[INFO] cloning repository https://github.com/seanchen1991/AvlTreeSet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seanchen1991/AvlTreeSet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanchen1991%2FAvlTreeSet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanchen1991%2FAvlTreeSet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cf7a8f1dfd355bc6ebeba06dca1c66e165e7b4a
[INFO] checking seanchen1991/AvlTreeSet against master#2a023bf80a6fbd6a06d5460a34eb247b986286ed for pr-143764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanchen1991%2FAvlTreeSet" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/seanchen1991/AvlTreeSet
[INFO] finished tweaking git repo https://github.com/seanchen1991/AvlTreeSet
[INFO] tweaked toml for git repo https://github.com/seanchen1991/AvlTreeSet written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/seanchen1991/AvlTreeSet on toolchain 2a023bf80a6fbd6a06d5460a34eb247b986286ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/seanchen1991/AvlTreeSet 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" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9951fffa5ffa8b7b1cefb9d6723a2d403d7e4decbc5c538b6a23d610d4d47966
[INFO] running `Command { std: "docker" "start" "-a" "9951fffa5ffa8b7b1cefb9d6723a2d403d7e4decbc5c538b6a23d610d4d47966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9951fffa5ffa8b7b1cefb9d6723a2d403d7e4decbc5c538b6a23d610d4d47966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9951fffa5ffa8b7b1cefb9d6723a2d403d7e4decbc5c538b6a23d610d4d47966", kill_on_drop: false }`
[INFO] [stdout] 9951fffa5ffa8b7b1cefb9d6723a2d403d7e4decbc5c538b6a23d610d4d47966
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fd202d5831b5d7a9d30392de6437e0ff37ae73f7839798255bf23247e8f5917
[INFO] running `Command { std: "docker" "start" "-a" "1fd202d5831b5d7a9d30392de6437e0ff37ae73f7839798255bf23247e8f5917", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking avl-tree-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `AvlTreeSet` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct AvlTreeSet<T: Ord> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AvlTreeSetIter` is never constructed
[INFO] [stdout]   --> src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct AvlTreeSetIter<'a, T: Ord> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `insert` are never used
[INFO] [stdout]    --> src/lib.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl<T: Ord> AvlTreeSet<T> {
[INFO] [stdout]     | -------------------------- associated items in this implementation
[INFO] [stdout] 142 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     fn insert(&mut self, value: T) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]    --> src/lib.rs:202:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | impl<'a, T: 'a + Ord> AvlTreeSet<T> {
[INFO] [stdout]     | ----------------------------------- method in this implementation
[INFO] [stdout] 202 |     fn iter(&'a self) -> AvlTreeSetIter<'a, T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/2a023bf80a6fbd6a06d5460a34eb247b986286ed/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.34/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=31f30a402ced7b5a -C extra-filename=-92446bccc3d8e01a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a94dec69a098e7b7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ec2124b7a2def449.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-467b3a2737902552.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "1fd202d5831b5d7a9d30392de6437e0ff37ae73f7839798255bf23247e8f5917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd202d5831b5d7a9d30392de6437e0ff37ae73f7839798255bf23247e8f5917", kill_on_drop: false }`
[INFO] [stdout] 1fd202d5831b5d7a9d30392de6437e0ff37ae73f7839798255bf23247e8f5917