[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] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Frust_practice: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[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] checking hegde-atri/rust_practice against master#ecb170afc878648c3ae355dbd596c8e4b6f7ebdc for pr-139022
[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 ecb170afc878648c3ae355dbd596c8e4b6f7ebdc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "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" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaf16627efcf2b4d3fae0bfd6999e077b5da7129809eaeee7f0bbe27f8b17cdb
[INFO] running `Command { std: "docker" "start" "-a" "eaf16627efcf2b4d3fae0bfd6999e077b5da7129809eaeee7f0bbe27f8b17cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaf16627efcf2b4d3fae0bfd6999e077b5da7129809eaeee7f0bbe27f8b17cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf16627efcf2b4d3fae0bfd6999e077b5da7129809eaeee7f0bbe27f8b17cdb", kill_on_drop: false }`
[INFO] [stdout] eaf16627efcf2b4d3fae0bfd6999e077b5da7129809eaeee7f0bbe27f8b17cdb
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+ecb170afc878648c3ae355dbd596c8e4b6f7ebdc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24e26544cdaf38a6ee22f390169677cf1fcb1e92b01639436b448efd87d909f7
[INFO] running `Command { std: "docker" "start" "-a" "24e26544cdaf38a6ee22f390169677cf1fcb1e92b01639436b448efd87d909f7", 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]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking merge_two_sorted_lists_22 v0.1.0 (/opt/rustwide/workdir/leetcode/merge_two_sorted_lists_22)
[INFO] [stderr]     Checking reverse_integer v0.1.0 (/opt/rustwide/workdir/leetcode/reverse_integer)
[INFO] [stderr]     Checking longest_common_prefix v0.1.0 (/opt/rustwide/workdir/leetcode/longest_common_prefix)
[INFO] [stderr]     Checking two_sum v0.1.0 (/opt/rustwide/workdir/leetcode/two_sum)
[INFO] [stderr]     Checking add_two_numbers v0.1.0 (/opt/rustwide/workdir/leetcode/add_two_numbers)
[INFO] [stderr]     Checking valid_parentheses v0.1.0 (/opt/rustwide/workdir/leetcode/valid_parentheses)
[INFO] [stderr]     Checking palindrome_number v0.1.0 (/opt/rustwide/workdir/leetcode/palindrome_number)
[INFO] [stderr]     Checking longest_unique_substring v0.1.0 (/opt/rustwide/workdir/leetcode/longest_unique_substring)
[INFO] [stderr]     Checking generate_parentheses_22 v0.1.0 (/opt/rustwide/workdir/leetcode/generate_parentheses_22)
[INFO] [stderr]     Checking pow v0.1.0 (/opt/rustwide/workdir/leetcode/pow)
[INFO] [stderr]     Checking container_with_most_water v0.1.0 (/opt/rustwide/workdir/leetcode/container_with_most_water)
[INFO] [stderr]     Checking merge_k_sorted_lists_23 v0.1.0 (/opt/rustwide/workdir/leetcode/merge_k_sorted_lists_23)
[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]     Checking atoi v0.1.0 (/opt/rustwide/workdir/leetcode/atoi)
[INFO] [stderr]     Checking median_two_sorted_arrays v0.1.0 (/opt/rustwide/workdir/leetcode/median_two_sorted_arrays)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> leetcode/merge_k_sorted_lists_23/src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/itoa-2981e3ed9e6b4545.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/itoa-2981e3ed9e6b4545/dep-lib-itoa`
[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/palindrome_number-3ea09376aed28781.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/palindrome_number-3ea09376aed28781/dep-test-bin-palindrome_number`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaj3LulK"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/build/libc-bb11ea69d90a486b/rmetaXzUD1s"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaVCiu8n"
[INFO] [stdout] 
[INFO] [stdout] 
[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] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaOtBgg8"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaJ1X5r5"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta2CbznI"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaD2AoZB"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reverse_integer` (bin "reverse_integer" test) due to 1 previous error
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetauiEmll"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `longest_common_prefix` (bin "longest_common_prefix" test) due to 1 previous error
[INFO] [stderr] error: could not compile `generate_parentheses_22` (bin "generate_parentheses_22" test) due to 1 previous error
[INFO] [stderr] error: could not compile `libc` (build script) due to 1 previous error
[INFO] [stderr] error: could not compile `container_with_most_water` (bin "container_with_most_water") due to 1 previous error
[INFO] [stderr] error: could not compile `merge_k_sorted_lists_23` (bin "merge_k_sorted_lists_23" test); 3 warnings emitted
[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/ecb170afc878648c3ae355dbd596c8e4b6f7ebdc/bin/rustc --crate-name merge_k_sorted_lists_23 --edition=2021 leetcode/merge_k_sorted_lists_23/src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=7116d957c4de03dd -C extra-filename=-73342aa1766c2367 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] error: could not compile `valid_parentheses` (bin "valid_parentheses" test) due to 1 previous error
[INFO] [stderr] error: could not compile `longest_common_prefix` (bin "longest_common_prefix") due to 1 previous error
[INFO] [stderr] error: could not compile `two_sum` (bin "two_sum" test) due to 1 previous error
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetanI4ACX/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ppv-lite86` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "24e26544cdaf38a6ee22f390169677cf1fcb1e92b01639436b448efd87d909f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e26544cdaf38a6ee22f390169677cf1fcb1e92b01639436b448efd87d909f7", kill_on_drop: false }`
[INFO] [stdout] 24e26544cdaf38a6ee22f390169677cf1fcb1e92b01639436b448efd87d909f7