[INFO] crate dupcheck 0.1.0 is already in cache
[INFO] testing dupcheck-0.1.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate dupcheck 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate dupcheck 0.1.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dupcheck 0.1.0
[INFO] finished tweaking crates.io crate dupcheck 0.1.0
[INFO] tweaked toml for crates.io crate dupcheck 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0947e40d1c0caafc73731a73d2e8a1757f8084dbac0668f355a8ed6d6ca4d3a9
[INFO] running `"docker" "start" "-a" "0947e40d1c0caafc73731a73d2e8a1757f8084dbac0668f355a8ed6d6ca4d3a9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sha2 v0.1.2
[INFO] [stderr]    Compiling dupcheck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let file = try!(File::open(&self));
[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/utilities.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let byte = try!(byte);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:33:24
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let read = try!(dirs[0].read_dir());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let entry_path = try!(entry).path();
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let size = try!(entry_path.metadata()).len();
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 115 | |                 dir.files_within(Some(&sizes)),
[INFO] [stderr] 116 | |                 dir
[INFO] [stderr] 117 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 138 | |                 parent.files_within(Some(&sizes)),
[INFO] [stderr] 139 | |                 parent
[INFO] [stderr] 140 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut dir_files = try_with_path!(dir.files_within(None), dir);
[INFO] [stderr]     |                             ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:229:24
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                        ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:245:24
[INFO] [stderr]     |
[INFO] [stderr] 245 |             let hash = try_with_path!(file.sha256(), file);
[INFO] [stderr]     |                        ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `"docker" "inspect" "0947e40d1c0caafc73731a73d2e8a1757f8084dbac0668f355a8ed6d6ca4d3a9"`
[INFO] running `"docker" "rm" "-f" "0947e40d1c0caafc73731a73d2e8a1757f8084dbac0668f355a8ed6d6ca4d3a9"`
[INFO] [stdout] 0947e40d1c0caafc73731a73d2e8a1757f8084dbac0668f355a8ed6d6ca4d3a9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 206a377203282d39fcee968c1926f334a66f2b2d00edb9e7c9ca6042fd2dbf50
[INFO] running `"docker" "start" "-a" "206a377203282d39fcee968c1926f334a66f2b2d00edb9e7c9ca6042fd2dbf50"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling dupcheck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let file = try!(File::open(&self));
[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/utilities.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let byte = try!(byte);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:33:24
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let read = try!(dirs[0].read_dir());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let entry_path = try!(entry).path();
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let size = try!(entry_path.metadata()).len();
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 115 | |                 dir.files_within(Some(&sizes)),
[INFO] [stderr] 116 | |                 dir
[INFO] [stderr] 117 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 138 | |                 parent.files_within(Some(&sizes)),
[INFO] [stderr] 139 | |                 parent
[INFO] [stderr] 140 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut dir_files = try_with_path!(dir.files_within(None), dir);
[INFO] [stderr]     |                             ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:229:24
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                        ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:245:24
[INFO] [stderr]     |
[INFO] [stderr] 245 |             let hash = try_with_path!(file.sha256(), file);
[INFO] [stderr]     |                        ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let file = try!(File::open(&self));
[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/utilities.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let byte = try!(byte);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:33:24
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let read = try!(dirs[0].read_dir());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let entry_path = try!(entry).path();
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let size = try!(entry_path.metadata()).len();
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/duplicate-files.rs:48:55
[INFO] [stderr]    |
[INFO] [stderr] 48 |         println!("Error: {}", dup_result.unwrap_err().description());
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/duplicates-of.rs:64:55
[INFO] [stderr]    |
[INFO] [stderr] 64 |         println!("Error: {}", dup_result.unwrap_err().description());
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/duplicates-within.rs:46:55
[INFO] [stderr]    |
[INFO] [stderr] 46 |         println!("Error: {}", dup_result.unwrap_err().description());
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 115 | |                 dir.files_within(Some(&sizes)),
[INFO] [stderr] 116 | |                 dir
[INFO] [stderr] 117 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 138 | |                 parent.files_within(Some(&sizes)),
[INFO] [stderr] 139 | |                 parent
[INFO] [stderr] 140 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut dir_files = try_with_path!(dir.files_within(None), dir);
