[INFO] cloning repository https://github.com/mdacach/leetcode_solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdacach/leetcode_solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdacach%2Fleetcode_solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdacach%2Fleetcode_solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a32d8f5e54f564c2220827186495997bded28cb
[INFO] checking mdacach/leetcode_solutions against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdacach%2Fleetcode_solutions" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdacach/leetcode_solutions
[INFO] finished tweaking git repo https://github.com/mdacach/leetcode_solutions
[INFO] tweaked toml for git repo https://github.com/mdacach/leetcode_solutions written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdacach/leetcode_solutions on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdacach/leetcode_solutions 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "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]   |
[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]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking mdacach/leetcode_solutions against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdacach%2Fleetcode_solutions" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdacach/leetcode_solutions
[INFO] finished tweaking git repo https://github.com/mdacach/leetcode_solutions
[INFO] tweaked toml for git repo https://github.com/mdacach/leetcode_solutions written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdacach/leetcode_solutions on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdacach/leetcode_solutions 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "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]   |
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b505d25d3109178d15538d17fe1c0eec0560c0c3f6e8428e5d62d8f8c64f47ab
[INFO] running `Command { std: "docker" "start" "-a" "b505d25d3109178d15538d17fe1c0eec0560c0c3f6e8428e5d62d8f8c64f47ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b505d25d3109178d15538d17fe1c0eec0560c0c3f6e8428e5d62d8f8c64f47ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b505d25d3109178d15538d17fe1c0eec0560c0c3f6e8428e5d62d8f8c64f47ab", kill_on_drop: false }`
[INFO] [stdout] b505d25d3109178d15538d17fe1c0eec0560c0c3f6e8428e5d62d8f8c64f47ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38875a6f9fddcdf02b30c4004c632cdc7fb18674c0105032115272e9d647599f
[INFO] running `Command { std: "docker" "start" "-a" "38875a6f9fddcdf02b30c4004c632cdc7fb18674c0105032115272e9d647599f", 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]   |
[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]     Checking lc53 v0.1.0 (/opt/rustwide/workdir/lc53)
[INFO] [stderr]     Checking lc121 v0.1.0 (/opt/rustwide/workdir/lc121)
[INFO] [stderr]     Checking lc1882 v0.1.0 (/opt/rustwide/workdir/lc1882)
[INFO] [stderr]     Checking lc21 v0.1.0 (/opt/rustwide/workdir/lc21)
[INFO] [stderr]     Checking lc57 v0.1.0 (/opt/rustwide/workdir/lc57)
[INFO] [stderr]     Checking lc1 v0.1.0 (/opt/rustwide/workdir/lc1)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> lc21/src/lib.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lc1881 v0.1.0 (/opt/rustwide/workdir/lc1881)
[INFO] [stderr]     Checking lc20 v0.1.0 (/opt/rustwide/workdir/lc20)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> lc21/src/lib.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "38875a6f9fddcdf02b30c4004c632cdc7fb18674c0105032115272e9d647599f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38875a6f9fddcdf02b30c4004c632cdc7fb18674c0105032115272e9d647599f", kill_on_drop: false }`
[INFO] [stdout] 38875a6f9fddcdf02b30c4004c632cdc7fb18674c0105032115272e9d647599f
