[INFO] cloning repository https://github.com/hegde-atri/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hegde-atri/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db9291cba66d96216e22386e399989cf6c036636
[INFO] building hegde-atri/rust_practice against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Frust_practice" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hegde-atri/rust_practice on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hegde-atri/rust_practice
[INFO] finished tweaking git repo https://github.com/hegde-atri/rust_practice
[INFO] tweaked toml for git repo https://github.com/hegde-atri/rust_practice written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hegde-atri/rust_practice 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c11a3ec416a143b74b4eadd258ddc5a19a430e8f5259ea63618e08033ceeb311
[INFO] running `Command { std: "docker" "start" "-a" "c11a3ec416a143b74b4eadd258ddc5a19a430e8f5259ea63618e08033ceeb311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c11a3ec416a143b74b4eadd258ddc5a19a430e8f5259ea63618e08033ceeb311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c11a3ec416a143b74b4eadd258ddc5a19a430e8f5259ea63618e08033ceeb311", kill_on_drop: false }`
[INFO] [stdout] c11a3ec416a143b74b4eadd258ddc5a19a430e8f5259ea63618e08033ceeb311
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f7d7a6d931cd66aeb6b745262dfcacd0959046be2eb8356221937b5951260f9
[INFO] running `Command { std: "docker" "start" "-a" "5f7d7a6d931cd66aeb6b745262dfcacd0959046be2eb8356221937b5951260f9", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling two_sum v0.1.0 (/opt/rustwide/workdir/leetcode/two_sum)
[INFO] [stderr]    Compiling median_two_sorted_arrays v0.1.0 (/opt/rustwide/workdir/leetcode/median_two_sorted_arrays)
[INFO] [stderr]    Compiling merge_two_sorted_lists_22 v0.1.0 (/opt/rustwide/workdir/leetcode/merge_two_sorted_lists_22)
[INFO] [stderr]    Compiling jug_search_com1005 v0.1.0 (/opt/rustwide/workdir/general/jug_search_com1005)
[INFO] [stderr]    Compiling valid_parentheses v0.1.0 (/opt/rustwide/workdir/leetcode/valid_parentheses)
[INFO] [stderr]    Compiling container_with_most_water v0.1.0 (/opt/rustwide/workdir/leetcode/container_with_most_water)
[INFO] [stderr]    Compiling pow v0.1.0 (/opt/rustwide/workdir/leetcode/pow)
[INFO] [stderr]    Compiling atoi v0.1.0 (/opt/rustwide/workdir/leetcode/atoi)
[INFO] [stderr]    Compiling palindrome_number v0.1.0 (/opt/rustwide/workdir/leetcode/palindrome_number)
[INFO] [stderr]    Compiling longest_common_prefix v0.1.0 (/opt/rustwide/workdir/leetcode/longest_common_prefix)
[INFO] [stderr]    Compiling sorting v0.1.0 (/opt/rustwide/workdir/general/sorting)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> leetcode/merge_two_sorted_lists_22/src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 10 |     #[inline]
[INFO] [stdout] 11 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling longest_unique_substring v0.1.0 (/opt/rustwide/workdir/leetcode/longest_unique_substring)
[INFO] [stderr]    Compiling add_two_numbers v0.1.0 (/opt/rustwide/workdir/leetcode/add_two_numbers)
[INFO] [stderr]    Compiling generate_parentheses_22 v0.1.0 (/opt/rustwide/workdir/leetcode/generate_parentheses_22)
[INFO] [stderr]    Compiling reverse_integer v0.1.0 (/opt/rustwide/workdir/leetcode/reverse_integer)
[INFO] [stderr]    Compiling merge_k_sorted_lists_23 v0.1.0 (/opt/rustwide/workdir/leetcode/merge_k_sorted_lists_23)
[INFO] [stdout] warning: unused variable: `least`
[INFO] [stdout]   --> leetcode/merge_k_sorted_lists_23/src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut least: i32;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_least`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lists`
[INFO] [stdout]   --> leetcode/merge_k_sorted_lists_23/src/main.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn merge_k_lists(lists: Vec<Option<Box<ListNode>>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_lists`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> leetcode/merge_k_sorted_lists_23/src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 10 |     #[inline]
[INFO] [stdout] 11 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `helper` is never used
[INFO] [stdout]   --> leetcode/merge_k_sorted_lists_23/src/main.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |         fn helper() -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-format v0.4.4
[INFO] [stderr] error: failed to write `/opt/rustwide/target/debug/.fingerprint/ppv-lite86-4250c766b4729968/lib-ppv_lite86.json`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/add_two_numbers-13f2ef3dfc7c04ed.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/add_two_numbers-13f2ef3dfc7c04ed/dep-bin-add_two_numbers`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `num-format` (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/ad211ced81509462cdfe4c29ed10f97279a0acae/bin/rustc --crate-name num_format --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-format-0.4.4/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 -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("cfg-if", "default", "encoding_rs", "lazy_static", "libc", "num-bigint", "num-format-windows", "serde", "std", "widestring", "winapi", "with-num-bigint", "with-serde", "with-system-locale"))' -C metadata=c7c6cff3694ede1e -C extra-filename=-3a3ab415dd5d22c0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-256b2dbdb11e719f.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-999708371cbed003.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "5f7d7a6d931cd66aeb6b745262dfcacd0959046be2eb8356221937b5951260f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7d7a6d931cd66aeb6b745262dfcacd0959046be2eb8356221937b5951260f9", kill_on_drop: false }`
[INFO] [stdout] 5f7d7a6d931cd66aeb6b745262dfcacd0959046be2eb8356221937b5951260f9