[INFO] cloning repository https://github.com/krelod/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krelod/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrelod%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrelod%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c05d22ebc43bafba6196fac077228d1807464c7c
[INFO] testing krelod/learning-rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrelod%2Flearning-rust" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krelod/learning-rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krelod/learning-rust
[INFO] finished tweaking git repo https://github.com/krelod/learning-rust
[INFO] tweaked toml for git repo https://github.com/krelod/learning-rust written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate git repo https://github.com/krelod/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5793e9c836a21fe2e61b9f5d2faabad696f2b67a4856a8785693215b7ba2d3b
[INFO] running `Command { std: "docker" "start" "-a" "b5793e9c836a21fe2e61b9f5d2faabad696f2b67a4856a8785693215b7ba2d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5793e9c836a21fe2e61b9f5d2faabad696f2b67a4856a8785693215b7ba2d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5793e9c836a21fe2e61b9f5d2faabad696f2b67a4856a8785693215b7ba2d3b", kill_on_drop: false }`
[INFO] [stdout] b5793e9c836a21fe2e61b9f5d2faabad696f2b67a4856a8785693215b7ba2d3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34c8b9898ff1b15aa745102c4ef1ef5cff53b05fbf8f073f3c0aa16f7865b79c
[INFO] running `Command { std: "docker" "start" "-a" "34c8b9898ff1b15aa745102c4ef1ef5cff53b05fbf8f073f3c0aa16f7865b79c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.88s
[INFO] running `Command { std: "docker" "inspect" "34c8b9898ff1b15aa745102c4ef1ef5cff53b05fbf8f073f3c0aa16f7865b79c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c8b9898ff1b15aa745102c4ef1ef5cff53b05fbf8f073f3c0aa16f7865b79c", kill_on_drop: false }`
[INFO] [stdout] 34c8b9898ff1b15aa745102c4ef1ef5cff53b05fbf8f073f3c0aa16f7865b79c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d068b929f0585409cd7d32d4883bc0a89588aeded25b7a092f1e7285f3da57c
[INFO] running `Command { std: "docker" "start" "-a" "9d068b929f0585409cd7d32d4883bc0a89588aeded25b7a092f1e7285f3da57c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_rust-9b8b6c809b50fe02)
[INFO] running `Command { std: "docker" "inspect" "9d068b929f0585409cd7d32d4883bc0a89588aeded25b7a092f1e7285f3da57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d068b929f0585409cd7d32d4883bc0a89588aeded25b7a092f1e7285f3da57c", kill_on_drop: false }`
[INFO] [stdout] 9d068b929f0585409cd7d32d4883bc0a89588aeded25b7a092f1e7285f3da57c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eea3318a1432a9150775c9ef07162a944a03abbcd2ae3b65eae1d1ae37a57fcf
[INFO] running `Command { std: "docker" "start" "-a" "eea3318a1432a9150775c9ef07162a944a03abbcd2ae3b65eae1d1ae37a57fcf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_rust-9b8b6c809b50fe02)
[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" "eea3318a1432a9150775c9ef07162a944a03abbcd2ae3b65eae1d1ae37a57fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea3318a1432a9150775c9ef07162a944a03abbcd2ae3b65eae1d1ae37a57fcf", kill_on_drop: false }`
[INFO] [stdout] eea3318a1432a9150775c9ef07162a944a03abbcd2ae3b65eae1d1ae37a57fcf