[INFO] cloning repository https://github.com/TechThrust/Rust-Simple-Linear-Regression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TechThrust/Rust-Simple-Linear-Regression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechThrust%2FRust-Simple-Linear-Regression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechThrust%2FRust-Simple-Linear-Regression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56797a588d47cf07e9fc430fb96e5e3fb356fc06
[INFO] testing TechThrust/Rust-Simple-Linear-Regression against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechThrust%2FRust-Simple-Linear-Regression" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TechThrust/Rust-Simple-Linear-Regression on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TechThrust/Rust-Simple-Linear-Regression
[INFO] finished tweaking git repo https://github.com/TechThrust/Rust-Simple-Linear-Regression
[INFO] tweaked toml for git repo https://github.com/TechThrust/Rust-Simple-Linear-Regression written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/TechThrust/Rust-Simple-Linear-Regression already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be842c10badb60746d67dfb16c2b374691cc3990a9da2e45ad65668641eef893
[INFO] running `Command { std: "docker" "start" "-a" "be842c10badb60746d67dfb16c2b374691cc3990a9da2e45ad65668641eef893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be842c10badb60746d67dfb16c2b374691cc3990a9da2e45ad65668641eef893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be842c10badb60746d67dfb16c2b374691cc3990a9da2e45ad65668641eef893", kill_on_drop: false }`
[INFO] [stdout] be842c10badb60746d67dfb16c2b374691cc3990a9da2e45ad65668641eef893
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4258c92f378c52e24bbd0ebe8c5a311dd511ef73dbb747e8d718c17c4fb4393
[INFO] running `Command { std: "docker" "start" "-a" "f4258c92f378c52e24bbd0ebe8c5a311dd511ef73dbb747e8d718c17c4fb4393", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling simple_regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.18s
[INFO] running `Command { std: "docker" "inspect" "f4258c92f378c52e24bbd0ebe8c5a311dd511ef73dbb747e8d718c17c4fb4393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4258c92f378c52e24bbd0ebe8c5a311dd511ef73dbb747e8d718c17c4fb4393", kill_on_drop: false }`
[INFO] [stdout] f4258c92f378c52e24bbd0ebe8c5a311dd511ef73dbb747e8d718c17c4fb4393
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10fbbf9a73beaa90183128af61f19413b49ead638a3bceda9531c77c3278702a
[INFO] running `Command { std: "docker" "start" "-a" "10fbbf9a73beaa90183128af61f19413b49ead638a3bceda9531c77c3278702a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling simple_regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "10fbbf9a73beaa90183128af61f19413b49ead638a3bceda9531c77c3278702a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10fbbf9a73beaa90183128af61f19413b49ead638a3bceda9531c77c3278702a", kill_on_drop: false }`
[INFO] [stdout] 10fbbf9a73beaa90183128af61f19413b49ead638a3bceda9531c77c3278702a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0fca813e7e0898864d94f673bb3ce7b3e0752a6251991b0d46a4b9163e172d0a
[INFO] running `Command { std: "docker" "start" "-a" "0fca813e7e0898864d94f673bb3ce7b3e0752a6251991b0d46a4b9163e172d0a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simple_regression-82876c4b9ba9b796)
[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" "0fca813e7e0898864d94f673bb3ce7b3e0752a6251991b0d46a4b9163e172d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fca813e7e0898864d94f673bb3ce7b3e0752a6251991b0d46a4b9163e172d0a", kill_on_drop: false }`
[INFO] [stdout] 0fca813e7e0898864d94f673bb3ce7b3e0752a6251991b0d46a4b9163e172d0a