[INFO] updating cached repository schultyy/pianolang-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/schultyy/pianolang-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/schultyy/pianolang-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/schultyy/pianolang-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/schultyy/pianolang-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/schultyy/pianolang-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/schultyy/pianolang-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/schultyy/pianolang-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 39d8f4148712050b3f640fa320138a1bc28ae3e0
[INFO] sha for GitHub repo schultyy/pianolang-rs: 39d8f4148712050b3f640fa320138a1bc28ae3e0
[INFO] validating manifest of schultyy/pianolang-rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of schultyy/pianolang-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing schultyy/pianolang-rs
[INFO] finished frobbing schultyy/pianolang-rs
[INFO] frobbed toml for schultyy/pianolang-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/schultyy/pianolang-rs/Cargo.toml
[INFO] started frobbing schultyy/pianolang-rs
[INFO] finished frobbing schultyy/pianolang-rs
[INFO] frobbed toml for schultyy/pianolang-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/schultyy/pianolang-rs/Cargo.toml
[INFO] crate schultyy/pianolang-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing schultyy/pianolang-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/schultyy/pianolang-rs:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 40e0cae82f22c8f02112daf6f289d9aa93a49c15e28e1e0282a344bc2c9693e8
[INFO] running `"docker" "start" "-a" "40e0cae82f22c8f02112daf6f289d9aa93a49c15e28e1e0282a344bc2c9693e8"`
[INFO] [stderr]    Compiling pianolang-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/traverser.rs:1:14
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parser::{self, AstNode, AstType};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Value`
[INFO] [stderr]   --> src/parser.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Value
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "40e0cae82f22c8f02112daf6f289d9aa93a49c15e28e1e0282a344bc2c9693e8"`
[INFO] running `"docker" "rm" "-f" "40e0cae82f22c8f02112daf6f289d9aa93a49c15e28e1e0282a344bc2c9693e8"`
[INFO] [stdout] 40e0cae82f22c8f02112daf6f289d9aa93a49c15e28e1e0282a344bc2c9693e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/schultyy/pianolang-rs:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f07c758103f0de883ce975f7e63656954808346c5709826168b96ff9e56b76fe
[INFO] running `"docker" "start" "-a" "f07c758103f0de883ce975f7e63656954808346c5709826168b96ff9e56b76fe"`
[INFO] [stderr]    Compiling pianolang-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/traverser.rs:1:14
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parser::{self, AstNode, AstType};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Value`
[INFO] [stderr]   --> src/parser.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Value
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "f07c758103f0de883ce975f7e63656954808346c5709826168b96ff9e56b76fe"`
[INFO] running `"docker" "rm" "-f" "f07c758103f0de883ce975f7e63656954808346c5709826168b96ff9e56b76fe"`
[INFO] [stdout] f07c758103f0de883ce975f7e63656954808346c5709826168b96ff9e56b76fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/schultyy/pianolang-rs:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 609b3f50607ad30bc02de4be16acab944231a95a8fe3e8a88e596f8bcb605f5a
[INFO] running `"docker" "start" "-a" "609b3f50607ad30bc02de4be16acab944231a95a8fe3e8a88e596f8bcb605f5a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pianolang_rs-2f13d5f8a3f8b91f
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test parser::tests::ast_right_node_type_is_number ... ok
[INFO] [stdout] test parser::tests::ast_right_node_is_number ... ok
[INFO] [stdout] test parser::tests::ast_left_node_type_is_number ... ok
[INFO] [stdout] test parser::tests::ast_left_node_is_number ... ok
[INFO] [stdout] test parser::tests::ast_has_multiply_type ... ok
[INFO] [stdout] test parser::tests::ast_has_division_type ... ok
[INFO] [stdout] test traverser::tests::traverse_division ... ok
[INFO] [stdout] test parser::tests::ast_has_addition_type ... ok
[INFO] [stdout] test traverser::tests::traverse_multiplication ... ok
[INFO] [stdout] test traverser::tests::traverse_subtraction ... ok
[INFO] [stdout] test parser::tests::returns_err_if_operator_is_unknown ... ok
[INFO] [stdout] test traverser::tests::traverse_addition ... ok
[INFO] [stdout] test parser::tests::ast_has_subtraction_type ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "609b3f50607ad30bc02de4be16acab944231a95a8fe3e8a88e596f8bcb605f5a"`
[INFO] running `"docker" "rm" "-f" "609b3f50607ad30bc02de4be16acab944231a95a8fe3e8a88e596f8bcb605f5a"`
[INFO] [stdout] 609b3f50607ad30bc02de4be16acab944231a95a8fe3e8a88e596f8bcb605f5a