[INFO] cloning repository https://github.com/iguajardo/carapace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iguajardo/carapace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/iguajardo/carapace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iguajardo/carapace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace'...
[INFO] [stderr] error: unable to write symref for HEAD: No space left on device
[INFO] [stderr] fatal: unable to update HEAD
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/iguajardo/carapace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iguajardo/carapace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5fda1f7418f9c1ce378e66db0a2d64a514c28a1
[INFO] checking iguajardo/carapace against master#01706e1a34c87656fcbfce198608f4cd2ac6461a for pr-135272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Figuajardo%2Fcarapace" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iguajardo/carapace on toolchain 01706e1a34c87656fcbfce198608f4cd2ac6461a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iguajardo/carapace
[INFO] finished tweaking git repo https://github.com/iguajardo/carapace
[INFO] tweaked toml for git repo https://github.com/iguajardo/carapace written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iguajardo/carapace 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" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a937b1d217bcbc479bda1cce07a12180d36782b4fc9b391663cc37b0cf6b3a6
[INFO] running `Command { std: "docker" "start" "-a" "6a937b1d217bcbc479bda1cce07a12180d36782b4fc9b391663cc37b0cf6b3a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a937b1d217bcbc479bda1cce07a12180d36782b4fc9b391663cc37b0cf6b3a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a937b1d217bcbc479bda1cce07a12180d36782b4fc9b391663cc37b0cf6b3a6", kill_on_drop: false }`
[INFO] [stdout] 6a937b1d217bcbc479bda1cce07a12180d36782b4fc9b391663cc37b0cf6b3a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd567f3aca5815ad7a096839cf191de894e394afa02ce4cf0d53b5af6755e237
[INFO] running `Command { std: "docker" "start" "-a" "fd567f3aca5815ad7a096839cf191de894e394afa02ce4cf0d53b5af6755e237", kill_on_drop: false }`
[INFO] [stderr]     Checking carapace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `buffer_length` is never read
[INFO] [stdout]  --> src/input_buffer.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct InputBuffer {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 2 |     pub buffer: String,
[INFO] [stdout] 3 |     pub buffer_length: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Success` is never constructed
[INFO] [stdout]  --> src/meta_command.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum MetaCommandResult {
[INFO] [stdout]   |          ----------------- variant in this enum
[INFO] [stdout] 5 |     Success = 0,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer_length` is never read
[INFO] [stdout]  --> src/input_buffer.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct InputBuffer {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 2 |     pub buffer: String,
[INFO] [stdout] 3 |     pub buffer_length: usize,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute_statement` is never used
[INFO] [stdout]   --> src/prepare.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn execute_statement(statement: &mut Statement) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Success` is never constructed
[INFO] [stdout]  --> src/meta_command.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum MetaCommandResult {
[INFO] [stdout]   |          ----------------- variant in this enum
[INFO] [stdout] 5 |     Success = 0,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute_statement` is never used
[INFO] [stdout]   --> src/prepare.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn execute_statement(statement: &mut Statement) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "fd567f3aca5815ad7a096839cf191de894e394afa02ce4cf0d53b5af6755e237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd567f3aca5815ad7a096839cf191de894e394afa02ce4cf0d53b5af6755e237", kill_on_drop: false }`
[INFO] [stdout] fd567f3aca5815ad7a096839cf191de894e394afa02ce4cf0d53b5af6755e237