[INFO] updating cached repository martin-t/sokoban-solver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/martin-t/sokoban-solver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/martin-t/sokoban-solver" "work/ex/beta-1.38-1/sources/1.37.0/gh/martin-t/sokoban-solver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/martin-t/sokoban-solver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/martin-t/sokoban-solver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martin-t/sokoban-solver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martin-t/sokoban-solver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b5148cd273603259b458262652005128f48449b8 [INFO] sha for GitHub repo martin-t/sokoban-solver: b5148cd273603259b458262652005128f48449b8 [INFO] validating manifest of martin-t/sokoban-solver 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 martin-t/sokoban-solver 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 martin-t/sokoban-solver [INFO] finished frobbing martin-t/sokoban-solver [INFO] frobbed toml for martin-t/sokoban-solver written to work/ex/beta-1.38-1/sources/1.37.0/gh/martin-t/sokoban-solver/Cargo.toml [INFO] started frobbing martin-t/sokoban-solver [INFO] finished frobbing martin-t/sokoban-solver [INFO] frobbed toml for martin-t/sokoban-solver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martin-t/sokoban-solver/Cargo.toml [INFO] crate martin-t/sokoban-solver 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] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing martin-t/sokoban-solver 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-0/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/martin-t/sokoban-solver:/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] 0dd6b85eb844a650c3fcdf9a78f0c8b4b9d1f24a3b8a47b4b40d36eb92f10596 [INFO] running `"docker" "start" "-a" "0dd6b85eb844a650c3fcdf9a78f0c8b4b9d1f24a3b8a47b4b40d36eb92f10596"` [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling quick-error v1.2.2 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling termcolor v1.0.4 [INFO] [stderr] Compiling encode_unicode v0.3.5 [INFO] [stderr] Compiling typed-arena v1.4.1 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling separator v0.4.1 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling humantime v1.2.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling csv-core v0.1.5 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling env_logger v0.6.1 [INFO] [stderr] Compiling csv v1.0.7 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling sokoban-solver v0.1.0 (/opt/crater/workdir) [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(crate_visibility_modifier)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(specialization)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | #![feature(stmt_expr_attributes)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `sokoban-solver`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "0dd6b85eb844a650c3fcdf9a78f0c8b4b9d1f24a3b8a47b4b40d36eb92f10596"` [INFO] running `"docker" "rm" "-f" "0dd6b85eb844a650c3fcdf9a78f0c8b4b9d1f24a3b8a47b4b40d36eb92f10596"` [INFO] [stdout] 0dd6b85eb844a650c3fcdf9a78f0c8b4b9d1f24a3b8a47b4b40d36eb92f10596