[INFO] fetching crate web_canvas 0.0.1...
[INFO] checking web_canvas-0.0.1 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate web_canvas 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate web_canvas 0.0.1 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web_canvas 0.0.1
[INFO] finished tweaking crates.io crate web_canvas 0.0.1
[INFO] tweaked toml for crates.io crate web_canvas 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd3da8cf6db9bb74bc1a9a3a8736c46692e7b118d46a97578f7c48ac25ef13f
[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" "4fd3da8cf6db9bb74bc1a9a3a8736c46692e7b118d46a97578f7c48ac25ef13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd3da8cf6db9bb74bc1a9a3a8736c46692e7b118d46a97578f7c48ac25ef13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd3da8cf6db9bb74bc1a9a3a8736c46692e7b118d46a97578f7c48ac25ef13f", kill_on_drop: false }`
[INFO] [stdout] 4fd3da8cf6db9bb74bc1a9a3a8736c46692e7b118d46a97578f7c48ac25ef13f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11728e3b6fce267f8749a6af7bb9386060520759d43ff9dabfb1a608e41e3588
[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" "11728e3b6fce267f8749a6af7bb9386060520759d43ff9dabfb1a608e41e3588", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking js v0.2.7
[INFO] [stderr]     Checking globals v1.0.2
[INFO] [stderr]     Checking web_canvas v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:12:55
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn from_canvas_element(el: impl Into<f64>) -> Box<Canvas2dApi> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^ help: use `dyn`: `dyn Canvas2dApi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:12:55
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn from_canvas_element(el: impl Into<f64>) -> Box<Canvas2dApi> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^ help: use `dyn`: `dyn Canvas2dApi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `el`
[INFO] [stdout]   --> src/lib.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn from_canvas_element(el: impl Into<f64>) -> Box<Canvas2dApi> {
[INFO] [stdout]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_el`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `handle`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     handle: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_canvas_element`
[INFO] [stdout]   --> src/lib.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn from_canvas_element(el: impl Into<f64>) -> Box<Canvas2dApi> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `el`
[INFO] [stdout]   --> src/lib.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn from_canvas_element(el: impl Into<f64>) -> Box<Canvas2dApi> {
[INFO] [stdout]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_el`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `handle`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     handle: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_canvas_element`
[INFO] [stdout]   --> src/lib.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn from_canvas_element(el: impl Into<f64>) -> Box<Canvas2dApi> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "11728e3b6fce267f8749a6af7bb9386060520759d43ff9dabfb1a608e41e3588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11728e3b6fce267f8749a6af7bb9386060520759d43ff9dabfb1a608e41e3588", kill_on_drop: false }`
[INFO] [stdout] 11728e3b6fce267f8749a6af7bb9386060520759d43ff9dabfb1a608e41e3588