[INFO] cloning repository https://github.com/ksaxena149/walk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ksaxena149/walk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksaxena149%2Fwalk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksaxena149%2Fwalk'...
[INFO] [stderr] fatal: error closing file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksaxena149%2Fwalk/packed-refs.new: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/ksaxena149/walk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ksaxena149/walk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksaxena149%2Fwalk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksaxena149%2Fwalk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7ba7d1fd4df6c604f38ac850a6b20fb4afbcc80
[INFO] testing ksaxena149/walk against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksaxena149%2Fwalk" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ksaxena149/walk on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ksaxena149/walk
[INFO] finished tweaking git repo https://github.com/ksaxena149/walk
[INFO] tweaked toml for git repo https://github.com/ksaxena149/walk written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ksaxena149/walk 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8f767503a2af8e089fe4ae102d2d699665ec905b7a3eb56e981b4a5e3e86f6a
[INFO] running `Command { std: "docker" "start" "-a" "a8f767503a2af8e089fe4ae102d2d699665ec905b7a3eb56e981b4a5e3e86f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8f767503a2af8e089fe4ae102d2d699665ec905b7a3eb56e981b4a5e3e86f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f767503a2af8e089fe4ae102d2d699665ec905b7a3eb56e981b4a5e3e86f6a", kill_on_drop: false }`
[INFO] [stdout] a8f767503a2af8e089fe4ae102d2d699665ec905b7a3eb56e981b4a5e3e86f6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f2754670d13089cb0039c72b565cb28f725cfe2e3157e04ecd19b06bcc37ad1
[INFO] running `Command { std: "docker" "start" "-a" "8f2754670d13089cb0039c72b565cb28f725cfe2e3157e04ecd19b06bcc37ad1", kill_on_drop: false }`
[INFO] [stderr]    Compiling walk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err_msg`
[INFO] [stdout]   --> src/executor/py_executor.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let err_msg = String::from_utf8_lossy(&output.stderr);
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_err_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "8f2754670d13089cb0039c72b565cb28f725cfe2e3157e04ecd19b06bcc37ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2754670d13089cb0039c72b565cb28f725cfe2e3157e04ecd19b06bcc37ad1", kill_on_drop: false }`
[INFO] [stdout] 8f2754670d13089cb0039c72b565cb28f725cfe2e3157e04ecd19b06bcc37ad1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa7cb46dab680b885b235488018c6cc68d7ba72777a59d23dc16865baf0e87c7
[INFO] running `Command { std: "docker" "start" "-a" "aa7cb46dab680b885b235488018c6cc68d7ba72777a59d23dc16865baf0e87c7", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/walk-aaa327812fc9ada9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "aa7cb46dab680b885b235488018c6cc68d7ba72777a59d23dc16865baf0e87c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7cb46dab680b885b235488018c6cc68d7ba72777a59d23dc16865baf0e87c7", kill_on_drop: false }`
[INFO] [stdout] aa7cb46dab680b885b235488018c6cc68d7ba72777a59d23dc16865baf0e87c7