[INFO] fetching crate rs-youtube 0.2.2...
[INFO] checking rs-youtube-0.2.2 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate rs-youtube 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rs-youtube 0.2.2 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rs-youtube 0.2.2
[INFO] finished tweaking crates.io crate rs-youtube 0.2.2
[INFO] tweaked toml for crates.io crate rs-youtube 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rs-youtube 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.6
[INFO] [stderr]   Downloaded js-sys v0.3.50
[INFO] [stderr]   Downloaded directories v3.0.2
[INFO] [stderr]   Downloaded ureq v2.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.73
[INFO] [stderr]   Downloaded serde-query-derive v0.1.3
[INFO] [stderr]   Downloaded serde-query v0.1.3
[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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49b18f941c9ce3f72cd8f4e65a3806e03b36a3d3cc4786753ca186a6a4cb840b
[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" "49b18f941c9ce3f72cd8f4e65a3806e03b36a3d3cc4786753ca186a6a4cb840b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49b18f941c9ce3f72cd8f4e65a3806e03b36a3d3cc4786753ca186a6a4cb840b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b18f941c9ce3f72cd8f4e65a3806e03b36a3d3cc4786753ca186a6a4cb840b", kill_on_drop: false }`
[INFO] [stdout] 49b18f941c9ce3f72cd8f4e65a3806e03b36a3d3cc4786753ca186a6a4cb840b
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ee0cd34340c8c8f63f37b92fd227b470919c7d3fbc1315e3b6cd96ca5e27bc2
[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" "0ee0cd34340c8c8f63f37b92fd227b470919c7d3fbc1315e3b6cd96ca5e27bc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling serde-query-derive v0.1.3
[INFO] [stderr]     Checking serde-query v0.1.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ureq v2.1.0
[INFO] [stderr]     Checking rs-youtube v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `return_string`
[INFO] [stdout]   --> src/frontend/generic_menu.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub(crate) return_string: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `description`
[INFO] [stdout]   --> src/backend/youtube/search.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     description: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `video_count`
[INFO] [stdout]   --> src/backend/youtube/search.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     video_count: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `return_string`
[INFO] [stdout]   --> src/frontend/generic_menu.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub(crate) return_string: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `description`
[INFO] [stdout]   --> src/backend/youtube/search.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     description: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `video_count`
[INFO] [stdout]   --> src/backend/youtube/search.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     video_count: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.57s
[INFO] running `Command { std: "docker" "inspect" "0ee0cd34340c8c8f63f37b92fd227b470919c7d3fbc1315e3b6cd96ca5e27bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee0cd34340c8c8f63f37b92fd227b470919c7d3fbc1315e3b6cd96ca5e27bc2", kill_on_drop: false }`
[INFO] [stdout] 0ee0cd34340c8c8f63f37b92fd227b470919c7d3fbc1315e3b6cd96ca5e27bc2