[INFO] updating cached repository gx-sdk/gx
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gx-sdk/gx
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gx-sdk/gx" "work/ex/beta-1.38-1/sources/1.37.0/gh/gx-sdk/gx"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gx-sdk/gx'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gx-sdk/gx" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gx-sdk/gx"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gx-sdk/gx'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51971bf377ac288d645976caab2442f255b86542
[INFO] sha for GitHub repo gx-sdk/gx: 51971bf377ac288d645976caab2442f255b86542
[INFO] validating manifest of gx-sdk/gx 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 gx-sdk/gx 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 gx-sdk/gx
[INFO] finished frobbing gx-sdk/gx
[INFO] frobbed toml for gx-sdk/gx written to work/ex/beta-1.38-1/sources/1.37.0/gh/gx-sdk/gx/Cargo.toml
[INFO] started frobbing gx-sdk/gx
[INFO] finished frobbing gx-sdk/gx
[INFO] frobbed toml for gx-sdk/gx written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gx-sdk/gx/Cargo.toml
[INFO] crate gx-sdk/gx 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 gx-sdk/gx against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gx-sdk/gx:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a03938b80477cfb2471ec4b8724a2082ccbfa63a4ed7496e7e1e5ca16b993e99
[INFO] running `"docker" "start" "-a" "a03938b80477cfb2471ec4b8724a2082ccbfa63a4ed7496e7e1e5ca16b993e99"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/gx.rs` was erroneously implicitly accepted for binary `gx`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gx v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]   --> src/frontend/lexer.rs:76:43
[INFO] [stderr]    |
[INFO] [stderr] 76 | impl<It: Iterator<Item = Result<char, io::CharsError>>> Lexer<It> {
[INFO] [stderr]    |                                           ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]    --> src/frontend/lexer.rs:399:43
[INFO] [stderr]     |
[INFO] [stderr] 399 | impl<It: Iterator<Item = Result<char, io::CharsError>>> Iterator for Lexer<It> {
[INFO] [stderr]     |                                           ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]   --> src/frontend/parser.rs:33:51
[INFO] [stderr]    |
[INFO] [stderr] 33 | impl<It: Iterator<Item = result::Result<char, io::CharsError>>> Parser<It> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stderr]   --> src/gx.rs:61:22
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn parse(ch: io::Chars<io::BufReader<fs::File>>) -> parser::Result<Input> {
[INFO] [stderr]    |                      ^^^^^ not found in `io`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 25 |     use std::str::Chars;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/gx.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![feature(io)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/frontend/lexer.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |         '0'...'9' => Ok(nib as u8 - '0' as u8),
[INFO] [stderr]    |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/frontend/lexer.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |         'a'...'f' => Ok(nib as u8 - 'a' as u8 + 10),
[INFO] [stderr]    |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/frontend/lexer.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |         'A'...'F' => Ok(nib as u8 - 'A' as u8 + 10),
[INFO] [stderr]    |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]   --> src/gx.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             use std::io::Read;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::io::BufReader<std::fs::File>` in the current scope
[INFO] [stderr]   --> src/gx.rs:95:62
[INFO] [stderr]    |
[INFO] [stderr] 95 |             let mut p = match parse(io::BufReader::new(file).chars()) {
[INFO] [stderr]    |                                                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `gx`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a03938b80477cfb2471ec4b8724a2082ccbfa63a4ed7496e7e1e5ca16b993e99"`
[INFO] running `"docker" "rm" "-f" "a03938b80477cfb2471ec4b8724a2082ccbfa63a4ed7496e7e1e5ca16b993e99"`
[INFO] [stdout] a03938b80477cfb2471ec4b8724a2082ccbfa63a4ed7496e7e1e5ca16b993e99