[INFO] updating cached repository VladYermakov/interpreter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/VladYermakov/interpreter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/VladYermakov/interpreter" "work/ex/beta-1.38-1/sources/1.37.0/gh/VladYermakov/interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/VladYermakov/interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/VladYermakov/interpreter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VladYermakov/interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VladYermakov/interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7269d722e714f053041e0db8e28d22865cc09fb9
[INFO] sha for GitHub repo VladYermakov/interpreter: 7269d722e714f053041e0db8e28d22865cc09fb9
[INFO] validating manifest of VladYermakov/interpreter 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 VladYermakov/interpreter 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 VladYermakov/interpreter
[INFO] finished frobbing VladYermakov/interpreter
[INFO] frobbed toml for VladYermakov/interpreter written to work/ex/beta-1.38-1/sources/1.37.0/gh/VladYermakov/interpreter/Cargo.toml
[INFO] started frobbing VladYermakov/interpreter
[INFO] finished frobbing VladYermakov/interpreter
[INFO] frobbed toml for VladYermakov/interpreter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VladYermakov/interpreter/Cargo.toml
[INFO] crate VladYermakov/interpreter 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 VladYermakov/interpreter 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/VladYermakov/interpreter:/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] c66ab8c4cdf62d82164a55834674e91190fd676ddea75e2aa5b75f4951e9efbb
[INFO] running `"docker" "start" "-a" "c66ab8c4cdf62d82164a55834674e91190fd676ddea75e2aa5b75f4951e9efbb"`
[INFO] [stderr]    Compiling interpreter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `node_type`
[INFO] [stderr]    --> src/main.rs:476:5
[INFO] [stderr]     |
[INFO] [stderr] 476 |     fn node_type(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_text`
[INFO] [stderr]    --> src/main.rs:641:5
[INFO] [stderr]     |
[INFO] [stderr] 641 |     fn with_text<T: Into<String> + Clone>(text: T) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_text`
[INFO] [stderr]     --> src/main.rs:1074:5
[INFO] [stderr]      |
[INFO] [stderr] 1074 |     fn with_text<T: Into<String> + Clone>(text: T) -> Self {
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inv`
[INFO] [stderr]   --> src/numbers/complex.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn inv(&self) -> Complex {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `"docker" "inspect" "c66ab8c4cdf62d82164a55834674e91190fd676ddea75e2aa5b75f4951e9efbb"`
[INFO] running `"docker" "rm" "-f" "c66ab8c4cdf62d82164a55834674e91190fd676ddea75e2aa5b75f4951e9efbb"`
[INFO] [stdout] c66ab8c4cdf62d82164a55834674e91190fd676ddea75e2aa5b75f4951e9efbb
[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/VladYermakov/interpreter:/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] bcf4070673539e0feca44fae92cac486533540546cc12ed07e81f84d02193dad
[INFO] running `"docker" "start" "-a" "bcf4070673539e0feca44fae92cac486533540546cc12ed07e81f84d02193dad"`
[INFO] [stderr]    Compiling interpreter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `node_type`
[INFO] [stderr]    --> src/main.rs:476:5
[INFO] [stderr]     |
[INFO] [stderr] 476 |     fn node_type(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `"docker" "inspect" "bcf4070673539e0feca44fae92cac486533540546cc12ed07e81f84d02193dad"`
[INFO] running `"docker" "rm" "-f" "bcf4070673539e0feca44fae92cac486533540546cc12ed07e81f84d02193dad"`
[INFO] [stdout] bcf4070673539e0feca44fae92cac486533540546cc12ed07e81f84d02193dad
[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/VladYermakov/interpreter:/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] a61c30ab754a4c04a280135c972245dd44179c2a6e9d149184c1b77a30ea144a
[INFO] running `"docker" "start" "-a" "a61c30ab754a4c04a280135c972245dd44179c2a6e9d149184c1b77a30ea144a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/interpreter-3d8259d04dcd24ca
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test numbers::tests::test_cross_types_mul ... ok
[INFO] [stdout] test numbers::tests::test_cross_types_div ... ok
[INFO] [stdout] test numbers::tests::test_if ... ok
[INFO] [stdout] test numbers::tests::test_integers ... ok
[INFO] [stdout] test numbers::tests::test_naturals ... ok
[INFO] [stdout] test numbers::tests::test_number_ops ... ok
[INFO] [stdout] test numbers::tests::test_rationals ... ok
[INFO] [stdout] test numbers::tests::test_real ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] test numbers::tests::test_assign_ops ... ok
[INFO] [stdout] test numbers::tests::test_complex ... ok
[INFO] [stdout] test tests::test_bad_numbers ... ok
[INFO] [stdout] test tests::test_conditions ... ok
[INFO] [stdout] test numbers::tests::test_default ... ok
[INFO] [stdout] test numbers::tests::test_cross_type_assign_ops ... ok
[INFO] [stdout] test numbers::tests::test_cross_types_sub ... ok
[INFO] [stdout] test numbers::tests::test_cross_types_add ... ok
[INFO] [stdout] test tests::test_long ... ok
[INFO] [stdout] test tests::test_function_with_arguments ... ok
[INFO] [stdout] test tests::test_function ... ok
[INFO] [stdout] test tests::test_add_with_spaces ... ok
[INFO] [stdout] test tests::test_div ... ok
[INFO] [stdout] test tests::test_if ... ok
[INFO] [stdout] test tests::test_mul ... ok
[INFO] [stdout] test tests::test_priority ... ok
[INFO] [stdout] test tests::test_sub ... ok
[INFO] [stdout] test tests::test_unary ... ok
[INFO] [stdout] test tests::test_parentheses ... ok
[INFO] [stdout] test tests::test_ops ... ok
[INFO] [stdout] test tests::test_multiline ... ok
[INFO] [stdout] test tests::test_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a61c30ab754a4c04a280135c972245dd44179c2a6e9d149184c1b77a30ea144a"`
[INFO] running `"docker" "rm" "-f" "a61c30ab754a4c04a280135c972245dd44179c2a6e9d149184c1b77a30ea144a"`
[INFO] [stdout] a61c30ab754a4c04a280135c972245dd44179c2a6e9d149184c1b77a30ea144a