[INFO] updating cached repository Chilinot/RustyTree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Chilinot/RustyTree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Chilinot/RustyTree" "work/ex/beta-1.37-6/sources/1.36.0/gh/Chilinot/RustyTree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Chilinot/RustyTree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Chilinot/RustyTree" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Chilinot/RustyTree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Chilinot/RustyTree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5297f8ca51b2df64b95e82abf3d3afd649272415
[INFO] sha for GitHub repo Chilinot/RustyTree: 5297f8ca51b2df64b95e82abf3d3afd649272415
[INFO] validating manifest of Chilinot/RustyTree 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 Chilinot/RustyTree 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 Chilinot/RustyTree
[INFO] finished frobbing Chilinot/RustyTree
[INFO] frobbed toml for Chilinot/RustyTree written to work/ex/beta-1.37-6/sources/1.36.0/gh/Chilinot/RustyTree/Cargo.toml
[INFO] started frobbing Chilinot/RustyTree
[INFO] finished frobbing Chilinot/RustyTree
[INFO] frobbed toml for Chilinot/RustyTree written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Chilinot/RustyTree/Cargo.toml
[INFO] crate Chilinot/RustyTree 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] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Chilinot/RustyTree/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/chilinot/rustyqueue.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/chilinot/rustyqueue.git`
[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 Chilinot/RustyTree 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/Chilinot/RustyTree:/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] 248d0d292334839580014007d41abd5077a9e58dd2b31c31a3da77180e0ba872
[INFO] running `"docker" "start" "-a" "248d0d292334839580014007d41abd5077a9e58dd2b31c31a3da77180e0ba872"`
[INFO] [stderr]    Compiling rusty_queue v0.1.0 (https://github.com/chilinot/rustyqueue.git#b263bccd)
[INFO] [stderr]    Compiling rusty_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/binary_tree.rs:113:24
[INFO] [stderr]     |
[INFO] [stderr] 113 |         for counter in (1..max_nodes+1) {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "248d0d292334839580014007d41abd5077a9e58dd2b31c31a3da77180e0ba872"`
[INFO] running `"docker" "rm" "-f" "248d0d292334839580014007d41abd5077a9e58dd2b31c31a3da77180e0ba872"`
[INFO] [stdout] 248d0d292334839580014007d41abd5077a9e58dd2b31c31a3da77180e0ba872
[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/Chilinot/RustyTree:/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] fe254026869c514e0a45ff3efedc7b360e0ec7b45cac70231c40df98bc5aa271
[INFO] running `"docker" "start" "-a" "fe254026869c514e0a45ff3efedc7b360e0ec7b45cac70231c40df98bc5aa271"`
[INFO] [stderr]    Compiling rusty_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/binary_tree.rs:113:24
[INFO] [stderr]     |
[INFO] [stderr] 113 |         for counter in (1..max_nodes+1) {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "fe254026869c514e0a45ff3efedc7b360e0ec7b45cac70231c40df98bc5aa271"`
[INFO] running `"docker" "rm" "-f" "fe254026869c514e0a45ff3efedc7b360e0ec7b45cac70231c40df98bc5aa271"`
[INFO] [stdout] fe254026869c514e0a45ff3efedc7b360e0ec7b45cac70231c40df98bc5aa271
[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/Chilinot/RustyTree:/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] f564aebfc69c3dd0034774653780c0e0f1536b2252e957247f3ef523f2d73e3c
[INFO] running `"docker" "start" "-a" "f564aebfc69c3dd0034774653780c0e0f1536b2252e957247f3ef523f2d73e3c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_tree-eca19767ad6c95ca
[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] [stderr]      Running /opt/crater/target/debug/deps/testrun-b31b745b5e0180b4
[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] [stderr]    Doc-tests rusty_tree
[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" "f564aebfc69c3dd0034774653780c0e0f1536b2252e957247f3ef523f2d73e3c"`
[INFO] running `"docker" "rm" "-f" "f564aebfc69c3dd0034774653780c0e0f1536b2252e957247f3ef523f2d73e3c"`
[INFO] [stdout] f564aebfc69c3dd0034774653780c0e0f1536b2252e957247f3ef523f2d73e3c