[INFO] cloning repository https://github.com/overvenus/stackoverflow-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/overvenus/stackoverflow-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fovervenus%2Fstackoverflow-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fovervenus%2Fstackoverflow-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82f0726992305bd40199a8b4d2a842952e9287cd
[INFO] testing overvenus/stackoverflow-rs against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fovervenus%2Fstackoverflow-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/overvenus/stackoverflow-rs on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/overvenus/stackoverflow-rs
[INFO] finished tweaking git repo https://github.com/overvenus/stackoverflow-rs
[INFO] tweaked toml for git repo https://github.com/overvenus/stackoverflow-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/overvenus/stackoverflow-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29ea6ba411312c8385f7002084c3f5f2ca52eb9ce660843fa02db885d33fd6b8
[INFO] running `Command { std: "docker" "start" "-a" "29ea6ba411312c8385f7002084c3f5f2ca52eb9ce660843fa02db885d33fd6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29ea6ba411312c8385f7002084c3f5f2ca52eb9ce660843fa02db885d33fd6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ea6ba411312c8385f7002084c3f5f2ca52eb9ce660843fa02db885d33fd6b8", kill_on_drop: false }`
[INFO] [stdout] 29ea6ba411312c8385f7002084c3f5f2ca52eb9ce660843fa02db885d33fd6b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6360450ccef5b40b4e3e25516df5ab29c71d66ed870e6b4b619556331f8d73d5
[INFO] running `Command { std: "docker" "start" "-a" "6360450ccef5b40b4e3e25516df5ab29c71d66ed870e6b4b619556331f8d73d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.47s
[INFO] running `Command { std: "docker" "inspect" "6360450ccef5b40b4e3e25516df5ab29c71d66ed870e6b4b619556331f8d73d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6360450ccef5b40b4e3e25516df5ab29c71d66ed870e6b4b619556331f8d73d5", kill_on_drop: false }`
[INFO] [stdout] 6360450ccef5b40b4e3e25516df5ab29c71d66ed870e6b4b619556331f8d73d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08c55f23de5989fe59b62b81e5037f8f2560a2e5ecd2c1a49e48572612b23879
[INFO] running `Command { std: "docker" "start" "-a" "08c55f23de5989fe59b62b81e5037f8f2560a2e5ecd2c1a49e48572612b23879", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/stack-557c782d9de124ce)
[INFO] running `Command { std: "docker" "inspect" "08c55f23de5989fe59b62b81e5037f8f2560a2e5ecd2c1a49e48572612b23879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c55f23de5989fe59b62b81e5037f8f2560a2e5ecd2c1a49e48572612b23879", kill_on_drop: false }`
[INFO] [stdout] 08c55f23de5989fe59b62b81e5037f8f2560a2e5ecd2c1a49e48572612b23879
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c4ba4c426be20008d41e2d585fc6c57eb225489c931623201e84538f6df9700
[INFO] running `Command { std: "docker" "start" "-a" "6c4ba4c426be20008d41e2d585fc6c57eb225489c931623201e84538f6df9700", 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" "6c4ba4c426be20008d41e2d585fc6c57eb225489c931623201e84538f6df9700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4ba4c426be20008d41e2d585fc6c57eb225489c931623201e84538f6df9700", kill_on_drop: false }`
[INFO] [stdout] 6c4ba4c426be20008d41e2d585fc6c57eb225489c931623201e84538f6df9700