[INFO] cloning repository https://github.com/rukarangi/rust-programming-techniques
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rukarangi/rust-programming-techniques" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Frust-programming-techniques", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Frust-programming-techniques'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89256df4b5272a0ced1446257e461f63e5ba5dcb
[INFO] testing rukarangi/rust-programming-techniques against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Frust-programming-techniques" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rukarangi/rust-programming-techniques on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rukarangi/rust-programming-techniques
[INFO] finished tweaking git repo https://github.com/rukarangi/rust-programming-techniques
[INFO] tweaked toml for git repo https://github.com/rukarangi/rust-programming-techniques written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rukarangi/rust-programming-techniques 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" "+552a959051cebf8f88a8f558399baf733bec9ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec3389fc35ae5dbaa358c1db48711b84b0362a34df8a1a1c4baaffbff45f84f3
[INFO] running `Command { std: "docker" "start" "-a" "ec3389fc35ae5dbaa358c1db48711b84b0362a34df8a1a1c4baaffbff45f84f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec3389fc35ae5dbaa358c1db48711b84b0362a34df8a1a1c4baaffbff45f84f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec3389fc35ae5dbaa358c1db48711b84b0362a34df8a1a1c4baaffbff45f84f3", kill_on_drop: false }`
[INFO] [stdout] ec3389fc35ae5dbaa358c1db48711b84b0362a34df8a1a1c4baaffbff45f84f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61173b9b8f2512b7bd6fe47795b1486cf9bb66e31a98cfcebe13fcd39322fd4a
[INFO] running `Command { std: "docker" "start" "-a" "61173b9b8f2512b7bd6fe47795b1486cf9bb66e31a98cfcebe13fcd39322fd4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-programming-techniques v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "61173b9b8f2512b7bd6fe47795b1486cf9bb66e31a98cfcebe13fcd39322fd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61173b9b8f2512b7bd6fe47795b1486cf9bb66e31a98cfcebe13fcd39322fd4a", kill_on_drop: false }`
[INFO] [stdout] 61173b9b8f2512b7bd6fe47795b1486cf9bb66e31a98cfcebe13fcd39322fd4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16a92121f2c7b268b649d88b661cafa15d1264b3e45927481b34801fb6e95db0
[INFO] running `Command { std: "docker" "start" "-a" "16a92121f2c7b268b649d88b661cafa15d1264b3e45927481b34801fb6e95db0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-programming-techniques v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "16a92121f2c7b268b649d88b661cafa15d1264b3e45927481b34801fb6e95db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16a92121f2c7b268b649d88b661cafa15d1264b3e45927481b34801fb6e95db0", kill_on_drop: false }`
[INFO] [stdout] 16a92121f2c7b268b649d88b661cafa15d1264b3e45927481b34801fb6e95db0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5df10b22f2f3a3ba3a0863ceda8562db32b33e5f37ea725b54e75a7bdd92c3a5
[INFO] running `Command { std: "docker" "start" "-a" "5df10b22f2f3a3ba3a0863ceda8562db32b33e5f37ea725b54e75a7bdd92c3a5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_programming_techniques-1df6a775e0fc2e19)
[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" "5df10b22f2f3a3ba3a0863ceda8562db32b33e5f37ea725b54e75a7bdd92c3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5df10b22f2f3a3ba3a0863ceda8562db32b33e5f37ea725b54e75a7bdd92c3a5", kill_on_drop: false }`
[INFO] [stdout] 5df10b22f2f3a3ba3a0863ceda8562db32b33e5f37ea725b54e75a7bdd92c3a5