[INFO] fetching crate medina 0.0.2-alpha.11...
[INFO] checking medina-0.0.2-alpha.11 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate medina 0.0.2-alpha.11 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate medina 0.0.2-alpha.11 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate medina 0.0.2-alpha.11
[INFO] finished tweaking crates.io crate medina 0.0.2-alpha.11
[INFO] tweaked toml for crates.io crate medina 0.0.2-alpha.11 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate medina 0.0.2-alpha.11 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-channel v1.4.1
[INFO] [stderr]   Downloaded plum v0.1.5
[INFO] [stderr]   Downloaded futures-lite v0.1.10
[INFO] [stderr]   Downloaded smol v0.1.18
[INFO] [stderr]   Downloaded blocking v0.4.7
[INFO] [stderr]   Downloaded syn v1.0.38
[INFO] [stderr]   Downloaded async-std v1.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 914c0f02c3844488ac46c132a5a41c72d822a3781646586931c82777756c6a49
[INFO] running `Command { std: "docker" "start" "-a" "914c0f02c3844488ac46c132a5a41c72d822a3781646586931c82777756c6a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "914c0f02c3844488ac46c132a5a41c72d822a3781646586931c82777756c6a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914c0f02c3844488ac46c132a5a41c72d822a3781646586931c82777756c6a49", kill_on_drop: false }`
[INFO] [stdout] 914c0f02c3844488ac46c132a5a41c72d822a3781646586931c82777756c6a49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35a908e617a6ad5e23a1a6993e6e8b7160e85bb936b014f6e096d6c69cd9b482
[INFO] running `Command { std: "docker" "start" "-a" "35a908e617a6ad5e23a1a6993e6e8b7160e85bb936b014f6e096d6c69cd9b482", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking async-mutex v1.1.5
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking async-channel v1.4.1
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking plum v0.1.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking medina v0.0.2-alpha.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `async_mutex::Mutex`
[INFO] [stdout]  --> src/crawler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_mutex::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `event_listener::Event`
[INFO] [stdout]  --> src/crawler.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use event_listener::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::FutureExt`
[INFO] [stdout]  --> src/crawler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::select`
[INFO] [stdout]  --> src/crawler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::select;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/crawler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::task_runner::TaskRunner`
[INFO] [stdout]   --> src/crawler.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::task_runner::TaskRunner;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_mutex::Mutex`
[INFO] [stdout]  --> src/crawler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_mutex::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `event_listener::Event`
[INFO] [stdout]  --> src/crawler.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use event_listener::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::FutureExt`
[INFO] [stdout]  --> src/crawler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::select`
[INFO] [stdout]  --> src/crawler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::select;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/crawler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::task_runner::TaskRunner`
[INFO] [stdout]   --> src/crawler.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::task_runner::TaskRunner;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `pop_item`, `process_request_with_retry`, and `crawl` are never used
[INFO] [stdout]    --> src/crawler.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 36  | impl Crawler {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn pop_item(&mut self) -> Option<Box<dyn Page>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     async fn process_request_with_retry(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     async fn crawl(
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskRunner` is never constructed
[INFO] [stdout]  --> src/task_runner.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct TaskRunner {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `run` are never used
[INFO] [stdout]   --> src/task_runner.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl TaskRunner {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub async fn run(tasks_mutex: &(Mutex<TaskRunner>, Event)) {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `pop_item`, `process_request_with_retry`, and `crawl` are never used
[INFO] [stdout]    --> src/crawler.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 36  | impl Crawler {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn pop_item(&mut self) -> Option<Box<dyn Page>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     async fn process_request_with_retry(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     async fn crawl(
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskRunner` is never constructed
[INFO] [stdout]  --> src/task_runner.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct TaskRunner {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `run` are never used
[INFO] [stdout]   --> src/task_runner.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl TaskRunner {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub async fn run(tasks_mutex: &(Mutex<TaskRunner>, Event)) {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `async_std`
[INFO] [stdout]  --> examples/fake_page_async_std.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_std::task;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `async_std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]   --> examples/fake_page_tokio.rs:64:3
[INFO] [stdout]    |
[INFO] [stdout] 64 | #[tokio::main]
[INFO] [stdout]    |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run` found for struct `Crawler` in the current scope
[INFO] [stdout]   --> examples/fake_page_async_std.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 50 | /         Crawler::with_capacity(50 * 26, 0.0001)
[INFO] [stdout] 51 | |             .set_default_request_rate(5.0)
[INFO] [stdout] 52 | |             .push_item(Box::new(RootPage {
[INFO] [stdout] 53 | |                 url: "https://root.com".to_string(),
[INFO] [stdout] 54 | |             }))
[INFO] [stdout] 55 | |             .run(50, 30)
[INFO] [stdout]    | |             -^^^ method not found in `Crawler`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run` found for struct `Crawler` in the current scope
[INFO] [stdout]   --> examples/fake_page_tokio.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | /     Crawler::with_capacity(1_300, 0.0001)
[INFO] [stdout] 67 | |         .push_item(Box::new(RootPage {
[INFO] [stdout] 68 | |             url: "https://root.com".to_string(),
[INFO] [stdout] 69 | |         }))
[INFO] [stdout] 70 | |         .set_default_request_rate(5.0)
[INFO] [stdout] 71 | |         .run(50, 30)
[INFO] [stdout]    | |         -^^^ method not found in `Crawler`
[INFO] [stdout]    | |_________|
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/fake_page_tokio.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `medina` (example "fake_page_async_std") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `medina` (example "fake_page_tokio") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "35a908e617a6ad5e23a1a6993e6e8b7160e85bb936b014f6e096d6c69cd9b482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a908e617a6ad5e23a1a6993e6e8b7160e85bb936b014f6e096d6c69cd9b482", kill_on_drop: false }`
