[INFO] updating cached repository museun/rcc [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/museun/rcc [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/museun/rcc" "work/ex/beta-1.38-1/sources/1.37.0/gh/museun/rcc"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/museun/rcc'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/museun/rcc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/museun/rcc"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/museun/rcc'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8d53bc74192718a2c9dddf1ad8648da5eb7f5a91 [INFO] sha for GitHub repo museun/rcc: 8d53bc74192718a2c9dddf1ad8648da5eb7f5a91 [INFO] validating manifest of museun/rcc 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 museun/rcc 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 museun/rcc [INFO] finished frobbing museun/rcc [INFO] frobbed toml for museun/rcc written to work/ex/beta-1.38-1/sources/1.37.0/gh/museun/rcc/Cargo.toml [INFO] started frobbing museun/rcc [INFO] finished frobbing museun/rcc [INFO] frobbed toml for museun/rcc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/museun/rcc/Cargo.toml [INFO] crate museun/rcc 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 museun/rcc 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/museun/rcc:/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] d9c4efa0062ac158ad4e7f6a0c7c891da43047b7f2f5e4b27d1e76e658869456 [INFO] running `"docker" "start" "-a" "d9c4efa0062ac158ad4e7f6a0c7c891da43047b7f2f5e4b27d1e76e658869456"` [INFO] [stderr] Compiling rcc v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> build.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | / writeln!( [INFO] [stderr] 36 | | f, [INFO] [stderr] 37 | | r###"#[test] [INFO] [stderr] 38 | | fn test_{:04}() {{ [INFO] [stderr] ... | [INFO] [stderr] 46 | | n, source, expected, n, n [INFO] [stderr] 47 | | ); [INFO] [stderr] | |______^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> build.rs:77:5 [INFO] [stderr] | [INFO] [stderr] 77 | write!(f, "{}", "// nothing to see here"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `cyclomatic_complexity` [INFO] [stderr] --> src/semantics.rs:1:10 [INFO] [stderr] | [INFO] [stderr] 1 | #![allow(cyclomatic_complexity)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(nll)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/lexer.rs:238:32 [INFO] [stderr] | [INFO] [stderr] 238 | '0'...'7' => true, [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/lexer.rs:357:12 [INFO] [stderr] | [INFO] [stderr] 357 | '0'...'3' => Some(ch), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `rcc`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "d9c4efa0062ac158ad4e7f6a0c7c891da43047b7f2f5e4b27d1e76e658869456"` [INFO] running `"docker" "rm" "-f" "d9c4efa0062ac158ad4e7f6a0c7c891da43047b7f2f5e4b27d1e76e658869456"` [INFO] [stdout] d9c4efa0062ac158ad4e7f6a0c7c891da43047b7f2f5e4b27d1e76e658869456