[INFO] cloning repository https://github.com/qiujiangkun/Markdowner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qiujiangkun/Markdowner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiujiangkun%2FMarkdowner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiujiangkun%2FMarkdowner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c377f2de57908afdb9bd4ec70445658190821bdd
[INFO] checking qiujiangkun/Markdowner against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiujiangkun%2FMarkdowner" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qiujiangkun/Markdowner on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qiujiangkun/Markdowner
[INFO] finished tweaking git repo https://github.com/qiujiangkun/Markdowner
[INFO] tweaked toml for git repo https://github.com/qiujiangkun/Markdowner written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/qiujiangkun/Markdowner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28e979bdad835e4456c67056ad99a73e3c375f98b6dc33af6457b750e25d667c
[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" "28e979bdad835e4456c67056ad99a73e3c375f98b6dc33af6457b750e25d667c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28e979bdad835e4456c67056ad99a73e3c375f98b6dc33af6457b750e25d667c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e979bdad835e4456c67056ad99a73e3c375f98b6dc33af6457b750e25d667c", kill_on_drop: false }`
[INFO] [stdout] 28e979bdad835e4456c67056ad99a73e3c375f98b6dc33af6457b750e25d667c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 022f8b103d3be70b2cbc5711e118f4bb2b62f1446961b58c6499c029c87b6feb
[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" "022f8b103d3be70b2cbc5711e118f4bb2b62f1446961b58c6499c029c87b6feb", kill_on_drop: false }`
[INFO] [stderr]     Checking markdowner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/parser.rs:358:13
[INFO] [stdout]     |
[INFO] [stdout] 358 |         for i in j..buf.len() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_left`
[INFO] [stdout]    --> src/parser.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn trim_left(buf: &mut InnerBuffer) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_right`
[INFO] [stdout]    --> src/parser.rs:363:8
[INFO] [stdout]     |
[INFO] [stdout] 363 |     fn trim_right(buf: &mut InnerBuffer) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim`
[INFO] [stdout]    --> src/parser.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |     fn trim(buf: &mut InnerBuffer) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_line_ending`
[INFO] [stdout]    --> src/parser.rs:488:8
[INFO] [stdout]     |
[INFO] [stdout] 488 |     fn is_line_ending(text: &InnerBuffer, pos: usize) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/parser.rs:358:13
[INFO] [stdout]     |
[INFO] [stdout] 358 |         for i in j..buf.len() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_left`
[INFO] [stdout]    --> src/parser.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn trim_left(buf: &mut InnerBuffer) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_right`
[INFO] [stdout]    --> src/parser.rs:363:8
[INFO] [stdout]     |
[INFO] [stdout] 363 |     fn trim_right(buf: &mut InnerBuffer) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim`
[INFO] [stdout]    --> src/parser.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |     fn trim(buf: &mut InnerBuffer) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_line_ending`
[INFO] [stdout]    --> src/parser.rs:488:8
[INFO] [stdout]     |
[INFO] [stdout] 488 |     fn is_line_ending(text: &InnerBuffer, pos: usize) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "022f8b103d3be70b2cbc5711e118f4bb2b62f1446961b58c6499c029c87b6feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022f8b103d3be70b2cbc5711e118f4bb2b62f1446961b58c6499c029c87b6feb", kill_on_drop: false }`
[INFO] [stdout] 022f8b103d3be70b2cbc5711e118f4bb2b62f1446961b58c6499c029c87b6feb