[INFO] crate quackin 0.1.1 is already in cache
[INFO] testing quackin-0.1.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate quackin 0.1.1 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate quackin 0.1.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate quackin 0.1.1
[INFO] finished tweaking crates.io crate quackin 0.1.1
[INFO] tweaked toml for crates.io crate quackin 0.1.1 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 4ebf77ef60160eb6c4118e2d12a2c797bcdc12a0e3844081d3b22e9cc3f4e067
[INFO] running `"docker" "start" "-a" "4ebf77ef60160eb6c4118e2d12a2c797bcdc12a0e3844081d3b22e9cc3f4e067"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling ndarray v0.6.10
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling sprs v0.4.1
[INFO] [stderr]    Compiling quackin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/mod.rs:109:22
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let mut reader = try!(csv::Reader::from_file(path)).has_headers(has_headers).delimiter(del);
[INFO] [stderr]     |                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/recommender/mod.rs:95:26
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let user_index = try!(self.user_indices.get(user_id).ok_or("User not found"));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/recommender/mod.rs:96:26
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let item_index = try!(self.item_indices.get(item_id).ok_or("Item not found"));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `"docker" "inspect" "4ebf77ef60160eb6c4118e2d12a2c797bcdc12a0e3844081d3b22e9cc3f4e067"`
[INFO] running `"docker" "rm" "-f" "4ebf77ef60160eb6c4118e2d12a2c797bcdc12a0e3844081d3b22e9cc3f4e067"`
[INFO] [stdout] 4ebf77ef60160eb6c4118e2d12a2c797bcdc12a0e3844081d3b22e9cc3f4e067
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] fea250bed4a8f151a4b1d6bb66ef8d593421be536c4f47c8e0b23abc2c4f7caa
[INFO] running `"docker" "start" "-a" "fea250bed4a8f151a4b1d6bb66ef8d593421be536c4f47c8e0b23abc2c4f7caa"`
[INFO] [stderr]    Compiling quackin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/mod.rs:109:22
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let mut reader = try!(csv::Reader::from_file(path)).has_headers(has_headers).delimiter(del);
[INFO] [stderr]     |                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/recommender/mod.rs:95:26
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let user_index = try!(self.user_indices.get(user_id).ok_or("User not found"));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/recommender/mod.rs:96:26
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let item_index = try!(self.item_indices.get(item_id).ok_or("Item not found"));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "fea250bed4a8f151a4b1d6bb66ef8d593421be536c4f47c8e0b23abc2c4f7caa"`
[INFO] running `"docker" "rm" "-f" "fea250bed4a8f151a4b1d6bb66ef8d593421be536c4f47c8e0b23abc2c4f7caa"`
[INFO] [stdout] fea250bed4a8f151a4b1d6bb66ef8d593421be536c4f47c8e0b23abc2c4f7caa
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 4ee0b9c8f845903a3d843c5a670c293082d1af8c18c83d6df77f49613f3e6dbc
[INFO] running `"docker" "start" "-a" "4ee0b9c8f845903a3d843c5a670c293082d1af8c18c83d6df77f49613f3e6dbc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quackin-680d964c9a2a696a
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quackin-cdde839d2abde615
[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 5 tests
[INFO] [stdout] test read_mock_with_separator ... ok
[INFO] [stdout] test read_mock ... ok
[INFO] [stdout] test read_mock_with_headers ... ok
[INFO] [stdout] test knn_user_recommender ... ok
[INFO] [stderr]    Doc-tests quackin
[INFO] [stdout] test read_mock_with_custom_records ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/data/mod.rs - data (line 8) ... ignored
[INFO] [stdout] test src/data/mod.rs - data::Record (line 37) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 22) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4ee0b9c8f845903a3d843c5a670c293082d1af8c18c83d6df77f49613f3e6dbc"`
[INFO] running `"docker" "rm" "-f" "4ee0b9c8f845903a3d843c5a670c293082d1af8c18c83d6df77f49613f3e6dbc"`
[INFO] [stdout] 4ee0b9c8f845903a3d843c5a670c293082d1af8c18c83d6df77f49613f3e6dbc