[INFO] cloning repository https://github.com/buhe/study_rust_smart_pointer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/buhe/study_rust_smart_pointer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuhe%2Fstudy_rust_smart_pointer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuhe%2Fstudy_rust_smart_pointer'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuhe%2Fstudy_rust_smart_pointer/branches/: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/buhe/study_rust_smart_pointer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/buhe/study_rust_smart_pointer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuhe%2Fstudy_rust_smart_pointer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuhe%2Fstudy_rust_smart_pointer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1462333bc214c1787126c04c3e64e770046e9a2c
[INFO] checking buhe/study_rust_smart_pointer/1462333bc214c1787126c04c3e64e770046e9a2c against master#2dece5bb62f234f5622a08289c5a3d1555cd7843 for pr-132325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuhe%2Fstudy_rust_smart_pointer" "/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/buhe/study_rust_smart_pointer on toolchain 2dece5bb62f234f5622a08289c5a3d1555cd7843
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/buhe/study_rust_smart_pointer
[INFO] finished tweaking git repo https://github.com/buhe/study_rust_smart_pointer
[INFO] tweaked toml for git repo https://github.com/buhe/study_rust_smart_pointer written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/buhe/study_rust_smart_pointer 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" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef38c249b65e51f0efadff0fd6455291fc77f0a7da91216f561c03dd0c07d2c4
[INFO] running `Command { std: "docker" "start" "-a" "ef38c249b65e51f0efadff0fd6455291fc77f0a7da91216f561c03dd0c07d2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef38c249b65e51f0efadff0fd6455291fc77f0a7da91216f561c03dd0c07d2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef38c249b65e51f0efadff0fd6455291fc77f0a7da91216f561c03dd0c07d2c4", kill_on_drop: false }`
[INFO] [stdout] ef38c249b65e51f0efadff0fd6455291fc77f0a7da91216f561c03dd0c07d2c4
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+2dece5bb62f234f5622a08289c5a3d1555cd7843" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 385339d12932a1d385464bb5585e1589d26330db262e40de15dfbc6d1b46264f
[INFO] running `Command { std: "docker" "start" "-a" "385339d12932a1d385464bb5585e1589d26330db262e40de15dfbc6d1b46264f", kill_on_drop: false }`
[INFO] [stderr]     Checking study_rust_smart_pointer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Messenger` is never used
[INFO] [stdout]  --> src/smart_pointer.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Messenger {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LimitTracker` is never constructed
[INFO] [stdout]  --> src/smart_pointer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct LimitTracker<'a, T: Messenger> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_value` are never used
[INFO] [stdout]   --> src/smart_pointer.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<'a, T> LimitTracker<'a, T>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     T: Messenger,
[INFO] [stdout]    | |_________________- associated items in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn new(messenger: &T, max: usize) -> LimitTracker<T> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |       pub fn set_value(&mut self, value: usize) {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "385339d12932a1d385464bb5585e1589d26330db262e40de15dfbc6d1b46264f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "385339d12932a1d385464bb5585e1589d26330db262e40de15dfbc6d1b46264f", kill_on_drop: false }`
[INFO] [stdout] 385339d12932a1d385464bb5585e1589d26330db262e40de15dfbc6d1b46264f