[INFO] updating cached repository https://github.com/joshuazlin/hamiltonian-crossing-paths
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fa5494bdda2d985a6a27833622785244f5c171d
[INFO] testing joshuazlin/hamiltonian-crossing-paths against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuazlin%2Fhamiltonian-crossing-paths" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshuazlin/hamiltonian-crossing-paths on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joshuazlin/hamiltonian-crossing-paths
[INFO] finished tweaking git repo https://github.com/joshuazlin/hamiltonian-crossing-paths
[INFO] tweaked toml for git repo https://github.com/joshuazlin/hamiltonian-crossing-paths written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuazlin/hamiltonian-crossing-paths already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7d5f09947ea1335b41046d06d051f0475f24463d9f84b51206b2b47573dbc3d
[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" "e7d5f09947ea1335b41046d06d051f0475f24463d9f84b51206b2b47573dbc3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7d5f09947ea1335b41046d06d051f0475f24463d9f84b51206b2b47573dbc3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7d5f09947ea1335b41046d06d051f0475f24463d9f84b51206b2b47573dbc3d", kill_on_drop: false }`
[INFO] [stdout] e7d5f09947ea1335b41046d06d051f0475f24463d9f84b51206b2b47573dbc3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15c17e4125cb553795eb643b80cf80e809660cd51a33bc2b6b818c2e47d71a69
[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" "15c17e4125cb553795eb643b80cf80e809660cd51a33bc2b6b818c2e47d71a69", 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 num-rational v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling piston2d-graphics v0.36.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling image v0.23.6
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling winit v0.19.5
[INFO] [stderr]    Compiling piston-gfx_texture v0.41.0
[INFO] [stderr]    Compiling pistoncore-input v0.28.1
[INFO] [stderr]    Compiling glutin v0.21.2
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.68.0
[INFO] [stderr]    Compiling pistoncore-window v0.45.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.50.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.64.0
[INFO] [stderr]    Compiling piston v0.50.0
[INFO] [stderr]    Compiling piston_window v0.109.0
[INFO] [stderr]    Compiling point_set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `window` should have an upper camel case name
[INFO] [stdout]   --> src/static_window.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct window {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Window`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dashed`
[INFO] [stdout]   --> src/static_window.rs:46:61
[INFO] [stdout]    |
[INFO] [stdout] 46 |             GraphicsElement::LineElement{x1,y1,x2,y2,radius,dashed,c} => line(c.to_rgb(),*radius,[*x1,*y1,*x2,*y2],t, g),
[INFO] [stdout]    |                                                             ^^^^^^ help: try ignoring the field: `dashed: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/static_window.rs:83:38
[INFO] [stdout]    |
[INFO] [stdout] 83 |             self.window.draw_2d(&e, |c,g,_| {clear([1.0;4],g)});
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `White`
[INFO] [stdout]   --> src/static_window.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     White,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/static_window.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Green,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Blue`
[INFO] [stdout]   --> src/static_window.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Blue,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opengl`
[INFO] [stdout]   --> src/static_window.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     opengl: OpenGL, // OpenGL drawing backend.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "15c17e4125cb553795eb643b80cf80e809660cd51a33bc2b6b818c2e47d71a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c17e4125cb553795eb643b80cf80e809660cd51a33bc2b6b818c2e47d71a69", kill_on_drop: false }`
[INFO] [stdout] 15c17e4125cb553795eb643b80cf80e809660cd51a33bc2b6b818c2e47d71a69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b09fccef67c5b824d1b4ea1d62e8d65233770de1118c8c534e84142637cce229
[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" "b09fccef67c5b824d1b4ea1d62e8d65233770de1118c8c534e84142637cce229", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling point_set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `window` should have an upper camel case name
[INFO] [stdout]   --> src/static_window.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct window {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Window`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/static_window.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dashed`
[INFO] [stdout]   --> src/static_window.rs:46:61
[INFO] [stdout]    |
[INFO] [stdout] 46 |             GraphicsElement::LineElement{x1,y1,x2,y2,radius,dashed,c} => line(c.to_rgb(),*radius,[*x1,*y1,*x2,*y2],t, g),
[INFO] [stdout]    |                                                             ^^^^^^ help: try ignoring the field: `dashed: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/static_window.rs:83:38
[INFO] [stdout]    |
[INFO] [stdout] 83 |             self.window.draw_2d(&e, |c,g,_| {clear([1.0;4],g)});
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `White`
[INFO] [stdout]   --> src/static_window.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     White,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/static_window.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Green,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Blue`
[INFO] [stdout]   --> src/static_window.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Blue,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opengl`
[INFO] [stdout]   --> src/static_window.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     opengl: OpenGL, // OpenGL drawing backend.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "b09fccef67c5b824d1b4ea1d62e8d65233770de1118c8c534e84142637cce229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b09fccef67c5b824d1b4ea1d62e8d65233770de1118c8c534e84142637cce229", kill_on_drop: false }`
[INFO] [stdout] b09fccef67c5b824d1b4ea1d62e8d65233770de1118c8c534e84142637cce229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b5751bde60e68aa33e62bfba85341938d3d9a5ddc07a67cc1c6f103891403bf
[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" "0b5751bde60e68aa33e62bfba85341938d3d9a5ddc07a67cc1c6f103891403bf", 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] warning: type `window` should have an upper camel case name
[INFO] [stderr]   --> src/static_window.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub struct window {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Window`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/static_window.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dashed`
[INFO] [stderr]   --> src/static_window.rs:46:61
[INFO] [stderr]    |
[INFO] [stderr] 46 |             GraphicsElement::LineElement{x1,y1,x2,y2,radius,dashed,c} => line(c.to_rgb(),*radius,[*x1,*y1,*x2,*y2],t, g),
[INFO] [stderr]    |                                                             ^^^^^^ help: try ignoring the field: `dashed: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/static_window.rs:83:38
[INFO] [stderr]    |
[INFO] [stderr] 83 |             self.window.draw_2d(&e, |c,g,_| {clear([1.0;4],g)});
[INFO] [stderr]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `White`
[INFO] [stderr]   --> src/static_window.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     White,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Green`
[INFO] [stderr]   --> src/static_window.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Green,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blue`
[INFO] [stderr]   --> src/static_window.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Blue,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `opengl`
[INFO] [stderr]   --> src/static_window.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     opengl: OpenGL, // OpenGL drawing backend.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/point_set-1eba96aadcdba295
[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" "0b5751bde60e68aa33e62bfba85341938d3d9a5ddc07a67cc1c6f103891403bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5751bde60e68aa33e62bfba85341938d3d9a5ddc07a67cc1c6f103891403bf", kill_on_drop: false }`
[INFO] [stdout] 0b5751bde60e68aa33e62bfba85341938d3d9a5ddc07a67cc1c6f103891403bf