[INFO] updating cached repository soenkehahn/rust-macro-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/soenkehahn/rust-macro-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-macro-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-macro-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-macro-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-macro-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soenkehahn/rust-macro-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soenkehahn/rust-macro-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d1554c05f7653af7a9abad5319fd469d1aca49cb
[INFO] sha for GitHub repo soenkehahn/rust-macro-playground: d1554c05f7653af7a9abad5319fd469d1aca49cb
[INFO] validating manifest of soenkehahn/rust-macro-playground 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 soenkehahn/rust-macro-playground 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 soenkehahn/rust-macro-playground
[INFO] finished frobbing soenkehahn/rust-macro-playground
[INFO] frobbed toml for soenkehahn/rust-macro-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/soenkehahn/rust-macro-playground/Cargo.toml
[INFO] started frobbing soenkehahn/rust-macro-playground
[INFO] finished frobbing soenkehahn/rust-macro-playground
[INFO] frobbed toml for soenkehahn/rust-macro-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soenkehahn/rust-macro-playground/Cargo.toml
[INFO] crate soenkehahn/rust-macro-playground 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 soenkehahn/rust-macro-playground 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/soenkehahn/rust-macro-playground:/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] 66347d533e58d21f28eadbdc69dd468bda4df0a51345076a813eb1ca21199ef4
[INFO] running `"docker" "start" "-a" "66347d533e58d21f28eadbdc69dd468bda4df0a51345076a813eb1ca21199ef4"`
[INFO] [stderr]    Compiling rust-macros v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "66347d533e58d21f28eadbdc69dd468bda4df0a51345076a813eb1ca21199ef4"`
[INFO] running `"docker" "rm" "-f" "66347d533e58d21f28eadbdc69dd468bda4df0a51345076a813eb1ca21199ef4"`
[INFO] [stdout] 66347d533e58d21f28eadbdc69dd468bda4df0a51345076a813eb1ca21199ef4
[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/soenkehahn/rust-macro-playground:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] eab9e184d3837746d092105fa6f014e88c8ff1f54bac82143cc9bde43cfca24a
[INFO] running `"docker" "start" "-a" "eab9e184d3837746d092105fa6f014e88c8ff1f54bac82143cc9bde43cfca24a"`
[INFO] [stderr]    Compiling rust-macros v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "eab9e184d3837746d092105fa6f014e88c8ff1f54bac82143cc9bde43cfca24a"`
[INFO] running `"docker" "rm" "-f" "eab9e184d3837746d092105fa6f014e88c8ff1f54bac82143cc9bde43cfca24a"`
[INFO] [stdout] eab9e184d3837746d092105fa6f014e88c8ff1f54bac82143cc9bde43cfca24a
[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/soenkehahn/rust-macro-playground:/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" "test" "--frozen"`
[INFO] [stdout] de8fb86a3b557d1e859b5d4bc4894f766051f29e7126e40e1c9a2666ea08339e
[INFO] running `"docker" "start" "-a" "de8fb86a3b557d1e859b5d4bc4894f766051f29e7126e40e1c9a2666ea08339e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_macros-e153b6f99786c2ad
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test eval::test::allows_to_implement_apply ... ok
[INFO] [stdout] test eval::test::allows_to_implement_fst ... ok
[INFO] [stdout] test eval::test::make_variables_unique::does_not_use_existing_variables ... ok
[INFO] [stdout] test eval::test::proper_alpha_conversion ... ok
[INFO] [stdout] test eval::test::allows_to_implement_not_with_alpha_conversion ... ok
[INFO] [stdout] test parser::test::parses_chains_of_applications ... ok
[INFO] [stdout] test eval::test::make_variables_unique::works ... ok
[INFO] [stdout] test parser::test::parses_complex_terms ... ok
[INFO] [stdout] test parser::test::parses_functions_with_multiple_arguments ... ok
[INFO] [stdout] test parser::test::parses_lambdas ... ok
[INFO] [stdout] test parser::test::parses_parenthesis ... ok
[INFO] [stdout] test parser::test::parses_parenthesized_lambdas ... ok
[INFO] [stdout] test parser::test::parses_variables ... ok
[INFO] [stdout] test eval::test::allows_to_apply_not_three_times ... ok
[INFO] [stdout] test eval::test::allows_to_implement_not_without_alpha_conversion ... ok
[INFO] [stdout] test eval::test::does_terminate_on_free_variable_applications ... ok
[INFO] [stdout] test eval::test::evaluates_identity_function ... ok
[INFO] [stdout] test eval::test::get_used_variables::does_return_the_current_identifiers ... ok
[INFO] [stdout] test parser::test::parses_applications ... ok
[INFO] [stdout] test parser::test::parses_chains_of_applications_as_lambda_bodies ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "de8fb86a3b557d1e859b5d4bc4894f766051f29e7126e40e1c9a2666ea08339e"`
[INFO] running `"docker" "rm" "-f" "de8fb86a3b557d1e859b5d4bc4894f766051f29e7126e40e1c9a2666ea08339e"`
[INFO] [stdout] de8fb86a3b557d1e859b5d4bc4894f766051f29e7126e40e1c9a2666ea08339e