[INFO] updating cached repository https://github.com/sameem420/rust_mutableVariables
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c44eca5fe4f5b17a93c2204ffa5a10deb78dd372
[INFO] testing sameem420/rust_mutableVariables against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsameem420%2Frust_mutableVariables" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sameem420/rust_mutableVariables on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sameem420/rust_mutableVariables
[INFO] finished tweaking git repo https://github.com/sameem420/rust_mutableVariables
[INFO] tweaked toml for git repo https://github.com/sameem420/rust_mutableVariables written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/sameem420/rust_mutableVariables already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f987a5ee035d7ff2bb5f538d608b319c24e0e71e16e09617e08e0115d259652f
[INFO] running `Command { std: "docker" "start" "-a" "f987a5ee035d7ff2bb5f538d608b319c24e0e71e16e09617e08e0115d259652f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f987a5ee035d7ff2bb5f538d608b319c24e0e71e16e09617e08e0115d259652f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f987a5ee035d7ff2bb5f538d608b319c24e0e71e16e09617e08e0115d259652f", kill_on_drop: false }`
[INFO] [stdout] f987a5ee035d7ff2bb5f538d608b319c24e0e71e16e09617e08e0115d259652f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c9dfc57ed8fdd36dd19a73dd629b9e0cf2f27edc75c4b9c76cb6b8fa022f5d3
[INFO] running `Command { std: "docker" "start" "-a" "1c9dfc57ed8fdd36dd19a73dd629b9e0cf2f27edc75c4b9c76cb6b8fa022f5d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mut_variables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 21s
[INFO] running `Command { std: "docker" "inspect" "1c9dfc57ed8fdd36dd19a73dd629b9e0cf2f27edc75c4b9c76cb6b8fa022f5d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9dfc57ed8fdd36dd19a73dd629b9e0cf2f27edc75c4b9c76cb6b8fa022f5d3", kill_on_drop: false }`
[INFO] [stdout] 1c9dfc57ed8fdd36dd19a73dd629b9e0cf2f27edc75c4b9c76cb6b8fa022f5d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 054486d32d656e6194ea34f2b1d6ed650743aa0969d0f51a7cb753b7561853e0
[INFO] running `Command { std: "docker" "start" "-a" "054486d32d656e6194ea34f2b1d6ed650743aa0969d0f51a7cb753b7561853e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mut_variables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "054486d32d656e6194ea34f2b1d6ed650743aa0969d0f51a7cb753b7561853e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "054486d32d656e6194ea34f2b1d6ed650743aa0969d0f51a7cb753b7561853e0", kill_on_drop: false }`
[INFO] [stdout] 054486d32d656e6194ea34f2b1d6ed650743aa0969d0f51a7cb753b7561853e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66e5c613afdc35c382a79d30d122849737999d874764dc57a1e7e0862a4cad6e
[INFO] running `Command { std: "docker" "start" "-a" "66e5c613afdc35c382a79d30d122849737999d874764dc57a1e7e0862a4cad6e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mut_variables-1f4136dc95a2eba8)
[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" "66e5c613afdc35c382a79d30d122849737999d874764dc57a1e7e0862a4cad6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e5c613afdc35c382a79d30d122849737999d874764dc57a1e7e0862a4cad6e", kill_on_drop: false }`
[INFO] [stdout] 66e5c613afdc35c382a79d30d122849737999d874764dc57a1e7e0862a4cad6e