[INFO] fetching crate plotlib 0.5.1...
[INFO] testing plotlib-0.5.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate plotlib 0.5.1 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate plotlib 0.5.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-87/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" "+1.55.0" "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 failure_derive v0.1.7
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded backtrace-sys v0.1.34
[INFO] [stderr]   Downloaded svg v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fb211cd2c0bce1fa5d0d15059800d12ad6fe8deff33c83f07ff02cff8391c2b
[INFO] running `Command { std: "docker" "start" "-a" "7fb211cd2c0bce1fa5d0d15059800d12ad6fe8deff33c83f07ff02cff8391c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fb211cd2c0bce1fa5d0d15059800d12ad6fe8deff33c83f07ff02cff8391c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb211cd2c0bce1fa5d0d15059800d12ad6fe8deff33c83f07ff02cff8391c2b", kill_on_drop: false }`
[INFO] [stdout] 7fb211cd2c0bce1fa5d0d15059800d12ad6fe8deff33c83f07ff02cff8391c2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 571a5f657f52a68fcafa1bce984d379c7d23bb6ab1f9f7af1d7f29cabc94f093
[INFO] running `Command { std: "docker" "start" "-a" "571a5f657f52a68fcafa1bce984d379c7d23bb6ab1f9f7af1d7f29cabc94f093", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling svg v0.7.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling quote v1.0.3
[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 17.22s
[INFO] running `Command { std: "docker" "inspect" "571a5f657f52a68fcafa1bce984d379c7d23bb6ab1f9f7af1d7f29cabc94f093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "571a5f657f52a68fcafa1bce984d379c7d23bb6ab1f9f7af1d7f29cabc94f093", kill_on_drop: false }`
[INFO] [stdout] 571a5f657f52a68fcafa1bce984d379c7d23bb6ab1f9f7af1d7f29cabc94f093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7932d8df42bd261b150dee79c3ff5166f8b592909846c6f9bc2ad1e89a05474
[INFO] running `Command { std: "docker" "start" "-a" "e7932d8df42bd261b150dee79c3ff5166f8b592909846c6f9bc2ad1e89a05474", 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 15.32s
[INFO] running `Command { std: "docker" "inspect" "e7932d8df42bd261b150dee79c3ff5166f8b592909846c6f9bc2ad1e89a05474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7932d8df42bd261b150dee79c3ff5166f8b592909846c6f9bc2ad1e89a05474", kill_on_drop: false }`
[INFO] [stdout] e7932d8df42bd261b150dee79c3ff5166f8b592909846c6f9bc2ad1e89a05474
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d019b0b06b90b339b7306f0cac78f3788374573c65a3ec8bea450c369780b55
[INFO] running `Command { std: "docker" "start" "-a" "2d019b0b06b90b339b7306f0cac78f3788374573c65a3ec8bea450c369780b55", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `line_style`
[INFO] [stdout] running 22 tests
[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 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/plotlib-7c060f3eb92b08af)
[INFO] [stdout] test repr::histogram::tests::test_histogram_define_bin_bounds ... ok
[INFO] [stdout] test text_render::tests::test_value_to_axis_cell_offset ... ok
[INFO] [stdout] test text_render::tests::test_x_axis_label ... ok
[INFO] [stdout] test svg_render::tests::test_value_to_face_offset ... ok
[INFO] [stdout] test text_render::tests::test_render_face_bars ... ok
[INFO] [stdout] test text_render::tests::test_empty_face ... ok
[INFO] [stdout] test text_render::tests::test_render_x_axis_strings ... ok
[INFO] [stdout] test text_render::tests::test_render_y_axis_strings ... ok
[INFO] [stdout] test repr::histogram::tests::test_histogram_from_slice ... ok
[INFO] [stdout] test text_render::tests::test_render_face_points ... ok
[INFO] [stdout] test axis::tests::test_calculate_tick_step_for_range ... ok
[INFO] [stdout] test style::tests::test_linestyle_plain_overlay ... ok
[INFO] [stdout] test axis::tests::test_tick_step_generator ... ok
[INFO] [stdout] test axis::tests::test_number_of_ticks ... ok
[INFO] [stdout] test text_render::tests::test_bins_for_cells ... ok
[INFO] [stdout] test utils::tests::test_mean ... ok
[INFO] [stdout] test text_render::tests::test_overlay ... ok
[INFO] [stdout] test axis::tests::test_calculate_ticks ... ok
[INFO] [stdout] test utils::tests::test_median ... ok
[INFO] [stdout] test utils::tests::test_pairwise ... ok
[INFO] [stdout] test utils::tests::test_pad_range_to_zero ... 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 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_no_data.rs (/opt/rustwide/target/debug/deps/test_no_data-e1804612e9f4b36e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_data_with_no_length ... ok
[INFO] [stdout] test test_data_with_one_length_and_autoscaling_axes_limits ... ok
[INFO] [stderr]    Doc-tests plotlib
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/repr/boxplot.rs - repr::boxplot (line 5) ... ok
[INFO] [stdout] test src/repr/histogram.rs - repr::histogram (line 5) ... ok
[INFO] [stdout] test src/repr/barchart.rs - repr::barchart (line 5) ... ok
[INFO] [stdout] test src/repr/plot.rs - repr::plot (line 3) ... ok
[INFO] [stdout] test src/grid.rs - grid (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d019b0b06b90b339b7306f0cac78f3788374573c65a3ec8bea450c369780b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d019b0b06b90b339b7306f0cac78f3788374573c65a3ec8bea450c369780b55", kill_on_drop: false }`
[INFO] [stdout] 2d019b0b06b90b339b7306f0cac78f3788374573c65a3ec8bea450c369780b55