[INFO] cloning repository https://github.com/charlespierce/compiler-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/charlespierce/compiler-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharlespierce%2Fcompiler-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharlespierce%2Fcompiler-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aaa697434345bdc0d40a9bc1fb77f1d469a1f40d
[INFO] testing charlespierce/compiler-experiment against try#c3758fdc4730d7700b25a13cccff296a08f42c00 for pr-91743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharlespierce%2Fcompiler-experiment" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/charlespierce/compiler-experiment on toolchain c3758fdc4730d7700b25a13cccff296a08f42c00
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/charlespierce/compiler-experiment
[INFO] finished tweaking git repo https://github.com/charlespierce/compiler-experiment
[INFO] tweaked toml for git repo https://github.com/charlespierce/compiler-experiment written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/charlespierce/compiler-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b18c0256e53125efb9e5186246800cf1be209c89bf379618b51f0954ce93ef86
[INFO] running `Command { std: "docker" "start" "-a" "b18c0256e53125efb9e5186246800cf1be209c89bf379618b51f0954ce93ef86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b18c0256e53125efb9e5186246800cf1be209c89bf379618b51f0954ce93ef86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b18c0256e53125efb9e5186246800cf1be209c89bf379618b51f0954ce93ef86", kill_on_drop: false }`
[INFO] [stdout] b18c0256e53125efb9e5186246800cf1be209c89bf379618b51f0954ce93ef86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb620a9146deada898545dfec26fde785001c9a4b8c72c861b9c8aa5a191a4fd
[INFO] running `Command { std: "docker" "start" "-a" "bb620a9146deada898545dfec26fde785001c9a4b8c72c861b9c8aa5a191a4fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling compiler-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 23s
[INFO] running `Command { std: "docker" "inspect" "bb620a9146deada898545dfec26fde785001c9a4b8c72c861b9c8aa5a191a4fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb620a9146deada898545dfec26fde785001c9a4b8c72c861b9c8aa5a191a4fd", kill_on_drop: false }`
[INFO] [stdout] bb620a9146deada898545dfec26fde785001c9a4b8c72c861b9c8aa5a191a4fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04dd733755e44d00eaa0f53734680487d738eb52c557654d7d74709c4edc04c9
[INFO] running `Command { std: "docker" "start" "-a" "04dd733755e44d00eaa0f53734680487d738eb52c557654d7d74709c4edc04c9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "04dd733755e44d00eaa0f53734680487d738eb52c557654d7d74709c4edc04c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04dd733755e44d00eaa0f53734680487d738eb52c557654d7d74709c4edc04c9", kill_on_drop: false }`
[INFO] [stdout] 04dd733755e44d00eaa0f53734680487d738eb52c557654d7d74709c4edc04c9