[INFO] fetching crate aprender-data 0.51.0...
[INFO] checking aprender-data-0.51.0 against c397dae808f70caebab1fc4e11b3edf7e59f58c7 for pr-158759-1
[INFO] extracting crate aprender-data 0.51.0 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate aprender-data 0.51.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate aprender-data 0.51.0
[INFO] tweaked toml for crates.io crate aprender-data 0.51.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate aprender-data 0.51.0 on toolchain c397dae808f70caebab1fc4e11b3edf7e59f58c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate aprender-data 0.51.0 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" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 314bc99355f6be544bf4aca11649ba539a689566abba607300974dcf71ea068b
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[INFO] running `Command { std: "docker" "inspect" "314bc99355f6be544bf4aca11649ba539a689566abba607300974dcf71ea068b", 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 34s
[INFO] running `Command { std: "docker" "inspect" "314bc99355f6be544bf4aca11649ba539a689566abba607300974dcf71ea068b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314bc99355f6be544bf4aca11649ba539a689566abba607300974dcf71ea068b", kill_on_drop: false }`
[INFO] [stdout] 314bc99355f6be544bf4aca11649ba539a689566abba607300974dcf71ea068b