[INFO] cloning repository https://github.com/ccapitalK/mdscrape
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ccapitalK/mdscrape" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FccapitalK%2Fmdscrape", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FccapitalK%2Fmdscrape'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f25ad2de1386a3491ca7df91a9b74943812d11e
[INFO] checking ccapitalK/mdscrape against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FccapitalK%2Fmdscrape" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ccapitalK/mdscrape on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ccapitalK/mdscrape
[INFO] finished tweaking git repo https://github.com/ccapitalK/mdscrape
[INFO] tweaked toml for git repo https://github.com/ccapitalK/mdscrape written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ccapitalK/mdscrape 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "45a9fe6c36eeaebeaa5056c38ecf17997e241ac8c1fa2366e8cff0d56057ca30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45a9fe6c36eeaebeaa5056c38ecf17997e241ac8c1fa2366e8cff0d56057ca30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a9fe6c36eeaebeaa5056c38ecf17997e241ac8c1fa2366e8cff0d56057ca30", kill_on_drop: false }`
[INFO] [stdout] 45a9fe6c36eeaebeaa5056c38ecf17997e241ac8c1fa2366e8cff0d56057ca30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de9c2df4a5e047465c7c04e813dec4371058c8c54deaf9fee121da5eaa507ada
[INFO] running `Command { std: "docker" "start" "-a" "de9c2df4a5e047465c7c04e813dec4371058c8c54deaf9fee121da5eaa507ada", kill_on_drop: false }`
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[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/retry.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/retry.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/throttle.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     use super::*;
[INFO] [stdout]     |         -------- the item `Duration` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 135 |         time::Duration,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escape_path_string` is never used
[INFO] [stdout]  --> src/common.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn escape_path_string(s: String) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_chapter`, `end_chapter`, and `ignored_groups` are never read
[INFO] [stdout]   --> src/context.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ScrapeContext {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub start_chapter: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 26 |     pub end_chapter: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |     pub ignored_groups: HashSet<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ScrapeContext` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NoSuchChapter` and `ChapterIsWrongLanguage` are never constructed
[INFO] [stdout]   --> src/retry.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum DownloadError {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 9  |     IOError(std::io::Error),
[INFO] [stdout] 10 |     NoSuchChapter(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     ChapterIsWrongLanguage(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DownloadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RenderTarget` is never used
[INFO] [stdout]  --> src/tui.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum RenderTarget {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `render_info` is never read
[INFO] [stdout]   --> src/tui.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TUI {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 10 |     render_info: Vec<TUIProgressBar>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_progress_bar` and `render` are never used
[INFO] [stdout]   --> src/tui.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl TUI {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 14 |     fn create_progress_bar(&self) -> TUIProgressBar {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn render(&mut self) {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escape_path_string` is never used
[INFO] [stdout]  --> src/common.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn escape_path_string(s: String) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_chapter`, `end_chapter`, and `ignored_groups` are never read
[INFO] [stdout]   --> src/context.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ScrapeContext {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub start_chapter: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 26 |     pub end_chapter: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |     pub ignored_groups: HashSet<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ScrapeContext` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NoSuchChapter` and `ChapterIsWrongLanguage` are never constructed
[INFO] [stdout]   --> src/retry.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum DownloadError {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 9  |     IOError(std::io::Error),
[INFO] [stdout] 10 |     NoSuchChapter(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     ChapterIsWrongLanguage(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DownloadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RenderTarget` is never used
[INFO] [stdout]  --> src/tui.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum RenderTarget {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `render_info` is never read
[INFO] [stdout]   --> src/tui.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TUI {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 10 |     render_info: Vec<TUIProgressBar>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_progress_bar` and `render` are never used
[INFO] [stdout]   --> src/tui.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl TUI {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 14 |     fn create_progress_bar(&self) -> TUIProgressBar {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn render(&mut self) {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.92s
[INFO] running `Command { std: "docker" "inspect" "de9c2df4a5e047465c7c04e813dec4371058c8c54deaf9fee121da5eaa507ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de9c2df4a5e047465c7c04e813dec4371058c8c54deaf9fee121da5eaa507ada", kill_on_drop: false }`
[INFO] [stdout] de9c2df4a5e047465c7c04e813dec4371058c8c54deaf9fee121da5eaa507ada