[INFO] updating cached repository bpandreotti/monkey-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bpandreotti/monkey-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bpandreotti/monkey-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/bpandreotti/monkey-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bpandreotti/monkey-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bpandreotti/monkey-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bpandreotti/monkey-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bpandreotti/monkey-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 94821c149da5a7094c4156f224d0160ecadef2f9
[INFO] sha for GitHub repo bpandreotti/monkey-rust: 94821c149da5a7094c4156f224d0160ecadef2f9
[INFO] validating manifest of bpandreotti/monkey-rust 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 bpandreotti/monkey-rust 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 bpandreotti/monkey-rust
[INFO] finished frobbing bpandreotti/monkey-rust
[INFO] frobbed toml for bpandreotti/monkey-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/bpandreotti/monkey-rust/Cargo.toml
[INFO] started frobbing bpandreotti/monkey-rust
[INFO] finished frobbing bpandreotti/monkey-rust
[INFO] frobbed toml for bpandreotti/monkey-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bpandreotti/monkey-rust/Cargo.toml
[INFO] crate bpandreotti/monkey-rust 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 bpandreotti/monkey-rust 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-7/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/bpandreotti/monkey-rust:/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] 8d23b3d0de5b88c59bb942dde1f85e331fe04d5ff763492ba3770caae357ff9d
[INFO] running `"docker" "start" "-a" "8d23b3d0de5b88c59bb942dde1f85e331fe04d5ff763492ba3770caae357ff9d"`
[INFO] [stderr]    Compiling rusty-monkey v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `PROMPT`
[INFO] [stderr]  --> src/repl.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const PROMPT: &str = "monkey » ";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `start`
[INFO] [stderr]  --> src/repl.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn start() -> Result<(), std::io::Error> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockStatement`
[INFO] [stderr]   --> src/ast.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     BlockStatement(Vec<Statement>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/parser.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Call,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "8d23b3d0de5b88c59bb942dde1f85e331fe04d5ff763492ba3770caae357ff9d"`
[INFO] running `"docker" "rm" "-f" "8d23b3d0de5b88c59bb942dde1f85e331fe04d5ff763492ba3770caae357ff9d"`
[INFO] [stdout] 8d23b3d0de5b88c59bb942dde1f85e331fe04d5ff763492ba3770caae357ff9d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/bpandreotti/monkey-rust:/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] ca90d262d7baa1f924f57b28eff6308e1b342e66baf276b00849608ead8dd62b
[INFO] running `"docker" "start" "-a" "ca90d262d7baa1f924f57b28eff6308e1b342e66baf276b00849608ead8dd62b"`
[INFO] [stderr]    Compiling rusty-monkey v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `PROMPT`
[INFO] [stderr]  --> src/repl.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const PROMPT: &str = "monkey » ";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `start`
[INFO] [stderr]  --> src/repl.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn start() -> Result<(), std::io::Error> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockStatement`
[INFO] [stderr]   --> src/ast.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     BlockStatement(Vec<Statement>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/parser.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Call,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "ca90d262d7baa1f924f57b28eff6308e1b342e66baf276b00849608ead8dd62b"`
[INFO] running `"docker" "rm" "-f" "ca90d262d7baa1f924f57b28eff6308e1b342e66baf276b00849608ead8dd62b"`
[INFO] [stdout] ca90d262d7baa1f924f57b28eff6308e1b342e66baf276b00849608ead8dd62b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/bpandreotti/monkey-rust:/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] f302775aeca37c2882d212b37cfc1cf2b7c88a95f3574d68eb403b25abd0c562
[INFO] running `"docker" "start" "-a" "f302775aeca37c2882d212b37cfc1cf2b7c88a95f3574d68eb403b25abd0c562"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_monkey-ad15d6e997571356
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lexer::tests::test_next_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f302775aeca37c2882d212b37cfc1cf2b7c88a95f3574d68eb403b25abd0c562"`
[INFO] running `"docker" "rm" "-f" "f302775aeca37c2882d212b37cfc1cf2b7c88a95f3574d68eb403b25abd0c562"`
[INFO] [stdout] f302775aeca37c2882d212b37cfc1cf2b7c88a95f3574d68eb403b25abd0c562