[INFO] fetching crate markdownrs 0.1.1-beta...
[INFO] checking markdownrs-0.1.1-beta against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate markdownrs 0.1.1-beta into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate markdownrs 0.1.1-beta on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate markdownrs 0.1.1-beta
[INFO] finished tweaking crates.io crate markdownrs 0.1.1-beta
[INFO] tweaked toml for crates.io crate markdownrs 0.1.1-beta written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 495cf612e9282bbea773e5f56ae5753fa613e86cc912a4e2cd8a6b2473c3e231
[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" "495cf612e9282bbea773e5f56ae5753fa613e86cc912a4e2cd8a6b2473c3e231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "495cf612e9282bbea773e5f56ae5753fa613e86cc912a4e2cd8a6b2473c3e231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "495cf612e9282bbea773e5f56ae5753fa613e86cc912a4e2cd8a6b2473c3e231", kill_on_drop: false }`
[INFO] [stdout] 495cf612e9282bbea773e5f56ae5753fa613e86cc912a4e2cd8a6b2473c3e231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2eca9cb63e7073b65c6eb879636f21450e705924c6cd329145f90eb9e309f1df
[INFO] running `Command { std: "docker" "start" "-a" "2eca9cb63e7073b65c6eb879636f21450e705924c6cd329145f90eb9e309f1df", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking markdownrs v0.1.1-beta (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `STX`
[INFO] [stdout]  --> src/util.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const STX:char = '\u{0002}';  // Use STX ("Start of text") for start-of-placeholder
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ETX`
[INFO] [stdout]  --> src/util.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const ETX:char = '\u{0003}'; // Use ETX ("End of text") for end-of-placeholder
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INLINE_PLACEHOLDER_PREFIX`
[INFO] [stdout]  --> src/util.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INLINE_PLACEHOLDER_PREFIX: &str = "\u{0002}klzzwxh:";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INLINE_PLACEHOLDER_RE`
[INFO] [stdout]  --> src/util.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const INLINE_PLACEHOLDER_RE: &str = "\u{0002}klzzwxh:([0-9]+)\u{0003}";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `AMP_SUBSTITUTE`
[INFO] [stdout]   --> src/util.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const AMP_SUBSTITUTE: &str = "\u{0002}amp\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HTML_PLACEHOLDER_START`
[INFO] [stdout]   --> src/util.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const HTML_PLACEHOLDER_START: &str = "\u{0002}wzxhzdk:";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HTML_PLACEHOLDER_END`
[INFO] [stdout]   --> src/util.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const HTML_PLACEHOLDER_END: &str = "\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HTML_PLACEHOLDER_RE`
[INFO] [stdout]   --> src/util.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const HTML_PLACEHOLDER_RE: &str = "\u{0003}wzxhzdk:([0-9]+)\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TAG_PLACEHOLDER_START`
[INFO] [stdout]   --> src/util.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const TAG_PLACEHOLDER_START: &str = "\u{0002}hzzhzkh:";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TAG_PLACEHOLDER_END`
[INFO] [stdout]   --> src/util.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const TAG_PLACEHOLDER_END: &str = "\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Tag`
[INFO] [stdout]   --> src/util.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Tag {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `HtmlStash`
[INFO] [stdout]   --> src/util.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct HtmlStash {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new() -> HtmlStash{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store`
[INFO] [stdout]   --> src/util.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn store(&mut self, html:String) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/util.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_placeholder`
[INFO] [stdout]   --> src/util.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_placeholder(&self, key:&str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_tag`
[INFO] [stdout]   --> src/util.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn store_tag(&mut self, tag:String, attrs:Vec<String>, left_index:u32, right_index:u32) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `STX`
[INFO] [stdout]  --> src/util.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const STX:char = '\u{0002}';  // Use STX ("Start of text") for start-of-placeholder
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ETX`
[INFO] [stdout]  --> src/util.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const ETX:char = '\u{0003}'; // Use ETX ("End of text") for end-of-placeholder
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INLINE_PLACEHOLDER_PREFIX`
[INFO] [stdout]  --> src/util.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INLINE_PLACEHOLDER_PREFIX: &str = "\u{0002}klzzwxh:";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INLINE_PLACEHOLDER_RE`
[INFO] [stdout]  --> src/util.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const INLINE_PLACEHOLDER_RE: &str = "\u{0002}klzzwxh:([0-9]+)\u{0003}";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `AMP_SUBSTITUTE`
[INFO] [stdout]   --> src/util.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const AMP_SUBSTITUTE: &str = "\u{0002}amp\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HTML_PLACEHOLDER_START`
[INFO] [stdout]   --> src/util.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const HTML_PLACEHOLDER_START: &str = "\u{0002}wzxhzdk:";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HTML_PLACEHOLDER_END`
[INFO] [stdout]   --> src/util.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const HTML_PLACEHOLDER_END: &str = "\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HTML_PLACEHOLDER_RE`
[INFO] [stdout]   --> src/util.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const HTML_PLACEHOLDER_RE: &str = "\u{0003}wzxhzdk:([0-9]+)\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TAG_PLACEHOLDER_START`
[INFO] [stdout]   --> src/util.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const TAG_PLACEHOLDER_START: &str = "\u{0002}hzzhzkh:";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TAG_PLACEHOLDER_END`
[INFO] [stdout]   --> src/util.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const TAG_PLACEHOLDER_END: &str = "\u{0003}";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Tag`
[INFO] [stdout]   --> src/util.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Tag {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `HtmlStash`
[INFO] [stdout]   --> src/util.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct HtmlStash {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new() -> HtmlStash{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store`
[INFO] [stdout]   --> src/util.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn store(&mut self, html:String) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/util.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_placeholder`
[INFO] [stdout]   --> src/util.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_placeholder(&self, key:&str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_tag`
[INFO] [stdout]   --> src/util.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn store_tag(&mut self, tag:String, attrs:Vec<String>, left_index:u32, right_index:u32) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "2eca9cb63e7073b65c6eb879636f21450e705924c6cd329145f90eb9e309f1df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eca9cb63e7073b65c6eb879636f21450e705924c6cd329145f90eb9e309f1df", kill_on_drop: false }`
[INFO] [stdout] 2eca9cb63e7073b65c6eb879636f21450e705924c6cd329145f90eb9e309f1df