[INFO] fetching crate astrup 0.0.9...
[INFO] testing astrup-0.0.9 against 1.47.0 for beta-1.48-1
[INFO] extracting crate astrup 0.0.9 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate astrup 0.0.9 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate astrup 0.0.9
[INFO] finished tweaking crates.io crate astrup 0.0.9
[INFO] tweaked toml for crates.io crate astrup 0.0.9 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34a852e28279e46008e0b0b0f253080a9d5f49810baba66690c7cfd3d2f42222
[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" "34a852e28279e46008e0b0b0f253080a9d5f49810baba66690c7cfd3d2f42222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34a852e28279e46008e0b0b0f253080a9d5f49810baba66690c7cfd3d2f42222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a852e28279e46008e0b0b0f253080a9d5f49810baba66690c7cfd3d2f42222", kill_on_drop: false }`
[INFO] [stdout] 34a852e28279e46008e0b0b0f253080a9d5f49810baba66690c7cfd3d2f42222
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.47.0" "build" "--frozen" "--message-format=json", 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] 4eb735e17ef6d03d759c7e7bc5d96cc9171c8f7993044f3e2031d8a5076eedb0
[INFO] running `Command { std: "docker" "start" "-a" "4eb735e17ef6d03d759c7e7bc5d96cc9171c8f7993044f3e2031d8a5076eedb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling gio v0.3.0
[INFO] [stderr]    Compiling c_vec v1.2.1
[INFO] [stderr]    Compiling gdk v0.7.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling gtk v0.3.0
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]    Compiling pango-sys v0.5.0
[INFO] [stderr]    Compiling gdk-sys v0.5.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling atk-sys v0.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling gtk-sys v0.5.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling palette v0.2.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling pango v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling astrup v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/view.rs:65:56
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn add(mut self, mut figure: Figure) -> Result<(Self), Error> {
[INFO] [stdout]    |                                                        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/view.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Ok((self))
[INFO] [stdout]    |            ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/figure.rs:138:49
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn save(self, filename: &str) -> Result<(Self), Error> {
[INFO] [stdout]     |                                                 ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/figure.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |         Ok((self))
[INFO] [stdout]     |            ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/utils.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | /         ((old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stdout] 240 | |          (old_max - old_number) / (old_max - old_min) * new_min)
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 |         (old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stdout] 240 |          (old_max - old_number) / (old_max - old_min) * new_min
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `Command { std: "docker" "inspect" "4eb735e17ef6d03d759c7e7bc5d96cc9171c8f7993044f3e2031d8a5076eedb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eb735e17ef6d03d759c7e7bc5d96cc9171c8f7993044f3e2031d8a5076eedb0", kill_on_drop: false }`
[INFO] [stdout] 4eb735e17ef6d03d759c7e7bc5d96cc9171c8f7993044f3e2031d8a5076eedb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 686b6816361146ff0292255976e858dfbaf4a8e37140fcaefab0c56242007efd
[INFO] running `Command { std: "docker" "start" "-a" "686b6816361146ff0292255976e858dfbaf4a8e37140fcaefab0c56242007efd", kill_on_drop: false }`
[INFO] [stderr]    Compiling astrup v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/view.rs:65:56
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn add(mut self, mut figure: Figure) -> Result<(Self), Error> {
[INFO] [stdout]    |                                                        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/view.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Ok((self))
[INFO] [stdout]    |            ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/figure.rs:138:49
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn save(self, filename: &str) -> Result<(Self), Error> {
[INFO] [stdout]     |                                                 ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/figure.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |         Ok((self))
[INFO] [stdout]     |            ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/utils.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | /         ((old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stdout] 240 | |          (old_max - old_number) / (old_max - old_min) * new_min)
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 |         (old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stdout] 240 |          (old_max - old_number) / (old_max - old_min) * new_min
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/view.rs:65:56
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn add(mut self, mut figure: Figure) -> Result<(Self), Error> {
[INFO] [stdout]    |                                                        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/view.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Ok((self))
[INFO] [stdout]    |            ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/figure.rs:138:49
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn save(self, filename: &str) -> Result<(Self), Error> {
[INFO] [stdout]     |                                                 ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/figure.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |         Ok((self))
[INFO] [stdout]     |            ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/utils.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | /         ((old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stdout] 240 | |          (old_max - old_number) / (old_max - old_min) * new_min)
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 |         (old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stdout] 240 |          (old_max - old_number) / (old_max - old_min) * new_min
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.21s
[INFO] running `Command { std: "docker" "inspect" "686b6816361146ff0292255976e858dfbaf4a8e37140fcaefab0c56242007efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "686b6816361146ff0292255976e858dfbaf4a8e37140fcaefab0c56242007efd", kill_on_drop: false }`
[INFO] [stdout] 686b6816361146ff0292255976e858dfbaf4a8e37140fcaefab0c56242007efd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b7f6376e09e8d1843e7f79b14235648b7a6b7614fdf02b3e0a377deee68608e4
[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" "b7f6376e09e8d1843e7f79b14235648b7a6b7614fdf02b3e0a377deee68608e4", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/view.rs:65:56
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn add(mut self, mut figure: Figure) -> Result<(Self), Error> {
[INFO] [stderr]    |                                                        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/view.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |         Ok((self))
[INFO] [stderr]    |            ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/figure.rs:138:49
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn save(self, filename: &str) -> Result<(Self), Error> {
[INFO] [stderr]     |                                                 ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/figure.rs:156:12
[INFO] [stderr]     |
[INFO] [stderr] 156 |         Ok((self))
