[INFO] updating cached repository marad/rusty-parens
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/marad/rusty-parens
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/marad/rusty-parens" "work/ex/beta-1.38-1/sources/1.37.0/gh/marad/rusty-parens"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/marad/rusty-parens'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/marad/rusty-parens" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/marad/rusty-parens"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/marad/rusty-parens'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 994c7028f1a17201774a71635b93f32ac92bffdd
[INFO] sha for GitHub repo marad/rusty-parens: 994c7028f1a17201774a71635b93f32ac92bffdd
[INFO] validating manifest of marad/rusty-parens 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 marad/rusty-parens 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 marad/rusty-parens
[INFO] finished frobbing marad/rusty-parens
[INFO] frobbed toml for marad/rusty-parens written to work/ex/beta-1.38-1/sources/1.37.0/gh/marad/rusty-parens/Cargo.toml
[INFO] started frobbing marad/rusty-parens
[INFO] finished frobbing marad/rusty-parens
[INFO] frobbed toml for marad/rusty-parens written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/marad/rusty-parens/Cargo.toml
[INFO] crate marad/rusty-parens 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 marad/rusty-parens 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/marad/rusty-parens:/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] dae99b069f7ae911c5c30c84e38508f1af01496288033b4c4e316d449c7c129a
[INFO] running `"docker" "start" "-a" "dae99b069f7ae911c5c30c84e38508f1af01496288033b4c4e316d449c7c129a"`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rusty-parens v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/scope.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn put(&mut self, name: &ToString, value: Expression) {
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn ToString`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Regular`
[INFO] [stderr]   --> src/reader.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Regular(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.51s
[INFO] running `"docker" "inspect" "dae99b069f7ae911c5c30c84e38508f1af01496288033b4c4e316d449c7c129a"`
[INFO] running `"docker" "rm" "-f" "dae99b069f7ae911c5c30c84e38508f1af01496288033b4c4e316d449c7c129a"`
[INFO] [stdout] dae99b069f7ae911c5c30c84e38508f1af01496288033b4c4e316d449c7c129a
[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/marad/rusty-parens:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 532a07c1a1109643bd64f08a56b508ccbffa2917830a07fb2840d8c46969f07f
[INFO] running `"docker" "start" "-a" "532a07c1a1109643bd64f08a56b508ccbffa2917830a07fb2840d8c46969f07f"`
[INFO] [stderr]    Compiling rusty-parens v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/scope.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn put(&mut self, name: &ToString, value: Expression) {
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn ToString`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Regular`
[INFO] [stderr]   --> src/reader.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Regular(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `"docker" "inspect" "532a07c1a1109643bd64f08a56b508ccbffa2917830a07fb2840d8c46969f07f"`
[INFO] running `"docker" "rm" "-f" "532a07c1a1109643bd64f08a56b508ccbffa2917830a07fb2840d8c46969f07f"`
[INFO] [stdout] 532a07c1a1109643bd64f08a56b508ccbffa2917830a07fb2840d8c46969f07f
[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/marad/rusty-parens:/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" "test" "--frozen"`
[INFO] [stdout] 4b0b5252a65aa2fa55ff3fcf94cf3504e9523f1362ab6c759069e78eba363af6
[INFO] running `"docker" "start" "-a" "4b0b5252a65aa2fa55ff3fcf94cf3504e9523f1362ab6c759069e78eba363af6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_parens-e91b8ab9a7d9ac48
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test eval::test::basic::identifiers::should_evaluate_identifiers ... ok
[INFO] [stdout] test eval::test::basic::functions::should_return_error_when_evaluating_empty_list ... ok
[INFO] [stdout] test eval::test::basic::functions::should_evaluate_functions ... ok
[INFO] [stdout] test eval::test::basic::should_eval_values_to_themselves ... ok
[INFO] [stdout] test eval::test::basic::functions::should_eval_function_args ... ok
[INFO] [stdout] test eval::test::basic::identifiers::should_return_proper_error_when_identifier_is_not_found ... ok
[INFO] [stdout] test reader::test::basic::should_read_float ... ok
[INFO] [stdout] test reader::test::basic::should_read_integer ... ok
[INFO] [stdout] test reader::test::basic::should_read_identifier ... ok
[INFO] [stdout] test reader::test::should_read_nested_lists ... ok
[INFO] [stdout] test tokenizer::test::basic::should_ignore_leading_whitespace ... ok
[INFO] [stdout] test tokenizer::test::basic::should_ignore_trailing_whitespace_when_reading_numbers ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_float ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_identifier ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_integer ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_string ... ok
[INFO] [stdout] test tokenizer::test::should_escape_string_characters ... ok
[INFO] [stdout] test tokenizer::test::should_read_function_call_with_arguments ... ok
[INFO] [stdout] test tokenizer::test::should_read_simple_function_call ... ok
[INFO] [stdout] test reader::test::basic::should_rad_list ... ok
[INFO] [stdout] test reader::test::basic::should_read_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4b0b5252a65aa2fa55ff3fcf94cf3504e9523f1362ab6c759069e78eba363af6"`
[INFO] running `"docker" "rm" "-f" "4b0b5252a65aa2fa55ff3fcf94cf3504e9523f1362ab6c759069e78eba363af6"`
[INFO] [stdout] 4b0b5252a65aa2fa55ff3fcf94cf3504e9523f1362ab6c759069e78eba363af6