[INFO] [stderr]     |                             ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:229:24
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                        ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:245:24
[INFO] [stderr]     |
[INFO] [stderr] 245 |             let hash = try_with_path!(file.sha256(), file);
[INFO] [stderr]     |                        ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `"docker" "inspect" "206a377203282d39fcee968c1926f334a66f2b2d00edb9e7c9ca6042fd2dbf50"`
[INFO] running `"docker" "rm" "-f" "206a377203282d39fcee968c1926f334a66f2b2d00edb9e7c9ca6042fd2dbf50"`
[INFO] [stdout] 206a377203282d39fcee968c1926f334a66f2b2d00edb9e7c9ca6042fd2dbf50
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aca3f5b1641288bd55413893b9f1e0eef2a605f62e9288b5aa8469c9fb2463db
[INFO] running `"docker" "start" "-a" "aca3f5b1641288bd55413893b9f1e0eef2a605f62e9288b5aa8469c9fb2463db"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let file = try!(File::open(&self));
[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/utilities.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let byte = try!(byte);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:33:24
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let read = try!(dirs[0].read_dir());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let entry_path = try!(entry).path();
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let size = try!(entry_path.metadata()).len();
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 115 | |                 dir.files_within(Some(&sizes)),
[INFO] [stderr] 116 | |                 dir
[INFO] [stderr] 117 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 138 | |                 parent.files_within(Some(&sizes)),
[INFO] [stderr] 139 | |                 parent
[INFO] [stderr] 140 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut dir_files = try_with_path!(dir.files_within(None), dir);
[INFO] [stderr]     |                             ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:229:24
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                        ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:245:24
[INFO] [stderr]     |
[INFO] [stderr] 245 |             let hash = try_with_path!(file.sha256(), file);
[INFO] [stderr]     |                        ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/duplicate-files.rs:48:55
[INFO] [stderr]    |
[INFO] [stderr] 48 |         println!("Error: {}", dup_result.unwrap_err().description());
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let file = try!(File::open(&self));
[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/utilities.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let byte = try!(byte);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:33:24
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let read = try!(dirs[0].read_dir());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let entry_path = try!(entry).path();
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/utilities.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let size = try!(entry_path.metadata()).len();
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 115 | |                 dir.files_within(Some(&sizes)),
[INFO] [stderr] 116 | |                 dir
[INFO] [stderr] 117 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |             let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                            ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                   format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |               let mut dir_files = try_with_path!(
[INFO] [stderr]     |  _________________________________-
[INFO] [stderr] 138 | |                 parent.files_within(Some(&sizes)),
[INFO] [stderr] 139 | |                 parent
[INFO] [stderr] 140 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut dir_files = try_with_path!(dir.files_within(None), dir);
[INFO] [stderr]     |                             ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:229:24
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let metadata = try_with_path!(file.metadata(), file);
[INFO] [stderr]     |                        ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/macros.rs:9:52
[INFO] [stderr]     |
[INFO] [stderr] 9   |                 format!("{} ({})", $y.display(), e.description())
[INFO] [stderr]     |                                                    ^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:245:24
[INFO] [stderr]     |
[INFO] [stderr] 245 |             let hash = try_with_path!(file.sha256(), file);
[INFO] [stderr]     |                        ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/duplicates-within.rs:46:55
[INFO] [stderr]    |
[INFO] [stderr] 46 |         println!("Error: {}", dup_result.unwrap_err().description());
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/duplicates-of.rs:64:55
[INFO] [stderr]    |
[INFO] [stderr] 64 |         println!("Error: {}", dup_result.unwrap_err().description());
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dupcheck-b917c183704b7356
[INFO] [stderr]    Doc-tests dupcheck
[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 4 tests
[INFO] [stdout] test src/lib.rs - duplicates_of (line 66) ... ok
[INFO] [stdout] test src/lib.rs - duplicate_files (line 203) ... ok
[INFO] [stdout] test src/lib.rs - duplicates_within (line 162) ... ok
[INFO] [stdout] test src/lib.rs - duplicates_of (line 75) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "aca3f5b1641288bd55413893b9f1e0eef2a605f62e9288b5aa8469c9fb2463db"`
[INFO] running `"docker" "rm" "-f" "aca3f5b1641288bd55413893b9f1e0eef2a605f62e9288b5aa8469c9fb2463db"`
[INFO] [stdout] aca3f5b1641288bd55413893b9f1e0eef2a605f62e9288b5aa8469c9fb2463db