[INFO] [stdout] 35a908e617a6ad5e23a1a6993e6e8b7160e85bb936b014f6e096d6c69cd9b482
[INFO] checking medina-0.0.2-alpha.11 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate medina 0.0.2-alpha.11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate medina 0.0.2-alpha.11 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate medina 0.0.2-alpha.11
[INFO] finished tweaking crates.io crate medina 0.0.2-alpha.11
[INFO] tweaked toml for crates.io crate medina 0.0.2-alpha.11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate medina 0.0.2-alpha.11 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d49ec26efd1552b452fbb4065c4fe9717fc02ae172b7f22772be4e840c0769a3
[INFO] running `Command { std: "docker" "start" "-a" "d49ec26efd1552b452fbb4065c4fe9717fc02ae172b7f22772be4e840c0769a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d49ec26efd1552b452fbb4065c4fe9717fc02ae172b7f22772be4e840c0769a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d49ec26efd1552b452fbb4065c4fe9717fc02ae172b7f22772be4e840c0769a3", kill_on_drop: false }`
[INFO] [stdout] d49ec26efd1552b452fbb4065c4fe9717fc02ae172b7f22772be4e840c0769a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad9b8dd4185286ec36243832b76ee1131c5b1c84e0e96b3766ec3ea7d225fa28
[INFO] running `Command { std: "docker" "start" "-a" "ad9b8dd4185286ec36243832b76ee1131c5b1c84e0e96b3766ec3ea7d225fa28", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking async-mutex v1.1.5
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking async-channel v1.4.1
[INFO] [stderr]     Checking plum v0.1.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking medina v0.0.2-alpha.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `async_mutex::Mutex`
[INFO] [stdout]  --> src/crawler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_mutex::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `event_listener::Event`
[INFO] [stdout]  --> src/crawler.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use event_listener::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::FutureExt`
[INFO] [stdout]  --> src/crawler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::select`
[INFO] [stdout]  --> src/crawler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::select;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/crawler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::task_runner::TaskRunner`
[INFO] [stdout]   --> src/crawler.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::task_runner::TaskRunner;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_mutex::Mutex`
[INFO] [stdout]  --> src/crawler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_mutex::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `event_listener::Event`
[INFO] [stdout]  --> src/crawler.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use event_listener::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::FutureExt`
[INFO] [stdout]  --> src/crawler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::select`
[INFO] [stdout]  --> src/crawler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::select;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/crawler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::task_runner::TaskRunner`
[INFO] [stdout]   --> src/crawler.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::task_runner::TaskRunner;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `pop_item`, `process_request_with_retry`, and `crawl` are never used
[INFO] [stdout]    --> src/crawler.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 36  | impl Crawler {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn pop_item(&mut self) -> Option<Box<dyn Page>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     async fn process_request_with_retry(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     async fn crawl(
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskRunner` is never constructed
[INFO] [stdout]  --> src/task_runner.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct TaskRunner {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `run` are never used
[INFO] [stdout]   --> src/task_runner.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl TaskRunner {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub async fn run(tasks_mutex: &(Mutex<TaskRunner>, Event)) {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `pop_item`, `process_request_with_retry`, and `crawl` are never used
[INFO] [stdout]    --> src/crawler.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 36  | impl Crawler {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn pop_item(&mut self) -> Option<Box<dyn Page>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     async fn process_request_with_retry(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     async fn crawl(
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskRunner` is never constructed
[INFO] [stdout]  --> src/task_runner.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct TaskRunner {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `run` are never used
[INFO] [stdout]   --> src/task_runner.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl TaskRunner {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub async fn run(tasks_mutex: &(Mutex<TaskRunner>, Event)) {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `async_std`
[INFO] [stdout]  --> examples/fake_page_async_std.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_std::task;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `async_std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]   --> examples/fake_page_tokio.rs:64:3
[INFO] [stdout]    |
[INFO] [stdout] 64 | #[tokio::main]
[INFO] [stdout]    |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run` found for struct `Crawler` in the current scope
[INFO] [stdout]   --> examples/fake_page_async_std.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 50 | /         Crawler::with_capacity(50 * 26, 0.0001)
[INFO] [stdout] 51 | |             .set_default_request_rate(5.0)
[INFO] [stdout] 52 | |             .push_item(Box::new(RootPage {
[INFO] [stdout] 53 | |                 url: "https://root.com".to_string(),
[INFO] [stdout] 54 | |             }))
[INFO] [stdout] 55 | |             .run(50, 30)
[INFO] [stdout]    | |             -^^^ method not found in `Crawler`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `run` found for struct `Crawler` in the current scope
[INFO] [stdout]   --> examples/fake_page_tokio.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | /     Crawler::with_capacity(1_300, 0.0001)
[INFO] [stdout] 67 | |         .push_item(Box::new(RootPage {
[INFO] [stdout] 68 | |             url: "https://root.com".to_string(),
[INFO] [stdout] 69 | |         }))
[INFO] [stdout] 70 | |         .set_default_request_rate(5.0)
[INFO] [stdout] 71 | |         .run(50, 30)
[INFO] [stdout]    | |         -^^^ method not found in `Crawler`
[INFO] [stdout]    | |_________|
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/fake_page_tokio.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `medina` (example "fake_page_async_std") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `medina` (example "fake_page_tokio") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ad9b8dd4185286ec36243832b76ee1131c5b1c84e0e96b3766ec3ea7d225fa28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9b8dd4185286ec36243832b76ee1131c5b1c84e0e96b3766ec3ea7d225fa28", kill_on_drop: false }`
[INFO] [stdout] ad9b8dd4185286ec36243832b76ee1131c5b1c84e0e96b3766ec3ea7d225fa28
