[INFO] crate libimagref 0.3.0 is already in cache
[INFO] testing libimagref-0.3.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate libimagref 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate libimagref 0.3.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libimagref 0.3.0
[INFO] finished tweaking crates.io crate libimagref 0.3.0
[INFO] tweaked toml for crates.io crate libimagref 0.3.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e62dea34704881c86cd51547076aba01e54cbd01c471d2cdec7d21deffc555f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e62dea34704881c86cd51547076aba01e54cbd01c471d2cdec7d21deffc555f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e62dea34704881c86cd51547076aba01e54cbd01c471d2cdec7d21deffc555f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62dea34704881c86cd51547076aba01e54cbd01c471d2cdec7d21deffc555f8", kill_on_drop: false }`
[INFO] [stdout] e62dea34704881c86cd51547076aba01e54cbd01c471d2cdec7d21deffc555f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 758495a644c0844af7165d23c81d75f5b1bd7bf94ea4ffc1447ef48de632bdfc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "758495a644c0844af7165d23c81d75f5b1bd7bf94ea4ffc1447ef48de632bdfc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version v2.0.1
[INFO] [stderr]    Compiling is-match v0.1.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling libimagerror v0.3.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling libimagutil v0.3.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling semver-parser v0.6.2
[INFO] [stderr]    Compiling semver v0.5.1
[INFO] [stderr]    Compiling libimagstore v0.3.0
[INFO] [stderr]    Compiling libimagentrylist v0.3.0
[INFO] [stderr]    Compiling libimagref v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/error.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     generate_error_types!(RefError, RefErrorKind,
[INFO] [stdout] 22 | |         StoreReadError          => "Store read error",
[INFO] [stdout] 23 | |         StoreWriteError         => "Store write error",
[INFO] [stdout] 24 | |         IOError                 => "IO Error",
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |         RefHashingError => "Error while hashing"
[INFO] [stdout] 49 | |     );
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/error.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     generate_error_types!(RefError, RefErrorKind,
[INFO] [stdout] 22 | |         StoreReadError          => "Store read error",
[INFO] [stdout] 23 | |         StoreWriteError         => "Store write error",
[INFO] [stdout] 24 | |         IOError                 => "IO Error",
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |         RefHashingError => "Error while hashing"
[INFO] [stdout] 49 | |     );
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/flags.rs:53:34
[INFO] [stdout]    |
[INFO] [stdout] 53 |             content_hashing:     try!(get_field(v, "ref.flags.content_hashing")),
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/flags.rs:54:34
[INFO] [stdout]    |
[INFO] [stdout] 54 |             permission_tracking: try!(get_field(v, "ref.flags.permission_tracking")),
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/hasher.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(c.read_to_string(&mut s).map_err_into(REK::UTF8Error).map_err_into(REK::IOError));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/hashers/nbytes.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |         self.hasher.input_str(&try!(s)[..]);
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             try!(File::open(pb.clone())
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:118:30
[INFO] [stdout]     |
[INFO] [stdout] 118 |                         Some(try!(h.create_hash(&pb, &mut file)))
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:130:30
[INFO] [stdout]     |
[INFO] [stdout] 130 |                         Some(try!(file
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:156:37
[INFO] [stdout]     |
[INFO] [stdout] 156 |                     let path_hash = try!(Ref::hash_path(&can)
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:179:31
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     let fle = try!(store
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:380:28
[INFO] [stdout]     |
[INFO] [stdout] 380 |         let stored_hash  = try!(self.get_stored_hash());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:381:28
[INFO] [stdout]     |
[INFO] [stdout] 381 |         let current_hash = try!(self.get_current_hash());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:394:28
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let current_hash = try!(self.get_current_hash()); // uses the default hasher
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:395:28
[INFO] [stdout]     |
[INFO] [stdout] 395 |         let current_perm = try!(self.get_current_permissions());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         try!(self.0
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:404:9
[INFO] [stdout]     |
[INFO] [stdout] 404 |         try!(self.0
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/reference.rs:445:41
[INFO] [stdout]     |
[INFO] [stdout] 445 |                     let contains_hash = try!(r.to_str()
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/reference.rs:531:22
[INFO] [stdout]     |
[INFO] [stdout] 531 |                     .flatten()
[INFO] [stdout]     |                      ^^^^^^^ multiple `flatten` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 std::iter::Iterator::flatten(search_roots
[INFO] [stdout] 499 |                     .unwrap_or(vec![PathBuf::from("/")])
[INFO] [stdout] 500 |                     .into_iter()
[INFO] [stdout] 501 |                     .map(|root| {
[INFO] [stdout] 502 |                         WalkDir::new(root)
[INFO] [stdout] 503 |                             .follow_links(false)
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 itertools::Itertools::flatten(search_roots
[INFO] [stdout] 499 |                     .unwrap_or(vec![PathBuf::from("/")])
[INFO] [stdout] 500 |                     .into_iter()
[INFO] [stdout] 501 |                     .map(|root| {
[INFO] [stdout] 502 |                         WalkDir::new(root)
[INFO] [stdout] 503 |                             .follow_links(false)
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]    --> src/reference.rs:493:13
[INFO] [stdout]     |
[INFO] [stdout] 493 |         use itertools::Itertools;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout] 28  |     unused_imports,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libimagref`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "758495a644c0844af7165d23c81d75f5b1bd7bf94ea4ffc1447ef48de632bdfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758495a644c0844af7165d23c81d75f5b1bd7bf94ea4ffc1447ef48de632bdfc", kill_on_drop: false }`
[INFO] [stdout] 758495a644c0844af7165d23c81d75f5b1bd7bf94ea4ffc1447ef48de632bdfc