[INFO] fetching crate aprender-data 0.41.0...
[INFO] checking aprender-data-0.41.0 against try#f4690f24e7d9bcb0b168a02b06dd61391e8bd55a for pr-157814-crater-rollup
[INFO] extracting crate aprender-data 0.41.0 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate aprender-data 0.41.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate aprender-data 0.41.0
[INFO] tweaked toml for crates.io crate aprender-data 0.41.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aprender-data 0.41.0 on toolchain f4690f24e7d9bcb0b168a02b06dd61391e8bd55a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate aprender-data 0.41.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63
[INFO] running `Command { std: "docker" "start" "a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63" "/opt/rustwide/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63" "/opt/rustwide/cargo-home/bin/cargo" "+f4690f24e7d9bcb0b168a02b06dd61391e8bd55a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serve/plugin.rs:405:12
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl CoursePlugin {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 404 |     /// Create a new course plugin
[INFO] [stdout] 405 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serve/plugin.rs:687:12
[INFO] [stdout]     |
[INFO] [stdout] 685 | impl BookPlugin {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] 686 |     /// Create a new book plugin
[INFO] [stdout] 687 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serve/plugin.rs:405:12
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl CoursePlugin {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 404 |     /// Create a new course plugin
[INFO] [stdout] 405 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/serve/plugin.rs:687:12
[INFO] [stdout]     |
[INFO] [stdout] 685 | impl BookPlugin {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] 686 |     /// Create a new book plugin
[INFO] [stdout] 687 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 22s
[INFO] running `Command { std: "docker" "inspect" "a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63", kill_on_drop: false }`
[INFO] [stdout] a7fc58bd24f6ec16ae11dcb6369abbfb5206bd8adcf3fe148289c1fab6e6af63
