[INFO] cloning repository https://github.com/qingxiang-jia/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/qingxiang-jia/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqingxiang-jia%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqingxiang-jia%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a5d82ab7d8a21c1f2d7f96fda45dd273c842694
[INFO] testing qingxiang-jia/learn-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%2Fqingxiang-jia%2Flearn-rust" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qingxiang-jia/learn-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/qingxiang-jia/learn-rust
[INFO] finished tweaking git repo https://github.com/qingxiang-jia/learn-rust
[INFO] tweaked toml for git repo https://github.com/qingxiang-jia/learn-rust written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/qingxiang-jia/learn-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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 8a047b110bbc50556581bc43a9429a2f35d0b822c62dca18f2c93c1d22a200d7
[INFO] running `Command { std: "docker" "start" "-a" "8a047b110bbc50556581bc43a9429a2f35d0b822c62dca18f2c93c1d22a200d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a047b110bbc50556581bc43a9429a2f35d0b822c62dca18f2c93c1d22a200d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a047b110bbc50556581bc43a9429a2f35d0b822c62dca18f2c93c1d22a200d7", kill_on_drop: false }`
[INFO] [stdout] 8a047b110bbc50556581bc43a9429a2f35d0b822c62dca18f2c93c1d22a200d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] a5f9aa749418d38d6241f8d3075a2cec90d8946cb54f0914c834870e717d8d1a
[INFO] running `Command { std: "docker" "start" "-a" "a5f9aa749418d38d6241f8d3075a2cec90d8946cb54f0914c834870e717d8d1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling serde v1.0.37
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.38s
[INFO] running `Command { std: "docker" "inspect" "a5f9aa749418d38d6241f8d3075a2cec90d8946cb54f0914c834870e717d8d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5f9aa749418d38d6241f8d3075a2cec90d8946cb54f0914c834870e717d8d1a", kill_on_drop: false }`
[INFO] [stdout] a5f9aa749418d38d6241f8d3075a2cec90d8946cb54f0914c834870e717d8d1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 091bc2f5c79683cbdfb7f9d8c58deb1ee85cf8cfd9b21067c76114a83a70766e
[INFO] running `Command { std: "docker" "start" "-a" "091bc2f5c79683cbdfb7f9d8c58deb1ee85cf8cfd9b21067c76114a83a70766e", 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 2.43s
[INFO] [stderr]   Executable unittests src/serde_fun.rs (/opt/rustwide/target/debug/deps/serde_fun-e68e544e7edb42fe)
[INFO] [stderr]   Executable unittests src/udp_cmd.rs (/opt/rustwide/target/debug/deps/udp_cmd-5fbb5104d9f89ebe)
[INFO] running `Command { std: "docker" "inspect" "091bc2f5c79683cbdfb7f9d8c58deb1ee85cf8cfd9b21067c76114a83a70766e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091bc2f5c79683cbdfb7f9d8c58deb1ee85cf8cfd9b21067c76114a83a70766e", kill_on_drop: false }`
[INFO] [stdout] 091bc2f5c79683cbdfb7f9d8c58deb1ee85cf8cfd9b21067c76114a83a70766e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 956c0bec987ccba462c1a84d0bb64da2944293fd6fce0ec9c0ea2ff9040d1a6f
[INFO] running `Command { std: "docker" "start" "-a" "956c0bec987ccba462c1a84d0bb64da2944293fd6fce0ec9c0ea2ff9040d1a6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.00s
[INFO] [stderr]      Running unittests src/serde_fun.rs (/opt/rustwide/target/debug/deps/serde_fun-e68e544e7edb42fe)
[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] [stderr]      Running unittests src/udp_cmd.rs (/opt/rustwide/target/debug/deps/udp_cmd-5fbb5104d9f89ebe)
[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" "956c0bec987ccba462c1a84d0bb64da2944293fd6fce0ec9c0ea2ff9040d1a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956c0bec987ccba462c1a84d0bb64da2944293fd6fce0ec9c0ea2ff9040d1a6f", kill_on_drop: false }`
[INFO] [stdout] 956c0bec987ccba462c1a84d0bb64da2944293fd6fce0ec9c0ea2ff9040d1a6f