[INFO] updating cached repository ylambda/rust-tiny-interpreter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ylambda/rust-tiny-interpreter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ylambda/rust-tiny-interpreter" "work/ex/beta-1.37-6/sources/1.36.0/gh/ylambda/rust-tiny-interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ylambda/rust-tiny-interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ylambda/rust-tiny-interpreter" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ylambda/rust-tiny-interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ylambda/rust-tiny-interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3f0f310455586180b2013315146b20b3fcb2bd4c
[INFO] sha for GitHub repo ylambda/rust-tiny-interpreter: 3f0f310455586180b2013315146b20b3fcb2bd4c
[INFO] validating manifest of ylambda/rust-tiny-interpreter 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 ylambda/rust-tiny-interpreter 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 ylambda/rust-tiny-interpreter
[INFO] finished frobbing ylambda/rust-tiny-interpreter
[INFO] frobbed toml for ylambda/rust-tiny-interpreter written to work/ex/beta-1.37-6/sources/1.36.0/gh/ylambda/rust-tiny-interpreter/Cargo.toml
[INFO] started frobbing ylambda/rust-tiny-interpreter
[INFO] finished frobbing ylambda/rust-tiny-interpreter
[INFO] frobbed toml for ylambda/rust-tiny-interpreter written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ylambda/rust-tiny-interpreter/Cargo.toml
[INFO] crate ylambda/rust-tiny-interpreter 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ylambda/rust-tiny-interpreter/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ylambda/rust-tiny-interpreter against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ylambda/rust-tiny-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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a94fa81275133ebb67d2b17c31c15c706fae1fe3ac149c923d781003123de3df
[INFO] running `"docker" "start" "-a" "a94fa81275133ebb67d2b17c31c15c706fae1fe3ac149c923d781003123de3df"`
[INFO] [stderr]    Compiling lisp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Token`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Token {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tokenize`
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn tokenize(input: &str) -> Vec<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ASTRoot`
[INFO] [stderr]   --> src/main.rs:97:1
[INFO] [stderr]    |
[INFO] [stderr] 97 | struct ASTRoot {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ASTNode`
[INFO] [stderr]    --> src/main.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | struct ASTNode {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]    --> src/main.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | fn parse(tokens: &Vec<Token>) -> ASTRoot {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `traverse`
[INFO] [stderr]    --> src/main.rs:174:1
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn traverse(node: &ASTNode) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evaluate`
[INFO] [stderr]    --> src/main.rs:205:1
[INFO] [stderr]     |
[INFO] [stderr] 205 | fn evaluate(ast: ASTRoot) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "a94fa81275133ebb67d2b17c31c15c706fae1fe3ac149c923d781003123de3df"`
[INFO] running `"docker" "rm" "-f" "a94fa81275133ebb67d2b17c31c15c706fae1fe3ac149c923d781003123de3df"`
[INFO] [stdout] a94fa81275133ebb67d2b17c31c15c706fae1fe3ac149c923d781003123de3df
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ylambda/rust-tiny-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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9c175498e3d1135de188f3d39aabb6d78b61511e4b13ca4698402f00283b324b
[INFO] running `"docker" "start" "-a" "9c175498e3d1135de188f3d39aabb6d78b61511e4b13ca4698402f00283b324b"`
[INFO] [stderr]    Compiling lisp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "9c175498e3d1135de188f3d39aabb6d78b61511e4b13ca4698402f00283b324b"`
[INFO] running `"docker" "rm" "-f" "9c175498e3d1135de188f3d39aabb6d78b61511e4b13ca4698402f00283b324b"`
[INFO] [stdout] 9c175498e3d1135de188f3d39aabb6d78b61511e4b13ca4698402f00283b324b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ylambda/rust-tiny-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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5fbd581823021bfc2793ae1a167a155acb9eb59833df748f10c76125c8d41aad
[INFO] running `"docker" "start" "-a" "5fbd581823021bfc2793ae1a167a155acb9eb59833df748f10c76125c8d41aad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lisp-7427bbe03c52a47f
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test it_evaluates ... ok
[INFO] [stdout] test it_parses ... ok
[INFO] [stdout] test it_tokenizes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5fbd581823021bfc2793ae1a167a155acb9eb59833df748f10c76125c8d41aad"`
[INFO] running `"docker" "rm" "-f" "5fbd581823021bfc2793ae1a167a155acb9eb59833df748f10c76125c8d41aad"`
[INFO] [stdout] 5fbd581823021bfc2793ae1a167a155acb9eb59833df748f10c76125c8d41aad