[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#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Frust-programming-techniques" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rukarangi/rust-programming-techniques on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-13/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: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 377896f74021a1c2aaa54f78cd58a2a09ddc53970b97f87528874758a5bfdbe9
[INFO] running `Command { std: "docker" "start" "-a" "377896f74021a1c2aaa54f78cd58a2a09ddc53970b97f87528874758a5bfdbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "377896f74021a1c2aaa54f78cd58a2a09ddc53970b97f87528874758a5bfdbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "377896f74021a1c2aaa54f78cd58a2a09ddc53970b97f87528874758a5bfdbe9", kill_on_drop: false }`
[INFO] [stdout] 377896f74021a1c2aaa54f78cd58a2a09ddc53970b97f87528874758a5bfdbe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 195b408902221d9cf14d95554c725f87e34739cbe955e3f54f8bfb13733706c5
[INFO] running `Command { std: "docker" "start" "-a" "195b408902221d9cf14d95554c725f87e34739cbe955e3f54f8bfb13733706c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-programming-techniques v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "195b408902221d9cf14d95554c725f87e34739cbe955e3f54f8bfb13733706c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195b408902221d9cf14d95554c725f87e34739cbe955e3f54f8bfb13733706c5", kill_on_drop: false }`
[INFO] [stdout] 195b408902221d9cf14d95554c725f87e34739cbe955e3f54f8bfb13733706c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70af778c211b8c36ce0133790b685aec228d3ab1d45622b8e2f108168ed97ab2
[INFO] running `Command { std: "docker" "start" "-a" "70af778c211b8c36ce0133790b685aec228d3ab1d45622b8e2f108168ed97ab2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-programming-techniques v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "70af778c211b8c36ce0133790b685aec228d3ab1d45622b8e2f108168ed97ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70af778c211b8c36ce0133790b685aec228d3ab1d45622b8e2f108168ed97ab2", kill_on_drop: false }`
[INFO] [stdout] 70af778c211b8c36ce0133790b685aec228d3ab1d45622b8e2f108168ed97ab2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17e0d9e4b0a376c1c66ff921913ae44d35e3b74536594d337fe06a1f36f4d1f8
[INFO] running `Command { std: "docker" "start" "-a" "17e0d9e4b0a376c1c66ff921913ae44d35e3b74536594d337fe06a1f36f4d1f8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_programming_techniques-8a4784a53c27074f)
[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" "17e0d9e4b0a376c1c66ff921913ae44d35e3b74536594d337fe06a1f36f4d1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e0d9e4b0a376c1c66ff921913ae44d35e3b74536594d337fe06a1f36f4d1f8", kill_on_drop: false }`
[INFO] [stdout] 17e0d9e4b0a376c1c66ff921913ae44d35e3b74536594d337fe06a1f36f4d1f8