[INFO] fetching crate dezoomify-rs 2.3.0-beta...
[INFO] testing dezoomify-rs-2.3.0-beta against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate dezoomify-rs 2.3.0-beta into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate dezoomify-rs 2.3.0-beta on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/.cargo/config
[INFO] started tweaking crates.io crate dezoomify-rs 2.3.0-beta
[INFO] finished tweaking crates.io crate dezoomify-rs 2.3.0-beta
[INFO] tweaked toml for crates.io crate dezoomify-rs 2.3.0-beta written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate dezoomify-rs 2.3.0-beta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strength_reduce v0.2.3
[INFO] [stderr]   Downloaded transpose v0.2.0
[INFO] [stderr]   Downloaded transpose v0.1.0
[INFO] [stderr]   Downloaded rustdct v0.4.0
[INFO] [stderr]   Downloaded evalexpr v5.0.5
[INFO] [stderr]   Downloaded img_hash v3.1.0
[INFO] [stderr]   Downloaded image v0.23.6
[INFO] [stderr]   Downloaded rustfft v3.0.1
[INFO] [stderr]   Downloaded png v0.16.6
[INFO] [stderr]   Downloaded sanitize-filename-reader-friendly v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e75669d04d7ac7d814ebe5ac8e8b5e7b2ebf801dd5b3f5a343d0f07ec688e1ee
[INFO] running `Command { std: "docker" "start" "-a" "e75669d04d7ac7d814ebe5ac8e8b5e7b2ebf801dd5b3f5a343d0f07ec688e1ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e75669d04d7ac7d814ebe5ac8e8b5e7b2ebf801dd5b3f5a343d0f07ec688e1ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e75669d04d7ac7d814ebe5ac8e8b5e7b2ebf801dd5b3f5a343d0f07ec688e1ee", kill_on_drop: false }`
[INFO] [stdout] e75669d04d7ac7d814ebe5ac8e8b5e7b2ebf801dd5b3f5a343d0f07ec688e1ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 581299e32233c7c9d3074dc88d906a3b6c4bb5ccfa7ff709aa1c648251b73547
[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" "581299e32233c7c9d3074dc88d906a3b6c4bb5ccfa7ff709aa1c648251b73547", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling adler v0.2.2
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]    Compiling bytemuck v1.2.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.0
[INFO] [stderr]    Compiling sanitize-filename-reader-friendly v0.9.2
[INFO] [stderr]    Compiling custom_error v1.7.1
[INFO] [stderr]    Compiling evalexpr v5.0.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling miniz_oxide v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling termios v0.3.2
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[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling tiff v0.5.0
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[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling png v0.16.6
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling indicatif v0.15.0
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[INFO] [stderr]    Compiling block-modes v0.5.0
[INFO] [stderr]    Compiling crossterm v0.16.0
[INFO] [stderr]    Compiling sha-1 v0.9.1
[INFO] [stderr]    Compiling async-compression v0.3.5
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling aes v0.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling colour v0.5.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling image v0.23.6
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling serde-xml-rs v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling hyper v0.13.6
[INFO] [stderr]    Compiling human-panic v1.0.3
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.6
[INFO] [stderr]    Compiling dezoomify-rs v2.3.0-beta (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         std::mem::replace(self, next_state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             std::mem::replace(self, next);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/pff/mod.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 21s
[INFO] running `Command { std: "docker" "inspect" "581299e32233c7c9d3074dc88d906a3b6c4bb5ccfa7ff709aa1c648251b73547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "581299e32233c7c9d3074dc88d906a3b6c4bb5ccfa7ff709aa1c648251b73547", kill_on_drop: false }`
[INFO] [stdout] 581299e32233c7c9d3074dc88d906a3b6c4bb5ccfa7ff709aa1c648251b73547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b76568c4902146b77294cee8c169fcc079b31a9a4ee32f6377373e5a641884fc
[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" "b76568c4902146b77294cee8c169fcc079b31a9a4ee32f6377373e5a641884fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling transpose v0.1.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         std::mem::replace(self, next_state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             std::mem::replace(self, next);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/pff/mod.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling transpose v0.2.0
[INFO] [stderr]    Compiling rustfft v3.0.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling rustdct v0.4.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling img_hash v3.1.0
[INFO] [stderr]    Compiling dezoomify-rs v2.3.0-beta (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         std::mem::replace(self, next_state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             std::mem::replace(self, next);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/pff/mod.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 45.63s
[INFO] running `Command { std: "docker" "inspect" "b76568c4902146b77294cee8c169fcc079b31a9a4ee32f6377373e5a641884fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b76568c4902146b77294cee8c169fcc079b31a9a4ee32f6377373e5a641884fc", kill_on_drop: false }`
[INFO] [stdout] b76568c4902146b77294cee8c169fcc079b31a9a4ee32f6377373e5a641884fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d04a94802a7bbb4cf4d9902bd04fccfe7841faa1b302feff74201c998ed95c0
