[INFO] fetching crate plotlib 0.5.1...
[INFO] testing plotlib-0.5.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate plotlib 0.5.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate plotlib 0.5.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plotlib 0.5.1
[INFO] finished tweaking crates.io crate plotlib 0.5.1
[INFO] tweaked toml for crates.io crate plotlib 0.5.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate crates.io crate plotlib 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svg v0.7.1
[INFO] [stderr]   Downloaded failure_derive v0.1.7
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded failure v0.1.7
[INFO] [stderr]   Downloaded backtrace-sys v0.1.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a495a94f4c309a8e16d6fe91ac430738b0ee8e53e993e16a6f54c3895f2639d1
[INFO] running `Command { std: "docker" "start" "-a" "a495a94f4c309a8e16d6fe91ac430738b0ee8e53e993e16a6f54c3895f2639d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a495a94f4c309a8e16d6fe91ac430738b0ee8e53e993e16a6f54c3895f2639d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a495a94f4c309a8e16d6fe91ac430738b0ee8e53e993e16a6f54c3895f2639d1", kill_on_drop: false }`
[INFO] [stdout] a495a94f4c309a8e16d6fe91ac430738b0ee8e53e993e16a6f54c3895f2639d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c098c577adefff2825ccd9dccb71bceb7afdf458243ecda94b34421f4a6329b8
[INFO] running `Command { std: "docker" "start" "-a" "c098c577adefff2825ccd9dccb71bceb7afdf458243ecda94b34421f4a6329b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling svg v0.7.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling plotlib v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line_style`
[INFO] [stdout]    --> src/repr/plot.rs:182:38
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stdout]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.89s
[INFO] running `Command { std: "docker" "inspect" "c098c577adefff2825ccd9dccb71bceb7afdf458243ecda94b34421f4a6329b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c098c577adefff2825ccd9dccb71bceb7afdf458243ecda94b34421f4a6329b8", kill_on_drop: false }`
[INFO] [stdout] c098c577adefff2825ccd9dccb71bceb7afdf458243ecda94b34421f4a6329b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25382c7b8aeb72ad5463162651d9b2fe8a0817afa3a6c3d63c756d55fcca8f7b
[INFO] running `Command { std: "docker" "start" "-a" "25382c7b8aeb72ad5463162651d9b2fe8a0817afa3a6c3d63c756d55fcca8f7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling plotlib v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line_style`
[INFO] [stdout]    --> src/repr/plot.rs:182:38
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stdout]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line_style`
[INFO] [stdout]    --> src/repr/plot.rs:182:38
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stdout]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "25382c7b8aeb72ad5463162651d9b2fe8a0817afa3a6c3d63c756d55fcca8f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25382c7b8aeb72ad5463162651d9b2fe8a0817afa3a6c3d63c756d55fcca8f7b", kill_on_drop: false }`
[INFO] [stdout] 25382c7b8aeb72ad5463162651d9b2fe8a0817afa3a6c3d63c756d55fcca8f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3bb04dfada47934b77e11ceb5b18ff5a263504b0ab9dc9e03dd146f49dfbdd33
[INFO] running `Command { std: "docker" "start" "-a" "3bb04dfada47934b77e11ceb5b18ff5a263504b0ab9dc9e03dd146f49dfbdd33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `line_style`
[INFO] [stderr]    --> src/repr/plot.rs:182:38
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stderr]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `plotlib` (lib) generated 1 warning
[INFO] [stderr] warning: `plotlib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/plotlib-45e5747c1d20c347)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test axis::tests::test_number_of_ticks ... ok
[INFO] [stdout] test axis::tests::test_tick_step_generator ... ok
[INFO] [stdout] test axis::tests::test_calculate_tick_step_for_range ... ok
[INFO] [stdout] test repr::histogram::tests::test_histogram_define_bin_bounds ... ok
[INFO] [stdout] test repr::histogram::tests::test_histogram_from_slice ... ok
[INFO] [stdout] test style::tests::test_linestyle_plain_overlay ... ok
[INFO] [stdout] test svg_render::tests::test_value_to_face_offset ... ok
[INFO] [stdout] test axis::tests::test_calculate_ticks ... ok
[INFO] [stdout] test text_render::tests::test_empty_face ... ok
[INFO] [stdout] test text_render::tests::test_bins_for_cells ... ok
[INFO] [stdout] test text_render::tests::test_overlay ... ok
[INFO] [stdout] test text_render::tests::test_render_face_points ... ok
[INFO] [stdout] test text_render::tests::test_render_x_axis_strings ... ok
[INFO] [stdout] test text_render::tests::test_render_face_bars ... ok
[INFO] [stdout] test text_render::tests::test_value_to_axis_cell_offset ... ok
[INFO] [stdout] test text_render::tests::test_render_y_axis_strings ... ok
[INFO] [stdout] test text_render::tests::test_x_axis_label ... ok
[INFO] [stdout] test utils::tests::test_mean ... ok
[INFO] [stdout] test utils::tests::test_median ... ok
[INFO] [stdout] test utils::tests::test_pad_range_to_zero ... ok
[INFO] [stdout] test utils::tests::test_pairwise ... ok
[INFO] [stdout] test utils::tests::test_quartiles ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_no_data.rs (/opt/rustwide/target/debug/deps/test_no_data-a938058a3de1adf3)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_data_with_one_length_and_autoscaling_axes_limits ... ok
[INFO] [stdout] test test_data_with_no_length ... ok
[INFO] [stdout] test test_data_with_one_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests plotlib
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/repr/histogram.rs - repr::histogram (line 6) ... ok
[INFO] [stdout] test src/grid.rs - grid (line 15) ... ok
[INFO] [stdout] test src/repr/plot.rs - repr::plot (line 3) ... ok
[INFO] [stdout] test src/repr/barchart.rs - repr::barchart (line 6) ... ok
[INFO] [stdout] test src/repr/boxplot.rs - repr::boxplot (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3bb04dfada47934b77e11ceb5b18ff5a263504b0ab9dc9e03dd146f49dfbdd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb04dfada47934b77e11ceb5b18ff5a263504b0ab9dc9e03dd146f49dfbdd33", kill_on_drop: false }`
[INFO] [stdout] 3bb04dfada47934b77e11ceb5b18ff5a263504b0ab9dc9e03dd146f49dfbdd33