[INFO] cloning repository https://github.com/mk0218/mdparser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mk0218/mdparser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk0218%2Fmdparser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk0218%2Fmdparser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac1299851fb92cb9043d2cfb63a0c56d1a9c7512
[INFO] testing mk0218/mdparser against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk0218%2Fmdparser" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mk0218/mdparser
[INFO] finished tweaking git repo https://github.com/mk0218/mdparser
[INFO] tweaked toml for git repo https://github.com/mk0218/mdparser written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mk0218/mdparser on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mk0218/mdparser 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cdf9fdc38e8ecab295b6fb65fe678e32b051411a3e955bd3fcffcb41a1adb5c
[INFO] running `Command { std: "docker" "start" "-a" "2cdf9fdc38e8ecab295b6fb65fe678e32b051411a3e955bd3fcffcb41a1adb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cdf9fdc38e8ecab295b6fb65fe678e32b051411a3e955bd3fcffcb41a1adb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cdf9fdc38e8ecab295b6fb65fe678e32b051411a3e955bd3fcffcb41a1adb5c", kill_on_drop: false }`
[INFO] [stdout] 2cdf9fdc38e8ecab295b6fb65fe678e32b051411a3e955bd3fcffcb41a1adb5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0bc476e67817365ff8e10e4517c616f3b558285961c0f0cdccf848f58bcaa8
[INFO] running `Command { std: "docker" "start" "-a" "6a0bc476e67817365ff8e10e4517c616f3b558285961c0f0cdccf848f58bcaa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdparser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |     H(u8),
[INFO] [stdout]    |     - ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BlockSyntax` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 25 -     H(u8),
[INFO] [stdout] 25 +     H(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `syntax` and `content` are never read
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Block {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 36 |     syntax: BlockSyntax,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 37 |     content: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_str` is never used
[INFO] [stdout]   --> src/main.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Block {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 41 |     fn push_str(&mut self, s: &str) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/main.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Buffer {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn clear(&mut self) -> &mut Buffer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `flush` is never used
[INFO] [stdout]    --> src/main.rs:188:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl LineReader {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn flush(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "6a0bc476e67817365ff8e10e4517c616f3b558285961c0f0cdccf848f58bcaa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0bc476e67817365ff8e10e4517c616f3b558285961c0f0cdccf848f58bcaa8", kill_on_drop: false }`
[INFO] [stdout] 6a0bc476e67817365ff8e10e4517c616f3b558285961c0f0cdccf848f58bcaa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48091eeaed3330a6bf4be91eb724da610aad3b0fafd3947a15b3aa5630935d70
[INFO] running `Command { std: "docker" "start" "-a" "48091eeaed3330a6bf4be91eb724da610aad3b0fafd3947a15b3aa5630935d70", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdparser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |     H(u8),
[INFO] [stdout]    |     - ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BlockSyntax` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 25 -     H(u8),
[INFO] [stdout] 25 +     H(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `syntax` and `content` are never read
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Block {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 36 |     syntax: BlockSyntax,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 37 |     content: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_str` is never used
[INFO] [stdout]   --> src/main.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Block {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 41 |     fn push_str(&mut self, s: &str) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/main.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Buffer {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn clear(&mut self) -> &mut Buffer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `flush` is never used
[INFO] [stdout]    --> src/main.rs:188:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl LineReader {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn flush(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "48091eeaed3330a6bf4be91eb724da610aad3b0fafd3947a15b3aa5630935d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48091eeaed3330a6bf4be91eb724da610aad3b0fafd3947a15b3aa5630935d70", kill_on_drop: false }`
[INFO] [stdout] 48091eeaed3330a6bf4be91eb724da610aad3b0fafd3947a15b3aa5630935d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 701cfd55f7f44697be72ccf64535acf8f2326c70a05a6422823d97129ab65271
[INFO] running `Command { std: "docker" "start" "-a" "701cfd55f7f44697be72ccf64535acf8f2326c70a05a6422823d97129ab65271", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/main.rs:25:7
[INFO] [stderr]    |
[INFO] [stderr] 25 |     H(u8),
[INFO] [stderr]    |     - ^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BlockSyntax` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 25 -     H(u8),
[INFO] [stderr] 25 +     H(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `syntax` and `content` are never read
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | struct Block {
[INFO] [stderr]    |        ----- fields in this struct
[INFO] [stderr] 36 |     syntax: BlockSyntax,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 37 |     content: String,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `push_str` is never used
[INFO] [stderr]   --> src/main.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl Block {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 41 |     fn push_str(&mut self, s: &str) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `clear` is never used
[INFO] [stderr]   --> src/main.rs:82:12
[INFO] [stderr]    |
[INFO] [stderr] 69 | impl Buffer {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 82 |     pub fn clear(&mut self) -> &mut Buffer {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `flush` is never used
[INFO] [stderr]    --> src/main.rs:188:8
[INFO] [stderr]     |
[INFO] [stderr] 112 | impl LineReader {
[INFO] [stderr]     | --------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 188 |     fn flush(&mut self) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mdparser` (bin "mdparser" test) generated 5 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mdparser-01c881dc4321b331)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "701cfd55f7f44697be72ccf64535acf8f2326c70a05a6422823d97129ab65271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701cfd55f7f44697be72ccf64535acf8f2326c70a05a6422823d97129ab65271", kill_on_drop: false }`
[INFO] [stdout] 701cfd55f7f44697be72ccf64535acf8f2326c70a05a6422823d97129ab65271