[INFO] [stderr]     |            ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/utils.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 | /         ((old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stderr] 240 | |          (old_max - old_number) / (old_max - old_min) * new_min)
[INFO] [stderr]     | |________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 239 |         (old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stderr] 240 |          (old_max - old_number) / (old_max - old_min) * new_min
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/view.rs:65:56
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn add(mut self, mut figure: Figure) -> Result<(Self), Error> {
[INFO] [stderr]    |                                                        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/view.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |         Ok((self))
[INFO] [stderr]    |            ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/figure.rs:138:49
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn save(self, filename: &str) -> Result<(Self), Error> {
[INFO] [stderr]     |                                                 ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/figure.rs:156:12
[INFO] [stderr]     |
[INFO] [stderr] 156 |         Ok((self))
[INFO] [stderr]     |            ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/utils.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 | /         ((old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stderr] 240 | |          (old_max - old_number) / (old_max - old_min) * new_min)
[INFO] [stderr]     | |________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 239 |         (old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stderr] 240 |          (old_max - old_number) / (old_max - old_min) * new_min
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/astrup-1d78ddcf3df5d6ba
[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]    Doc-tests astrup
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/view.rs:65:56
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn add(mut self, mut figure: Figure) -> Result<(Self), Error> {
[INFO] [stderr]    |                                                        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> /opt/rustwide/workdir/src/view.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |         Ok((self))
[INFO] [stderr]    |            ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/figure.rs:138:49
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn save(self, filename: &str) -> Result<(Self), Error> {
[INFO] [stderr]     |                                                 ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> /opt/rustwide/workdir/src/figure.rs:156:12
[INFO] [stderr]     |
[INFO] [stderr] 156 |         Ok((self))
[INFO] [stderr]     |            ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/utils.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 | /         ((old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stderr] 240 | |          (old_max - old_number) / (old_max - old_min) * new_min)
[INFO] [stderr]     | |________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 239 |         (old_number - old_min) / (old_max - old_min) * new_max +
[INFO] [stderr] 240 |          (old_max - old_number) / (old_max - old_min) * new_min
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 12) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'Could not save frontpage_example.png: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout]    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/backtrace/internal.rs:46:44
[INFO] [stdout]    1: failure::backtrace::Backtrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/backtrace/mod.rs:121:35
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/error/error_impl.rs:19:17
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/error/mod.rs:36:18
[INFO] [stdout]    4: astrup::figure::Figure::save
[INFO] [stdout]              at src/figure.rs:153:46
[INFO] [stdout]    5: rust_out::main
[INFO] [stdout]    6: core::ops::function::FnOnce::call_once
[INFO] [stdout]    7: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]    8: std::rt::lang_start::{{closure}}
[INFO] [stdout]    9: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stdout]              at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:259:13
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379:14
[INFO] [stdout]       std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:51:25
[INFO] [stdout]   10: std::rt::lang_start
[INFO] [stdout]   11: main
[INFO] [stdout]   12: __libc_start_main
[INFO] [stdout]   13: _start
[INFO] [stdout] ', src/lib.rs:58:66
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55abf3d3acb0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55abf3d3acb0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55abf3d3acb0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55abf3d3acb0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55abf3d596dc - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x55abf3d392a7 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x55abf3d3ce20 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    7:     0x55abf3d3ce20 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    8:     0x55abf3d3ce20 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]    9:     0x55abf3d3cb6c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stdout]   10:     0x55abf3d3d483 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   11:     0x55abf3d3d059 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stdout]   12:     0x55abf3d3b13c - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   13:     0x55abf3d3d019 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stdout]   14:     0x55abf3d57811 - core::panicking::panic_fmt::h4e2659771ebc78eb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
[INFO] [stdout]   15:     0x55abf3d57633 - core::option::expect_none_failed::h448b58a024c2c33a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221
[INFO] [stdout]   16:     0x55abf3bf6e55 - core::result::Result<T,E>::expect::h8fbf0327b520f988
[INFO] [stdout]   17:     0x55abf3c00874 - rust_out::main::h405f65324f7b53be
[INFO] [stdout]   18:     0x55abf3bf3803 - core::ops::function::FnOnce::call_once::hdcd857a6fc725660
[INFO] [stdout]   19:     0x55abf3bf2ad9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h58530cce963ea820
[INFO] [stdout]   20:     0x55abf3bf2b69 - std::rt::lang_start::{{closure}}::had844b611966ddaf
[INFO] [stdout]   21:     0x55abf3d3d881 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6a3209f124be2235
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:259
[INFO] [stdout]   22:     0x55abf3d3d881 - std::panicking::try::do_call::h88ce358792b64df0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   23:     0x55abf3d3d881 - std::panicking::try::h6311c259678e50fc
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   24:     0x55abf3d3d881 - std::panic::catch_unwind::h56c5716807d659a1
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   25:     0x55abf3d3d881 - std::rt::lang_start_internal::h73711f37ecfcb277
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:51
[INFO] [stdout]   26:     0x55abf3bf2b48 - std::rt::lang_start::h1b0fb7b0bf978bb4
[INFO] [stdout]   27:     0x55abf3c00d0b - main
[INFO] [stdout]   28:     0x7ff170a140b3 - __libc_start_main
[INFO] [stdout]   29:     0x55abf3bf20ae - _start
[INFO] [stdout]   30:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 12)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "b7f6376e09e8d1843e7f79b14235648b7a6b7614fdf02b3e0a377deee68608e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f6376e09e8d1843e7f79b14235648b7a6b7614fdf02b3e0a377deee68608e4", kill_on_drop: false }`
[INFO] [stdout] b7f6376e09e8d1843e7f79b14235648b7a6b7614fdf02b3e0a377deee68608e4
