[INFO] cloning repository https://github.com/rk-projects/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rk-projects/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frk-projects%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frk-projects%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bafbfb48da8c4ae0e58028e9afe4bab1601944b9
[INFO] testing rk-projects/learn-rust against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frk-projects%2Flearn-rust" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rk-projects/learn-rust on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rk-projects/learn-rust
[INFO] finished tweaking git repo https://github.com/rk-projects/learn-rust
[INFO] tweaked toml for git repo https://github.com/rk-projects/learn-rust written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/rk-projects/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1750704cb3f0b29cc9d53a5af38d407dcd851229958bb9f6e70a354dbe9e66d
[INFO] running `Command { std: "docker" "start" "-a" "a1750704cb3f0b29cc9d53a5af38d407dcd851229958bb9f6e70a354dbe9e66d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1750704cb3f0b29cc9d53a5af38d407dcd851229958bb9f6e70a354dbe9e66d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1750704cb3f0b29cc9d53a5af38d407dcd851229958bb9f6e70a354dbe9e66d", kill_on_drop: false }`
[INFO] [stdout] a1750704cb3f0b29cc9d53a5af38d407dcd851229958bb9f6e70a354dbe9e66d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 883f8dd70bdec0455353c3dd9b57fedfab60d37400fe7f3b5b5df584eacbdf0b
[INFO] running `Command { std: "docker" "start" "-a" "883f8dd70bdec0455353c3dd9b57fedfab60d37400fe7f3b5b5df584eacbdf0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "883f8dd70bdec0455353c3dd9b57fedfab60d37400fe7f3b5b5df584eacbdf0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883f8dd70bdec0455353c3dd9b57fedfab60d37400fe7f3b5b5df584eacbdf0b", kill_on_drop: false }`
[INFO] [stdout] 883f8dd70bdec0455353c3dd9b57fedfab60d37400fe7f3b5b5df584eacbdf0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ae52d6270a97b0213a406f8f061d6066ba50c04583f2c575410bafe495b0bf2
[INFO] running `Command { std: "docker" "start" "-a" "0ae52d6270a97b0213a406f8f061d6066ba50c04583f2c575410bafe495b0bf2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "0ae52d6270a97b0213a406f8f061d6066ba50c04583f2c575410bafe495b0bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ae52d6270a97b0213a406f8f061d6066ba50c04583f2c575410bafe495b0bf2", kill_on_drop: false }`
[INFO] [stdout] 0ae52d6270a97b0213a406f8f061d6066ba50c04583f2c575410bafe495b0bf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e7358df8d82700e54fc7db9bd31c1517b6538e836b97c550b3006c6a5715de2
[INFO] running `Command { std: "docker" "start" "-a" "8e7358df8d82700e54fc7db9bd31c1517b6538e836b97c550b3006c6a5715de2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_rust-9523b7a48c5c310e)
[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" "8e7358df8d82700e54fc7db9bd31c1517b6538e836b97c550b3006c6a5715de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e7358df8d82700e54fc7db9bd31c1517b6538e836b97c550b3006c6a5715de2", kill_on_drop: false }`
[INFO] [stdout] 8e7358df8d82700e54fc7db9bd31c1517b6538e836b97c550b3006c6a5715de2