[INFO] cloning repository https://github.com/c6supper/leetcode-way-to-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c6supper/leetcode-way-to-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc6supper%2Fleetcode-way-to-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc6supper%2Fleetcode-way-to-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92a8d125af31c47d821744a5e5675373fc34680a
[INFO] checking c6supper/leetcode-way-to-rust against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc6supper%2Fleetcode-way-to-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/c6supper/leetcode-way-to-rust
[INFO] finished tweaking git repo https://github.com/c6supper/leetcode-way-to-rust
[INFO] tweaked toml for git repo https://github.com/c6supper/leetcode-way-to-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/c6supper/leetcode-way-to-rust on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/c6supper/leetcode-way-to-rust 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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca38f3d2a41304189f2e84ed21e193649e7744a92c8e58e9f41792060fb4fe34
[INFO] running `Command { std: "docker" "start" "-a" "ca38f3d2a41304189f2e84ed21e193649e7744a92c8e58e9f41792060fb4fe34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca38f3d2a41304189f2e84ed21e193649e7744a92c8e58e9f41792060fb4fe34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca38f3d2a41304189f2e84ed21e193649e7744a92c8e58e9f41792060fb4fe34", kill_on_drop: false }`
[INFO] [stdout] ca38f3d2a41304189f2e84ed21e193649e7744a92c8e58e9f41792060fb4fe34
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de077c79ebf0bb430063c69255fe37995472d0d2dbb1daa43922252310b152b4
[INFO] running `Command { std: "docker" "start" "-a" "de077c79ebf0bb430063c69255fe37995472d0d2dbb1daa43922252310b152b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking os_str_bytes v6.5.1
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking best_time_to_buy_and_sell_stock v0.1.0 (/opt/rustwide/workdir/crates/best_time_to_buy_and_sell_stock)
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking simplify_path v0.1.0 (/opt/rustwide/workdir/crates/simplify_path)
[INFO] [stderr]     Checking assign_cookies v0.1.0 (/opt/rustwide/workdir/crates/assign_cookies)
[INFO] [stderr]     Checking minimize_maximum_of_array v0.1.0 (/opt/rustwide/workdir/crates/minimize_maximum_of_array)
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking dp v0.1.0 (/opt/rustwide/workdir/crates/dp)
[INFO] [stderr]     Checking climbing_stairs v0.1.0 (/opt/rustwide/workdir/crates/climbing_stairs)
[INFO] [stderr]     Checking coin_change_ii v0.1.0 (/opt/rustwide/workdir/crates/coin_change_ii)
[INFO] [stderr]     Checking house_robber v0.1.0 (/opt/rustwide/workdir/crates/house_robber)
[INFO] [stderr]     Checking combination_sum_vi v0.1.0 (/opt/rustwide/workdir/crates/combination_sum_vi)
[INFO] [stderr]     Checking perfect_squares v0.1.0 (/opt/rustwide/workdir/crates/perfect_squares)
[INFO] [stderr]     Checking target_sum v0.1.0 (/opt/rustwide/workdir/crates/target_sum)
[INFO] [stderr]     Checking longest_substring_no_repeat v0.1.0 (/opt/rustwide/workdir/crates/longest_substring_no_repeat)
[INFO] [stderr]     Checking ones_and_zeros v0.1.0 (/opt/rustwide/workdir/crates/ones_and_zeros)
[INFO] [stderr]     Checking partition_equal_subset_sum v0.1.0 (/opt/rustwide/workdir/crates/partition_equal_subset_sum)
[INFO] [stderr]     Checking minimum_size_subarray_sum v0.1.0 (/opt/rustwide/workdir/crates/minimum_size_subarray_sum)
[INFO] [stderr]     Checking house_robber_ii v0.1.0 (/opt/rustwide/workdir/crates/house_robber_ii)
[INFO] [stderr]     Checking best_time_to_buy_and_sell_stock_iii v0.1.0 (/opt/rustwide/workdir/crates/best_time_to_buy_and_sell_stock_iii)
[INFO] [stderr]     Checking last_stone_weight_ii v0.1.0 (/opt/rustwide/workdir/crates/last_stone_weight_ii)
[INFO] [stderr]     Checking best_time_to_buy_and_sell_stock_ii v0.1.0 (/opt/rustwide/workdir/crates/best_time_to_buy_and_sell_stock_ii)
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling embed-doc-image v0.1.4
[INFO] [stderr]     Checking clone_graph v0.1.0 (/opt/rustwide/workdir/crates/clone_graph)
[INFO] [stderr]     Checking house_robber_iii v0.1.0 (/opt/rustwide/workdir/crates/house_robber_iii)
[INFO] [stderr]     Checking height_balanced_bst v0.1.0 (/opt/rustwide/workdir/crates/height_balanced_bst)
[INFO] [stderr]     Checking max_depth_bst v0.1.0 (/opt/rustwide/workdir/crates/max_depth_bst)
[INFO] [stderr]     Checking unified_bst v0.1.0 (/opt/rustwide/workdir/crates/unified_bst)
[INFO] [stderr]     Checking add_two_numbers v0.1.0 (/opt/rustwide/workdir/crates/add_two_numbers)
[INFO] [stderr]     Checking min_depth_bst v0.1.0 (/opt/rustwide/workdir/crates/min_depth_bst)
[INFO] [stderr]     Checking bst v0.1.0 (/opt/rustwide/workdir/crates/bst)
[INFO] [stderr]     Checking symmetric_tree v0.1.0 (/opt/rustwide/workdir/crates/symmetric_tree)
[INFO] [stderr]     Checking bst_path v0.1.0 (/opt/rustwide/workdir/crates/bst_path)
[INFO] [stderr]     Checking bst_level_traverse v0.1.0 (/opt/rustwide/workdir/crates/bst_level_traverse)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> crates/bst_path/src/lib.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn binary_tree_paths(
[INFO] [stdout]    |            ----------------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 56 |         root: Option<Rc<RefCell<TreeNode>>>,
[INFO] [stdout] 57 |     ) -> Vec<String> {
[INFO] [stdout]    |          ^^^^^^^^^^^ expected `Vec<String>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bst_path` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> crates/bst_path/src/lib.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn binary_tree_paths(
[INFO] [stdout]    |            ----------------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 56 |         root: Option<Rc<RefCell<TreeNode>>>,
[INFO] [stdout] 57 |     ) -> Vec<String> {
[INFO] [stdout]    |          ^^^^^^^^^^^ expected `Vec<String>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bst_path` (lib) due to 1 previous error
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `serde_derive` (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/f8f6997469237299c1d60814c7b9828602a1f8e4/bin/rustc --crate-name serde_derive --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_derive-1.0.164/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "deserialize_in_place"))' -C metadata=743b31a96af1eb16 -C extra-filename=-107af52970d0885f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-95b1871c46d05d76.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-54e1bae7ce9ba288.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-f037a7ed61b1628c.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "de077c79ebf0bb430063c69255fe37995472d0d2dbb1daa43922252310b152b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de077c79ebf0bb430063c69255fe37995472d0d2dbb1daa43922252310b152b4", kill_on_drop: false }`
[INFO] [stdout] de077c79ebf0bb430063c69255fe37995472d0d2dbb1daa43922252310b152b4