[INFO] updating cached repository alekratz/not-perl
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alekratz/not-perl
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alekratz/not-perl" "work/ex/beta-1.37-6/sources/1.36.0/gh/alekratz/not-perl"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alekratz/not-perl'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alekratz/not-perl" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alekratz/not-perl"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alekratz/not-perl'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a308bceec453c7c1e3f510d69c6f5ddd13c1eb5
[INFO] sha for GitHub repo alekratz/not-perl: 2a308bceec453c7c1e3f510d69c6f5ddd13c1eb5
[INFO] validating manifest of alekratz/not-perl 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 alekratz/not-perl 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 alekratz/not-perl
[INFO] finished frobbing alekratz/not-perl
[INFO] frobbed toml for alekratz/not-perl written to work/ex/beta-1.37-6/sources/1.36.0/gh/alekratz/not-perl/Cargo.toml
[INFO] started frobbing alekratz/not-perl
[INFO] finished frobbing alekratz/not-perl
[INFO] frobbed toml for alekratz/not-perl written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alekratz/not-perl/Cargo.toml
[INFO] crate alekratz/not-perl 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 alekratz/not-perl 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/alekratz/not-perl:/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] efc68cd0c5e55931455820ca4177f1f996ca086b829e4a6130de510acfc27a20
[INFO] running `"docker" "start" "-a" "efc68cd0c5e55931455820ca4177f1f996ca086b829e4a6130de510acfc27a20"`
[INFO] [stderr]    Compiling enum-methods v0.0.8
[INFO] [stderr]    Compiling not-perl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `IrTree` is imported redundantly
[INFO] [stderr]    --> src/compile/state.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 10  | use ir::*;
[INFO] [stderr]     |     ----- the item `IrTree` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 114 |         use ir::IrTree;
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ir/action.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 let mut elseif_action_blocks = elseif_blocks.iter()
[INFO] [stderr]    |                     ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             write!(stdout, " > ");
[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 12.75s
[INFO] running `"docker" "inspect" "efc68cd0c5e55931455820ca4177f1f996ca086b829e4a6130de510acfc27a20"`
[INFO] running `"docker" "rm" "-f" "efc68cd0c5e55931455820ca4177f1f996ca086b829e4a6130de510acfc27a20"`
[INFO] [stdout] efc68cd0c5e55931455820ca4177f1f996ca086b829e4a6130de510acfc27a20
[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/alekratz/not-perl:/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] a5c7d441f5213d15ca696d30975e983900bc0fb8470338fd052b0d10bfbc425a
[INFO] running `"docker" "start" "-a" "a5c7d441f5213d15ca696d30975e983900bc0fb8470338fd052b0d10bfbc425a"`
[INFO] [stderr]    Compiling not-perl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `IrTree` is imported redundantly
[INFO] [stderr]    --> src/compile/state.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 10  | use ir::*;
[INFO] [stderr]     |     ----- the item `IrTree` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 114 |         use ir::IrTree;
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ir/action.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 let mut elseif_action_blocks = elseif_blocks.iter()
[INFO] [stderr]    |                     ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             write!(stdout, " > ");
[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 3.72s
[INFO] running `"docker" "inspect" "a5c7d441f5213d15ca696d30975e983900bc0fb8470338fd052b0d10bfbc425a"`
[INFO] running `"docker" "rm" "-f" "a5c7d441f5213d15ca696d30975e983900bc0fb8470338fd052b0d10bfbc425a"`
[INFO] [stdout] a5c7d441f5213d15ca696d30975e983900bc0fb8470338fd052b0d10bfbc425a
[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/alekratz/not-perl:/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] b2b74ddd1eddedc4f164c58965e6dc29590129c8284e6b63001c04a23900dbe9
[INFO] running `"docker" "start" "-a" "b2b74ddd1eddedc4f164c58965e6dc29590129c8284e6b63001c04a23900dbe9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/not_perl-efeb34f534fa153a
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test syntax::lexer::test::test_lexer_numerics ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_comment ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_bareword ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_str_lit ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_op ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_variable ... ok
[INFO] [stdout] test syntax::parser::test::test_parser_match_token ... ok
[INFO] [stdout] test syntax::parser::test::test_parser_expr ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_str_lit_unclosed ... ok
[INFO] [stdout] test syntax::lexer::test::test_lexer_str_lit_newline ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b2b74ddd1eddedc4f164c58965e6dc29590129c8284e6b63001c04a23900dbe9"`
[INFO] running `"docker" "rm" "-f" "b2b74ddd1eddedc4f164c58965e6dc29590129c8284e6b63001c04a23900dbe9"`
[INFO] [stdout] b2b74ddd1eddedc4f164c58965e6dc29590129c8284e6b63001c04a23900dbe9