[INFO] cloning repository akr4/monkey-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/akr4/monkey-rust.git" "work/cache/sources/gh/akr4/monkey-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/akr4/monkey-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/akr4/monkey-rust" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/akr4/monkey-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/akr4/monkey-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/akr4/monkey-rust" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/akr4/monkey-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/akr4/monkey-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fab276752b07c9c76a648d8ee5f319a5c43be652
[INFO] sha for GitHub repo akr4/monkey-rust: fab276752b07c9c76a648d8ee5f319a5c43be652
[INFO] validating manifest of akr4/monkey-rust on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of akr4/monkey-rust on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing akr4/monkey-rust
[INFO] finished frobbing akr4/monkey-rust
[INFO] frobbed toml for akr4/monkey-rust written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/akr4/monkey-rust/Cargo.toml
[INFO] started frobbing akr4/monkey-rust
[INFO] finished frobbing akr4/monkey-rust
[INFO] frobbed toml for akr4/monkey-rust written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/akr4/monkey-rust/Cargo.toml
[INFO] crate akr4/monkey-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing akr4/monkey-rust against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/akr4/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 754595a318a92b8610cb182de5ac7f6e33f61b524d81cf1a50bdaebd5b05d8b0
[INFO] running `"docker" "start" "-a" "754595a318a92b8610cb182de5ac7f6e33f61b524d81cf1a50bdaebd5b05d8b0"`
[INFO] [stderr]    Compiling monkey-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/repl.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |                     writeln!(write, "{:?}", token);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "754595a318a92b8610cb182de5ac7f6e33f61b524d81cf1a50bdaebd5b05d8b0"`
[INFO] running `"docker" "rm" "-f" "754595a318a92b8610cb182de5ac7f6e33f61b524d81cf1a50bdaebd5b05d8b0"`
[INFO] [stdout] 754595a318a92b8610cb182de5ac7f6e33f61b524d81cf1a50bdaebd5b05d8b0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/akr4/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 31c192e49bd738176f688710e520272295617ebd7fe1dc3ec5fc12b7b05da095
[INFO] running `"docker" "start" "-a" "31c192e49bd738176f688710e520272295617ebd7fe1dc3ec5fc12b7b05da095"`
[INFO] [stderr]    Compiling monkey-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/repl.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |                     writeln!(write, "{:?}", token);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `"docker" "inspect" "31c192e49bd738176f688710e520272295617ebd7fe1dc3ec5fc12b7b05da095"`
[INFO] running `"docker" "rm" "-f" "31c192e49bd738176f688710e520272295617ebd7fe1dc3ec5fc12b7b05da095"`
[INFO] [stdout] 31c192e49bd738176f688710e520272295617ebd7fe1dc3ec5fc12b7b05da095
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/akr4/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] 8fd41386731cef6827f991ec4f9eed613942b51be3ee53d27a44ed7ea41f238d
[INFO] running `"docker" "start" "-a" "8fd41386731cef6827f991ec4f9eed613942b51be3ee53d27a44ed7ea41f238d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/monkey_rust-db81e37f36f797ad
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lexer_test::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" "8fd41386731cef6827f991ec4f9eed613942b51be3ee53d27a44ed7ea41f238d"`
[INFO] running `"docker" "rm" "-f" "8fd41386731cef6827f991ec4f9eed613942b51be3ee53d27a44ed7ea41f238d"`
[INFO] [stdout] 8fd41386731cef6827f991ec4f9eed613942b51be3ee53d27a44ed7ea41f238d