ["cd", args..] => {
[INFO] [stderr]    |                    ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:38:31
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 let new_dir = args.into_iter().peekable().peek().map_or("/", |x| *x);
[INFO] [stderr]    |                               ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                       ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:46:61
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                                                             ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             ["cd", args..] => {
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/main.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:28
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn run() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `rust_shell`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dd18f316f2935cf825c747518c9bd13a1d8cf65617a887d0e2f29bc608bd97f0"`
[INFO] running `"docker" "rm" "-f" "dd18f316f2935cf825c747518c9bd13a1d8cf65617a887d0e2f29bc608bd97f0"`
[INFO] [stdout] dd18f316f2935cf825c747518c9bd13a1d8cf65617a887d0e2f29bc608bd97f0