[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" "4d04a94802a7bbb4cf4d9902bd04fccfe7841faa1b302feff74201c998ed95c0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         std::mem::replace(self, next_state);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             std::mem::replace(self, next);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/pff/mod.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/encoder/tile_buffer.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         std::mem::replace(self, next_state);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/generic/dichotomy_2d.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             std::mem::replace(self, next);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/pff/mod.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 std::mem::replace(self, PFF::WithHeader(header_info));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dezoomify_rs-db5a7cf9308208ed
[INFO] [stdout] running 62 tests
[INFO] [stdout] test custom_yaml::variable::tests::variable_iteration ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::all_tiles ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::all_tiles_non_sorted ... ok
[INFO] [stdout] test dezoomer::tests::assert_tiles ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::all_tiles_overlapping_tiles ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::tile0 ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::tile1 ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::finalize_only_tile2 ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::finalize_empty ... ok
[INFO] [stdout] test dzi::dzi_file::test_dzi ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::tile_too_large ... ok
[INFO] [stdout] test encoder::pixel_streamer::tests::tiles_0_and_1 ... ok
[INFO] [stdout] test dzi::test_dzi_with_bom ... ok
[INFO] [stdout] test dzi::test_panorama ... ok
[INFO] [stdout] test generic::dichotomy_2d::test_dichotomy2d ... ok
[INFO] [stdout] test custom_yaml::tile_set::tests::url_template_evaluation ... ok
[INFO] [stdout] test generic::dichotomy_2d::test_dichotomy1d ... ok
[INFO] [stdout] test custom_yaml::test_has_default_user_agent ... ok
[INFO] [stdout] test custom_yaml::test_can_parse_example ... ok
[INFO] [stdout] test custom_yaml::tile_set::tests::tileset_from_yaml ... ok
[INFO] [stdout] test google_arts_and_culture::decryption::test_decrypt_dummy ... ok
[INFO] [stdout] test arguments::test_headers_and_input ... ok
[INFO] [stdout] test google_arts_and_culture::url::test_compute_url ... ok
[INFO] [stdout] test google_arts_and_culture::url::test_compute_url_flowers ... ok
[INFO] [stdout] test iiif::test_missing_id ... ok
[INFO] [stdout] test google_arts_and_culture::tile_info::tests::test_xml_parse ... ok
[INFO] [stdout] test iipimage::tests::test_parse_metadata ... ok
[INFO] [stdout] test iiif::test_tiles ... ok
[INFO] [stdout] test iipimage::tests::test_zoom_levels ... ok
[INFO] [stdout] test iiif::test_qualities ... ok
[INFO] [stdout] test iiif::tile_info::test_deserialisation ... ok
[INFO] [stdout] test krpano::krpano_metadata::test::multires_parse ... ok
[INFO] [stdout] test krpano::krpano_metadata::test::test_templatestring ... ok
[INFO] [stdout] test krpano::krpano_metadata::test::parse_xml_cylinder ... ok
[INFO] [stdout] test krpano::krpano_metadata::test::parse_xml_multires ... ok
[INFO] [stdout] test krpano::krpano_metadata::test::parse_xml_old_cube ... ok
[INFO] [stdout] test output_file::tests::test_existing_file ... ok
[INFO] [stdout] test google_arts_and_culture::tile_info::tests::test_parse_html_null ... ok
[INFO] [stdout] test output_file::tests::test_special_chars ... ok
[INFO] [stdout] test output_file::tests::switch_to_png_for_large_files ... ok
[INFO] [stdout] test pff::image_properties::test::test_deserialize_indices_reply ... ok
[INFO] [stdout] test pff::image_properties::test::test_deserialize_pff_header ... ok
[INFO] [stdout] test pff::image_properties::test::test_parse_tile_indices ... ok
[INFO] [stdout] test zoomify::image_properties::test_levels_recount ... ok
[INFO] [stdout] test zoomify::image_properties::test_deserialize ... ok
[INFO] [stdout] test pff::image_properties::test::test_deserialize_pff_header_reply ... ok
[INFO] [stdout] test arguments::test_parse_duration ... ok
[INFO] [stdout] test zoomify::image_properties::test_real_num_tiles ... ok
[INFO] [stdout] test zoomify::test_panorama ... ok
[INFO] [stdout] test zoomify::test_tilegroups ... ok
[INFO] [stdout] test generic::test_url_templating ... ok
[INFO] [stdout] test google_arts_and_culture::decryption::test_decrypt_sample_tile ... ok
[INFO] [stdout] test google_arts_and_culture::tile_info::tests::test_parse_html_wildflower ... ok
[INFO] [stdout] test custom_yaml::variable::tests::variable_validity_check_name ... ok
[INFO] [stdout] test krpano::test_cube ... ok
[INFO] [stdout] test custom_yaml::variable::tests::iter_contexts ... ok
[INFO] [stdout] test encoder::png_encoder::tests::test_png_create ... ok
[INFO] [stdout] test krpano::test_flat_multires ... ok
[INFO] [stdout] test google_arts_and_culture::tile_info::tests::test_parse_html_newformat ... ok
[INFO] [stdout] test google_arts_and_culture::tile_info::tests::test_parse_html ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dezoomify_rs-cf078f8988909e65
[INFO] [stdout] test generic::test_generic_dezoomer ... ok
[INFO] [stdout] test custom_yaml::tile_set::tests::tile_iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 62 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/rustwide/target/debug/deps/local_dezoomifying-2ac63db584539c79
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test custom_size_local_zoomify_tiles ... ignored
[INFO] [stderr]    Doc-tests dezoomify-rs
[INFO] [stdout] test local_generic_tiles ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 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] running `Command { std: "docker" "inspect" "4d04a94802a7bbb4cf4d9902bd04fccfe7841faa1b302feff74201c998ed95c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d04a94802a7bbb4cf4d9902bd04fccfe7841faa1b302feff74201c998ed95c0", kill_on_drop: false }`
[INFO] [stdout] 4d04a94802a7bbb4cf4d9902bd04fccfe7841faa1b302feff74201c998ed95c0
