[INFO] cloning repository https://github.com/kecci/rust-variables-mutability
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kecci/rust-variables-mutability" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkecci%2Frust-variables-mutability", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkecci%2Frust-variables-mutability'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cecd5f17c50f026d7288e86013f5f3bcbd4b9ca
[INFO] building kecci/rust-variables-mutability against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkecci%2Frust-variables-mutability" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kecci/rust-variables-mutability
[INFO] finished tweaking git repo https://github.com/kecci/rust-variables-mutability
[INFO] tweaked toml for git repo https://github.com/kecci/rust-variables-mutability written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kecci/rust-variables-mutability on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kecci/rust-variables-mutability already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccd80663b5443a4c8f0e2b27b90f5a434edc15fdf622847a43e8a33fc7d70013
[INFO] running `Command { std: "docker" "start" "-a" "ccd80663b5443a4c8f0e2b27b90f5a434edc15fdf622847a43e8a33fc7d70013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccd80663b5443a4c8f0e2b27b90f5a434edc15fdf622847a43e8a33fc7d70013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd80663b5443a4c8f0e2b27b90f5a434edc15fdf622847a43e8a33fc7d70013", kill_on_drop: false }`
[INFO] [stdout] ccd80663b5443a4c8f0e2b27b90f5a434edc15fdf622847a43e8a33fc7d70013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0924627cf82345f4d8330d5e562443bf2a35a521de1e70ffca68466cc4290eac
[INFO] running `Command { std: "docker" "start" "-a" "0924627cf82345f4d8330d5e562443bf2a35a521de1e70ffca68466cc4290eac", kill_on_drop: false }`
[INFO] [stderr]    Compiling variables_and_mutability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "0924627cf82345f4d8330d5e562443bf2a35a521de1e70ffca68466cc4290eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0924627cf82345f4d8330d5e562443bf2a35a521de1e70ffca68466cc4290eac", kill_on_drop: false }`
[INFO] [stdout] 0924627cf82345f4d8330d5e562443bf2a35a521de1e70ffca68466cc4290eac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f05a4d45154091476eec4c92948bb29d85fe1969680fd3a73de643767628a7a2
[INFO] running `Command { std: "docker" "start" "-a" "f05a4d45154091476eec4c92948bb29d85fe1969680fd3a73de643767628a7a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling variables_and_mutability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "f05a4d45154091476eec4c92948bb29d85fe1969680fd3a73de643767628a7a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05a4d45154091476eec4c92948bb29d85fe1969680fd3a73de643767628a7a2", kill_on_drop: false }`
[INFO] [stdout] f05a4d45154091476eec4c92948bb29d85fe1969680fd3a73de643767628a7a2