[INFO] cloning repository https://github.com/h-lavaei/rust-core-utils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/h-lavaei/rust-core-utils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh-lavaei%2Frust-core-utils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh-lavaei%2Frust-core-utils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7a0b81ccd513d02033e9b7a8bcef0aa458ad54c
[INFO] testing h-lavaei/rust-core-utils against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh-lavaei%2Frust-core-utils" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/h-lavaei/rust-core-utils on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/h-lavaei/rust-core-utils
[INFO] finished tweaking git repo https://github.com/h-lavaei/rust-core-utils
[INFO] tweaked toml for git repo https://github.com/h-lavaei/rust-core-utils written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/h-lavaei/rust-core-utils 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" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fbce8234a8025f217ea940ab73cac1487611615935e051b14ad9e17b2704a5c
[INFO] running `Command { std: "docker" "start" "-a" "9fbce8234a8025f217ea940ab73cac1487611615935e051b14ad9e17b2704a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fbce8234a8025f217ea940ab73cac1487611615935e051b14ad9e17b2704a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fbce8234a8025f217ea940ab73cac1487611615935e051b14ad9e17b2704a5c", kill_on_drop: false }`
[INFO] [stdout] 9fbce8234a8025f217ea940ab73cac1487611615935e051b14ad9e17b2704a5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6cb7f34c371ec81fabbb74ac70bec95fc753ee80c37f5239f2c5e7bad1aa16c
[INFO] running `Command { std: "docker" "start" "-a" "f6cb7f34c371ec81fabbb74ac70bec95fc753ee80c37f5239f2c5e7bad1aa16c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-core-utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut result = String::new();
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "f6cb7f34c371ec81fabbb74ac70bec95fc753ee80c37f5239f2c5e7bad1aa16c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cb7f34c371ec81fabbb74ac70bec95fc753ee80c37f5239f2c5e7bad1aa16c", kill_on_drop: false }`
[INFO] [stdout] f6cb7f34c371ec81fabbb74ac70bec95fc753ee80c37f5239f2c5e7bad1aa16c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c33e98fe4b8d610f6b8bf5caeee89aec7c24c9cecee12602ba7540d6b74fff6
[INFO] running `Command { std: "docker" "start" "-a" "9c33e98fe4b8d610f6b8bf5caeee89aec7c24c9cecee12602ba7540d6b74fff6", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/rust-core-utils-f4398c5f96c80b09`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "9c33e98fe4b8d610f6b8bf5caeee89aec7c24c9cecee12602ba7540d6b74fff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c33e98fe4b8d610f6b8bf5caeee89aec7c24c9cecee12602ba7540d6b74fff6", kill_on_drop: false }`
[INFO] [stdout] 9c33e98fe4b8d610f6b8bf5caeee89aec7c24c9cecee12602ba7540d6b74fff6