[INFO] updating cached repository sbwtw/RBTree [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/sbwtw/RBTree [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/sbwtw/RBTree" "work/ex/beta-1.38-1/sources/1.37.0/gh/sbwtw/RBTree"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sbwtw/RBTree'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/sbwtw/RBTree" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbwtw/RBTree"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbwtw/RBTree'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ab8c988a7cb8a70dbbae4e8589e805bafdfc2f49 [INFO] sha for GitHub repo sbwtw/RBTree: ab8c988a7cb8a70dbbae4e8589e805bafdfc2f49 [INFO] validating manifest of sbwtw/RBTree 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 sbwtw/RBTree 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 sbwtw/RBTree [INFO] finished frobbing sbwtw/RBTree [INFO] frobbed toml for sbwtw/RBTree written to work/ex/beta-1.38-1/sources/1.37.0/gh/sbwtw/RBTree/Cargo.toml [INFO] started frobbing sbwtw/RBTree [INFO] finished frobbing sbwtw/RBTree [INFO] frobbed toml for sbwtw/RBTree written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbwtw/RBTree/Cargo.toml [INFO] crate sbwtw/RBTree 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 sbwtw/RBTree against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbwtw/RBTree:/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-2019-08-13" "build" "--frozen"` [INFO] [stdout] 19abab1e6608f08a6693908560910d597b18717f094eda1a33e228d1013ea7b9 [INFO] running `"docker" "start" "-a" "19abab1e6608f08a6693908560910d597b18717f094eda1a33e228d1013ea7b9"` [INFO] [stderr] Compiling rbtree v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/main.rs:151:1 [INFO] [stderr] | [INFO] [stderr] 151 | / /// [INFO] [stderr] 152 | | /// 123 -> "1234" [INFO] [stderr] 153 | | /// / \ [INFO] [stderr] 154 | | /// 120 -> "120" 126 -> "126" [INFO] [stderr] 155 | | /// [INFO] [stderr] | |___^ [INFO] [stderr] 156 | assert_eq!(None, tree.get_mut(123)); [INFO] [stderr] | ------------------------------------ rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Red` [INFO] [stderr] --> src/main.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Red, [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Direction` [INFO] [stderr] --> src/main.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | enum Direction { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `ensure_root_black` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | fn ensure_root_black(root: &mut OptNode) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `insert_n` [INFO] [stderr] --> src/main.rs:85:1 [INFO] [stderr] | [INFO] [stderr] 85 | fn insert_n(root: &mut OptNode, key: K, value: V) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_color` [INFO] [stderr] --> src/main.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | fn set_color(&mut self, color: RBColor) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.08s [INFO] running `"docker" "inspect" "19abab1e6608f08a6693908560910d597b18717f094eda1a33e228d1013ea7b9"` [INFO] running `"docker" "rm" "-f" "19abab1e6608f08a6693908560910d597b18717f094eda1a33e228d1013ea7b9"` [INFO] [stdout] 19abab1e6608f08a6693908560910d597b18717f094eda1a33e228d1013ea7b9 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbwtw/RBTree:/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-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] f9d67a14bd4881662bcd9f73b6cf1142a90e26e57b7490e50d5acdbb63a00db1 [INFO] running `"docker" "start" "-a" "f9d67a14bd4881662bcd9f73b6cf1142a90e26e57b7490e50d5acdbb63a00db1"` [INFO] [stderr] Compiling rbtree v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/main.rs:151:1 [INFO] [stderr] | [INFO] [stderr] 151 | / /// [INFO] [stderr] 152 | | /// 123 -> "1234" [INFO] [stderr] 153 | | /// / \ [INFO] [stderr] 154 | | /// 120 -> "120" 126 -> "126" [INFO] [stderr] 155 | | /// [INFO] [stderr] | |___^ [INFO] [stderr] 156 | assert_eq!(None, tree.get_mut(123)); [INFO] [stderr] | ------------------------------------ rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Red` [INFO] [stderr] --> src/main.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Red, [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Direction` [INFO] [stderr] --> src/main.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | enum Direction { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `ensure_root_black` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | fn ensure_root_black(root: &mut OptNode) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `insert_n` [INFO] [stderr] --> src/main.rs:85:1 [INFO] [stderr] | [INFO] [stderr] 85 | fn insert_n(root: &mut OptNode, key: K, value: V) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_color` [INFO] [stderr] --> src/main.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | fn set_color(&mut self, color: RBColor) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `"docker" "inspect" "f9d67a14bd4881662bcd9f73b6cf1142a90e26e57b7490e50d5acdbb63a00db1"` [INFO] running `"docker" "rm" "-f" "f9d67a14bd4881662bcd9f73b6cf1142a90e26e57b7490e50d5acdbb63a00db1"` [INFO] [stdout] f9d67a14bd4881662bcd9f73b6cf1142a90e26e57b7490e50d5acdbb63a00db1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbwtw/RBTree:/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-2019-08-13" "test" "--frozen"` [INFO] [stdout] 9615b5c99f43690c263e8c882e159ba2a961511e8be889aaadee7baf2680f63a [INFO] running `"docker" "start" "-a" "9615b5c99f43690c263e8c882e159ba2a961511e8be889aaadee7baf2680f63a"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/rbtree-d28e1d3377d306ba [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" "9615b5c99f43690c263e8c882e159ba2a961511e8be889aaadee7baf2680f63a"` [INFO] running `"docker" "rm" "-f" "9615b5c99f43690c263e8c882e159ba2a961511e8be889aaadee7baf2680f63a"` [INFO] [stdout] 9615b5c99f43690c263e8c882e159ba2a961511e8be889aaadee7baf2680f63a