[INFO] fetching crate canrust 1.2.1...
[INFO] checking canrust-1.2.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate canrust 1.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate canrust 1.2.1 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 crates.io crate canrust 1.2.1
[INFO] finished tweaking crates.io crate canrust 1.2.1
[INFO] tweaked toml for crates.io crate canrust 1.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbca2075c94893b5459a537f693a1066137f8e6808ac4e5d7ec12b6299d81180
[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" "dbca2075c94893b5459a537f693a1066137f8e6808ac4e5d7ec12b6299d81180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbca2075c94893b5459a537f693a1066137f8e6808ac4e5d7ec12b6299d81180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbca2075c94893b5459a537f693a1066137f8e6808ac4e5d7ec12b6299d81180", kill_on_drop: false }`
[INFO] [stdout] dbca2075c94893b5459a537f693a1066137f8e6808ac4e5d7ec12b6299d81180
[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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fc7239129baf72c331838cef2ca4129ee91e6e07e939135036002cc5ce4ffbb
[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" "8fc7239129baf72c331838cef2ca4129ee91e6e07e939135036002cc5ce4ffbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling sfml-build v0.3.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking const-cstr v0.3.0
[INFO] [stderr]    Compiling csfml-system-sys v0.5.0
[INFO] [stderr]    Compiling csfml-window-sys v0.5.0
[INFO] [stderr]    Compiling csfml-graphics-sys v0.5.0
[INFO] [stderr]    Compiling csfml-audio-sys v0.5.0
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v2.11.1
[INFO] [stderr]     Checking sfml v0.15.1
[INFO] [stderr]     Checking fontconfig v0.2.0
[INFO] [stderr]     Checking canrust v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `canvas::Canvas`
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | use canvas::Canvas;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Canvas` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:40:18
[INFO] [stdout]     |
[INFO] [stdout] 40  |     use canvas::{Canvas, Color, Line, Text};
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 | use canvas::Canvas;
[INFO] [stdout]     |     -------------- the item `Canvas` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Canvas` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:76:18
[INFO] [stdout]     |
[INFO] [stdout] 76  |     use canvas::{Canvas, Color, Text};
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 | use canvas::Canvas;
[INFO] [stdout]     |     -------------- the item `Canvas` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Canvas` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:87:18
[INFO] [stdout]     |
[INFO] [stdout] 87  |     use canvas::{Canvas, Color};
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 | use canvas::Canvas;
[INFO] [stdout]     |     -------------- the item `Canvas` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/canvas/mod.rs:727:37
[INFO] [stdout]     |
[INFO] [stdout] 711 | / ...                   match val {
[INFO] [stdout] 712 | | ...                       Object::Button(b) => {
[INFO] [stdout] 713 | | ...                           let size = b.get_size().unwrap();
[INFO] [stdout] 714 | | ...                           let pos = b.get_position().unwrap();
[INFO] [stdout] ...   |
[INFO] [stdout] 725 | | ...                       _ => return None,
[INFO] [stdout] 726 | | ...                   };
[INFO] [stdout]     | |_______________________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 727 |   ...                   return None;
[INFO] [stdout]     |                         ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `font_path` is never read
[INFO] [stdout]    --> src/canvas/mod.rs:763:33
[INFO] [stdout]     |
[INFO] [stdout] 763 | ...                   let mut font_path = String::new();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `font_path` is never read
[INFO] [stdout]    --> src/canvas/mod.rs:839:33
[INFO] [stdout]     |
[INFO] [stdout] 839 | ...                   let mut font_path = String::new();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]   --> src/utils/mod.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |             let mut ret = String::new();
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/canvas/mod.rs:727:37
[INFO] [stdout]     |
[INFO] [stdout] 711 | / ...                   match val {
[INFO] [stdout] 712 | | ...                       Object::Button(b) => {
[INFO] [stdout] 713 | | ...                           let size = b.get_size().unwrap();
[INFO] [stdout] 714 | | ...                           let pos = b.get_position().unwrap();
[INFO] [stdout] ...   |
[INFO] [stdout] 725 | | ...                       _ => return None,
[INFO] [stdout] 726 | | ...                   };
[INFO] [stdout]     | |_______________________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 727 |   ...                   return None;
[INFO] [stdout]     |                         ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]   --> src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let handler = FontHandler::find_fonts("SourceCodePro".to_string()).unwrap();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]    --> src/lib.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let num = i as f32 * 10.;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `font_path` is never read
[INFO] [stdout]    --> src/canvas/mod.rs:763:33
[INFO] [stdout]     |
[INFO] [stdout] 763 | ...                   let mut font_path = String::new();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `font_path` is never read
[INFO] [stdout]    --> src/canvas/mod.rs:839:33
[INFO] [stdout]     |
[INFO] [stdout] 839 | ...                   let mut font_path = String::new();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]   --> src/utils/mod.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |             let mut ret = String::new();
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_all`
[INFO] [stdout]   --> src/lib.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn test_all() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_fonts`
[INFO] [stdout]   --> src/lib.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn test_fonts() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bind_test`
[INFO] [stdout]   --> src/lib.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn bind_test() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hello`
[INFO] [stdout]    --> src/lib.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn hello(can: &mut Canvas) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.93s
[INFO] running `Command { std: "docker" "inspect" "8fc7239129baf72c331838cef2ca4129ee91e6e07e939135036002cc5ce4ffbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc7239129baf72c331838cef2ca4129ee91e6e07e939135036002cc5ce4ffbb", kill_on_drop: false }`
[INFO] [stdout] 8fc7239129baf72c331838cef2ca4129ee91e6e07e939135036002cc5ce4ffbb
