[INFO] updating cached repository ruggeri/nedbase
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ruggeri/nedbase
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ruggeri/nedbase" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ruggeri/nedbase"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ruggeri/nedbase'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ruggeri/nedbase" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ruggeri/nedbase"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ruggeri/nedbase'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bb29bfb51d21d9e127303565f85abeab875c4262
[INFO] sha for GitHub repo ruggeri/nedbase: bb29bfb51d21d9e127303565f85abeab875c4262
[INFO] validating manifest of ruggeri/nedbase on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ruggeri/nedbase on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ruggeri/nedbase
[INFO] finished frobbing ruggeri/nedbase
[INFO] frobbed toml for ruggeri/nedbase written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ruggeri/nedbase/Cargo.toml
[INFO] started frobbing ruggeri/nedbase
[INFO] finished frobbing ruggeri/nedbase
[INFO] frobbed toml for ruggeri/nedbase written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ruggeri/nedbase/Cargo.toml
[INFO] crate ruggeri/nedbase has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ruggeri/nedbase against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ruggeri/nedbase:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 45604d29625ec8f4467284bd97533c058b15fe5344139612376e900ba3a3282f
[INFO] running `"docker" "start" "-a" "45604d29625ec8f4467284bd97533c058b15fe5344139612376e900ba3a3282f"`
[INFO] [stderr]    Compiling nedbase v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `RefCellGuard`, `WeakRefCellGuard`
[INFO] [stderr]   --> src/locking/lock_set/mod.rs:12:52
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(self) use self::lock_set_value::{LockSetValue, RefCellGuard, StrongRefCellGuard, WeakRefCellGuard};
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^                      ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key1_present`
[INFO] [stderr]    --> src/bin/main.rs:100:11
[INFO] [stderr]     |
[INFO] [stderr] 100 |       let key1_present = BTree::contains_key(&mut lock_set, &key1);
[INFO] [stderr]     |           ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_key1_present`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key2_present`
[INFO] [stderr]    --> src/bin/main.rs:101:11
[INFO] [stderr]     |
[INFO] [stderr] 101 |       let key2_present = BTree::contains_key(&mut lock_set, &key2);
[INFO] [stderr]     |           ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_key2_present`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `"docker" "inspect" "45604d29625ec8f4467284bd97533c058b15fe5344139612376e900ba3a3282f"`
[INFO] running `"docker" "rm" "-f" "45604d29625ec8f4467284bd97533c058b15fe5344139612376e900ba3a3282f"`
[INFO] [stdout] 45604d29625ec8f4467284bd97533c058b15fe5344139612376e900ba3a3282f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ruggeri/nedbase:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7c1dd6197517733935cc909fcc73d645261753c1527d4a66639a3e60e1b1b01c
[INFO] running `"docker" "start" "-a" "7c1dd6197517733935cc909fcc73d645261753c1527d4a66639a3e60e1b1b01c"`
[INFO] [stderr]    Compiling nedbase v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `RefCellGuard`, `WeakRefCellGuard`
[INFO] [stderr]   --> src/locking/lock_set/mod.rs:12:52
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(self) use self::lock_set_value::{LockSetValue, RefCellGuard, StrongRefCellGuard, WeakRefCellGuard};
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^                      ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key1_present`
[INFO] [stderr]    --> src/bin/main.rs:100:11
[INFO] [stderr]     |
[INFO] [stderr] 100 |       let key1_present = BTree::contains_key(&mut lock_set, &key1);
[INFO] [stderr]     |           ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_key1_present`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key2_present`
[INFO] [stderr]    --> src/bin/main.rs:101:11
[INFO] [stderr]     |
[INFO] [stderr] 101 |       let key2_present = BTree::contains_key(&mut lock_set, &key2);
[INFO] [stderr]     |           ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_key2_present`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "7c1dd6197517733935cc909fcc73d645261753c1527d4a66639a3e60e1b1b01c"`
[INFO] running `"docker" "rm" "-f" "7c1dd6197517733935cc909fcc73d645261753c1527d4a66639a3e60e1b1b01c"`
[INFO] [stdout] 7c1dd6197517733935cc909fcc73d645261753c1527d4a66639a3e60e1b1b01c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ruggeri/nedbase:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] e69a3cab8464ce5c7e8bd32ad1c29a4332a99d0e50c59f0a84d077d01bf242ce
[INFO] running `"docker" "start" "-a" "e69a3cab8464ce5c7e8bd32ad1c29a4332a99d0e50c59f0a84d077d01bf242ce"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nedbase-fbc3567a6a891af4
[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] [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/main-961783e108710e37
[INFO] [stderr]    Doc-tests nedbase
[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" "e69a3cab8464ce5c7e8bd32ad1c29a4332a99d0e50c59f0a84d077d01bf242ce"`
[INFO] running `"docker" "rm" "-f" "e69a3cab8464ce5c7e8bd32ad1c29a4332a99d0e50c59f0a84d077d01bf242ce"`
[INFO] [stdout] e69a3cab8464ce5c7e8bd32ad1c29a4332a99d0e50c59f0a84d077d01bf242ce