[INFO] cloning repository https://github.com/Keverne/md-prep-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Keverne/md-prep-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeverne%2Fmd-prep-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeverne%2Fmd-prep-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69cb077bc78367a5372ae4cb48a91b3c64ab2f41
[INFO] testing Keverne/md-prep-test against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeverne%2Fmd-prep-test" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Keverne/md-prep-test on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Keverne/md-prep-test
[INFO] finished tweaking git repo https://github.com/Keverne/md-prep-test
[INFO] tweaked toml for git repo https://github.com/Keverne/md-prep-test written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/Keverne/md-prep-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 374f3fa5f479132d96753316224c63216c219c9b9c261a45e2257a16aeb249f6
[INFO] running `Command { std: "docker" "start" "-a" "374f3fa5f479132d96753316224c63216c219c9b9c261a45e2257a16aeb249f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "374f3fa5f479132d96753316224c63216c219c9b9c261a45e2257a16aeb249f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374f3fa5f479132d96753316224c63216c219c9b9c261a45e2257a16aeb249f6", kill_on_drop: false }`
[INFO] [stdout] 374f3fa5f479132d96753316224c63216c219c9b9c261a45e2257a16aeb249f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01c8115e4d3941311d6844b27e7d22f3b0ac320b7542a1c69cf390ec5bb487f7
[INFO] running `Command { std: "docker" "start" "-a" "01c8115e4d3941311d6844b27e7d22f3b0ac320b7542a1c69cf390ec5bb487f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling md-prep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `minim_output`
[INFO] [stdout]   --> src/main.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |             if let Some(minim_output) = minimization.stdout.take() {
[INFO] [stdout]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minim_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heat_output`
[INFO] [stdout]   --> src/main.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 if let Some(heat_output) = first_heat.stdout.take() {
[INFO] [stdout]    |                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heat_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heat_output`
[INFO] [stdout]   --> src/main.rs:79:33
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     if let Some(heat_output) = first_heat.stdout.take() {
[INFO] [stdout]    |                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heat_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.47s
[INFO] running `Command { std: "docker" "inspect" "01c8115e4d3941311d6844b27e7d22f3b0ac320b7542a1c69cf390ec5bb487f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01c8115e4d3941311d6844b27e7d22f3b0ac320b7542a1c69cf390ec5bb487f7", kill_on_drop: false }`
[INFO] [stdout] 01c8115e4d3941311d6844b27e7d22f3b0ac320b7542a1c69cf390ec5bb487f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c0d9f4ea4044cd41b8f951e9fb6a1468303c1589bac0c22563de1be8f25761c
[INFO] running `Command { std: "docker" "start" "-a" "3c0d9f4ea4044cd41b8f951e9fb6a1468303c1589bac0c22563de1be8f25761c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling md-prep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `minim_output`
[INFO] [stdout]   --> src/main.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |             if let Some(minim_output) = minimization.stdout.take() {
[INFO] [stdout]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minim_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heat_output`
[INFO] [stdout]   --> src/main.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 if let Some(heat_output) = first_heat.stdout.take() {
[INFO] [stdout]    |                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heat_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heat_output`
[INFO] [stdout]   --> src/main.rs:79:33
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     if let Some(heat_output) = first_heat.stdout.take() {
[INFO] [stdout]    |                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heat_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "3c0d9f4ea4044cd41b8f951e9fb6a1468303c1589bac0c22563de1be8f25761c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0d9f4ea4044cd41b8f951e9fb6a1468303c1589bac0c22563de1be8f25761c", kill_on_drop: false }`
[INFO] [stdout] 3c0d9f4ea4044cd41b8f951e9fb6a1468303c1589bac0c22563de1be8f25761c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 39312f34ff3767f4cd3a8159677b0d74eed6d2d4f40acbf17313381ebc2f45af
[INFO] running `Command { std: "docker" "start" "-a" "39312f34ff3767f4cd3a8159677b0d74eed6d2d4f40acbf17313381ebc2f45af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `minim_output`
[INFO] [stderr]   --> src/main.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |             if let Some(minim_output) = minimization.stdout.take() {
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minim_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `heat_output`
[INFO] [stderr]   --> src/main.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 if let Some(heat_output) = first_heat.stdout.take() {
[INFO] [stderr]    |                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heat_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `heat_output`
[INFO] [stderr]   --> src/main.rs:79:33
[INFO] [stderr]    |
[INFO] [stderr] 79 |                     if let Some(heat_output) = first_heat.stdout.take() {
[INFO] [stderr]    |                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heat_output`
[INFO] [stderr] 
[INFO] [stderr] warning: `md-prep` (bin "md-prep" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/md_prep-3b07ac8b808a13cf)
[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" "39312f34ff3767f4cd3a8159677b0d74eed6d2d4f40acbf17313381ebc2f45af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39312f34ff3767f4cd3a8159677b0d74eed6d2d4f40acbf17313381ebc2f45af", kill_on_drop: false }`
[INFO] [stdout] 39312f34ff3767f4cd3a8159677b0d74eed6d2d4f40acbf17313381ebc2f45af