[INFO] updating cached repository vasily-kirichenko/regex_benchmark [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/vasily-kirichenko/regex_benchmark [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/vasily-kirichenko/regex_benchmark" "work/ex/beta-1.38-1/sources/1.37.0/gh/vasily-kirichenko/regex_benchmark"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vasily-kirichenko/regex_benchmark'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/vasily-kirichenko/regex_benchmark" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vasily-kirichenko/regex_benchmark"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vasily-kirichenko/regex_benchmark'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7aca2d1a5e38734e9e36f3f0f7cbb4a1fb2b24c0 [INFO] sha for GitHub repo vasily-kirichenko/regex_benchmark: 7aca2d1a5e38734e9e36f3f0f7cbb4a1fb2b24c0 [INFO] validating manifest of vasily-kirichenko/regex_benchmark 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 vasily-kirichenko/regex_benchmark 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 vasily-kirichenko/regex_benchmark [INFO] finished frobbing vasily-kirichenko/regex_benchmark [INFO] frobbed toml for vasily-kirichenko/regex_benchmark written to work/ex/beta-1.38-1/sources/1.37.0/gh/vasily-kirichenko/regex_benchmark/Cargo.toml [INFO] started frobbing vasily-kirichenko/regex_benchmark [INFO] finished frobbing vasily-kirichenko/regex_benchmark [INFO] frobbed toml for vasily-kirichenko/regex_benchmark written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vasily-kirichenko/regex_benchmark/Cargo.toml [INFO] crate vasily-kirichenko/regex_benchmark 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 vasily-kirichenko/regex_benchmark 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vasily-kirichenko/regex_benchmark:/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] 9728d129bf87739fb3a3cc981686b7f9730c8cc73002059c67cdaf65351f1326 [INFO] running `"docker" "start" "-a" "9728d129bf87739fb3a3cc981686b7f9730c8cc73002059c67cdaf65351f1326"` [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling itertools v0.7.4 [INFO] [stderr] Compiling thread_local v0.3.4 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Compiling backtrace v0.3.4 [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Compiling error-chain v0.11.0 [INFO] [stderr] Compiling regex v0.2.3 [INFO] [stderr] Compiling regex_benchmark v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(universal_impl_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `Write` is imported redundantly [INFO] [stderr] --> src/main.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 10 | use std::io::prelude::*; [INFO] [stderr] | ------------------- the item `Write` is already imported here [INFO] [stderr] ... [INFO] [stderr] 67 | use std::io::Write; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/main.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | / error_chain!{ [INFO] [stderr] 19 | | foreign_links { [INFO] [stderr] 20 | | Io(::std::io::Error); [INFO] [stderr] 21 | | Regex(::regex::Error); [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [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: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/main.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | / error_chain!{ [INFO] [stderr] 19 | | foreign_links { [INFO] [stderr] 20 | | Io(::std::io::Error); [INFO] [stderr] 21 | | Regex(::regex::Error); [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [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] 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 `regex_benchmark`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "9728d129bf87739fb3a3cc981686b7f9730c8cc73002059c67cdaf65351f1326"` [INFO] running `"docker" "rm" "-f" "9728d129bf87739fb3a3cc981686b7f9730c8cc73002059c67cdaf65351f1326"` [INFO] [stdout] 9728d129bf87739fb3a3cc981686b7f9730c8cc73002059c67cdaf65351f1326