[INFO] updating cached repository tralfamadore/lispr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tralfamadore/lispr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tralfamadore/lispr" "work/ex/beta-1.38-1/sources/1.37.0/gh/tralfamadore/lispr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tralfamadore/lispr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tralfamadore/lispr" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tralfamadore/lispr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tralfamadore/lispr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f3068538517eedadd8b95b139a25d503777f0d1
[INFO] sha for GitHub repo tralfamadore/lispr: 1f3068538517eedadd8b95b139a25d503777f0d1
[INFO] validating manifest of tralfamadore/lispr 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 tralfamadore/lispr 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 tralfamadore/lispr
[INFO] finished frobbing tralfamadore/lispr
[INFO] frobbed toml for tralfamadore/lispr written to work/ex/beta-1.38-1/sources/1.37.0/gh/tralfamadore/lispr/Cargo.toml
[INFO] started frobbing tralfamadore/lispr
[INFO] finished frobbing tralfamadore/lispr
[INFO] frobbed toml for tralfamadore/lispr written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tralfamadore/lispr/Cargo.toml
[INFO] crate tralfamadore/lispr 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 tralfamadore/lispr against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tralfamadore/lispr:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3f69d5da49ce23706a18d64f69d53c1179150581b16bc82f806db9c322859508
[INFO] running `"docker" "start" "-a" "3f69d5da49ce23706a18d64f69d53c1179150581b16bc82f806db9c322859508"`
[INFO] [stderr]    Compiling lispr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `root`
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let root = parse(&mut tokens);
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_root`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     value: &'a str,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `children`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     children: Option<Vec<Node<'a>>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "3f69d5da49ce23706a18d64f69d53c1179150581b16bc82f806db9c322859508"`
[INFO] running `"docker" "rm" "-f" "3f69d5da49ce23706a18d64f69d53c1179150581b16bc82f806db9c322859508"`
[INFO] [stdout] 3f69d5da49ce23706a18d64f69d53c1179150581b16bc82f806db9c322859508
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tralfamadore/lispr:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2223b5478373206c9faa3f837667c395880083bb5acfb3738220326a76a33298
[INFO] running `"docker" "start" "-a" "2223b5478373206c9faa3f837667c395880083bb5acfb3738220326a76a33298"`
[INFO] [stderr]    Compiling lispr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `root`
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let root = parse(&mut tokens);
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_root`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     value: &'a str,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `children`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     children: Option<Vec<Node<'a>>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "2223b5478373206c9faa3f837667c395880083bb5acfb3738220326a76a33298"`
[INFO] running `"docker" "rm" "-f" "2223b5478373206c9faa3f837667c395880083bb5acfb3738220326a76a33298"`
[INFO] [stdout] 2223b5478373206c9faa3f837667c395880083bb5acfb3738220326a76a33298
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tralfamadore/lispr:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 38039c8492685fca287190457dd9cfac63864e90fc7266068eed1fd29cf558dc
[INFO] running `"docker" "start" "-a" "38039c8492685fca287190457dd9cfac63864e90fc7266068eed1fd29cf558dc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lispr-abc86c1c3b78f400
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "38039c8492685fca287190457dd9cfac63864e90fc7266068eed1fd29cf558dc"`
[INFO] running `"docker" "rm" "-f" "38039c8492685fca287190457dd9cfac63864e90fc7266068eed1fd29cf558dc"`
[INFO] [stdout] 38039c8492685fca287190457dd9cfac63864e90fc7266068eed1fd29cf558dc