[INFO] cloning repository bpandreotti/monkey-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/bpandreotti/monkey-rust.git" "work/cache/sources/gh/bpandreotti/monkey-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/bpandreotti/monkey-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/bpandreotti/monkey-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/bpandreotti/monkey-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/bpandreotti/monkey-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bpandreotti/monkey-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bpandreotti/monkey-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bpandreotti/monkey-rust 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 bpandreotti/monkey-rust
[INFO] finished frobbing bpandreotti/monkey-rust
[INFO] frobbed toml for bpandreotti/monkey-rust written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 bpandreotti/monkey-rust 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-0/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/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2540eba7714f7ea31b7b2453df0dec67ce5562a268e041800938b0b15306530a
[INFO] running `"docker" "start" "-a" "2540eba7714f7ea31b7b2453df0dec67ce5562a268e041800938b0b15306530a"`
[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 1.33s
[INFO] running `"docker" "inspect" "2540eba7714f7ea31b7b2453df0dec67ce5562a268e041800938b0b15306530a"`
[INFO] running `"docker" "rm" "-f" "2540eba7714f7ea31b7b2453df0dec67ce5562a268e041800938b0b15306530a"`
[INFO] [stdout] 2540eba7714f7ea31b7b2453df0dec67ce5562a268e041800938b0b15306530a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 597e2477281d8d82c83a5e2ef6f57082aeeb0a4b6bf3319393b20c09f6bfaf54
[INFO] running `"docker" "start" "-a" "597e2477281d8d82c83a5e2ef6f57082aeeb0a4b6bf3319393b20c09f6bfaf54"`
[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 1.16s
[INFO] running `"docker" "inspect" "597e2477281d8d82c83a5e2ef6f57082aeeb0a4b6bf3319393b20c09f6bfaf54"`
[INFO] running `"docker" "rm" "-f" "597e2477281d8d82c83a5e2ef6f57082aeeb0a4b6bf3319393b20c09f6bfaf54"`
[INFO] [stdout] 597e2477281d8d82c83a5e2ef6f57082aeeb0a4b6bf3319393b20c09f6bfaf54
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] a0af7badbb18ea74811e5dadfbe612d6780feaeb83953cc1d85201c15337df2a
[INFO] running `"docker" "start" "-a" "a0af7badbb18ea74811e5dadfbe612d6780feaeb83953cc1d85201c15337df2a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_monkey-1034931bcfe3542a
[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" "a0af7badbb18ea74811e5dadfbe612d6780feaeb83953cc1d85201c15337df2a"`
[INFO] running `"docker" "rm" "-f" "a0af7badbb18ea74811e5dadfbe612d6780feaeb83953cc1d85201c15337df2a"`
[INFO] [stdout] a0af7badbb18ea74811e5dadfbe612d6780feaeb83953cc1d85201c15337df2a