[INFO] cloning repository https://github.com/sivakarasala/ds-algo-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sivakarasala/ds-algo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivakarasala%2Fds-algo-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivakarasala%2Fds-algo-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 140780dd9264836a7c5b28a5ce5bb479c1577575 [INFO] checking sivakarasala/ds-algo-rust against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivakarasala%2Fds-algo-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] validating manifest of git repo https://github.com/sivakarasala/ds-algo-rust on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sivakarasala/ds-algo-rust [INFO] finished tweaking git repo https://github.com/sivakarasala/ds-algo-rust [INFO] tweaked toml for git repo https://github.com/sivakarasala/ds-algo-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sivakarasala/ds-algo-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e9d824c8839737fb7f80cf6a4db4a59a82bdeaf0a4c495f0a4ee1577fb265ebd [INFO] running `Command { std: "docker" "start" "-a" "e9d824c8839737fb7f80cf6a4db4a59a82bdeaf0a4c495f0a4ee1577fb265ebd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e9d824c8839737fb7f80cf6a4db4a59a82bdeaf0a4c495f0a4ee1577fb265ebd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9d824c8839737fb7f80cf6a4db4a59a82bdeaf0a4c495f0a4ee1577fb265ebd", kill_on_drop: false }` [INFO] [stdout] e9d824c8839737fb7f80cf6a4db4a59a82bdeaf0a4c495f0a4ee1577fb265ebd [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9f70916707bb66dcbf6a1c4161aadf3d8235ad07ce69dbd655e9e6d38c5dc017 [INFO] running `Command { std: "docker" "start" "-a" "9f70916707bb66dcbf6a1c4161aadf3d8235ad07ce69dbd655e9e6d38c5dc017", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking ds-algo-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias `SingleLink` is never used [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | type SingleLink = Option>>; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl Node { [INFO] [stdout] | --------- associated function in this implementation [INFO] [stdout] 12 | // create a new node [INFO] [stdout] 13 | fn new(value: String) -> Rc> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TransactionLog` is never constructed [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct TransactionLog { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new_empty`, `append`, and `pop` are never used [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 23 | impl TransactionLog { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 24 | pub fn new_empty() -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn append(&mut self, value: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s [INFO] running `Command { std: "docker" "inspect" "9f70916707bb66dcbf6a1c4161aadf3d8235ad07ce69dbd655e9e6d38c5dc017", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f70916707bb66dcbf6a1c4161aadf3d8235ad07ce69dbd655e9e6d38c5dc017", kill_on_drop: false }` [INFO] [stdout] 9f70916707bb66dcbf6a1c4161aadf3d8235ad07ce69dbd655e9e6d38c5dc017 [INFO] checking sivakarasala/ds-algo-rust against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivakarasala%2Fds-algo-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sivakarasala/ds-algo-rust on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sivakarasala/ds-algo-rust [INFO] finished tweaking git repo https://github.com/sivakarasala/ds-algo-rust [INFO] tweaked toml for git repo https://github.com/sivakarasala/ds-algo-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sivakarasala/ds-algo-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a86d82d425e5e967776243afeafb1689046a9e767feebd2b1a56304fb00d3041 [INFO] running `Command { std: "docker" "start" "-a" "a86d82d425e5e967776243afeafb1689046a9e767feebd2b1a56304fb00d3041", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a86d82d425e5e967776243afeafb1689046a9e767feebd2b1a56304fb00d3041", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a86d82d425e5e967776243afeafb1689046a9e767feebd2b1a56304fb00d3041", kill_on_drop: false }` [INFO] [stdout] a86d82d425e5e967776243afeafb1689046a9e767feebd2b1a56304fb00d3041 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3774da9bf5815cd8eb7faeee898713adac93f44729e023321f1a99970884a410 [INFO] running `Command { std: "docker" "start" "-a" "3774da9bf5815cd8eb7faeee898713adac93f44729e023321f1a99970884a410", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking ds-algo-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias `SingleLink` is never used [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | type SingleLink = Option>>; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl Node { [INFO] [stdout] | --------- associated function in this implementation [INFO] [stdout] 12 | // create a new node [INFO] [stdout] 13 | fn new(value: String) -> Rc> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TransactionLog` is never constructed [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct TransactionLog { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new_empty`, `append`, and `pop` are never used [INFO] [stdout] --> src/bin/c04p01_singly_linked_list.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 23 | impl TransactionLog { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 24 | pub fn new_empty() -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn append(&mut self, value: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s [INFO] running `Command { std: "docker" "inspect" "3774da9bf5815cd8eb7faeee898713adac93f44729e023321f1a99970884a410", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3774da9bf5815cd8eb7faeee898713adac93f44729e023321f1a99970884a410", kill_on_drop: false }` [INFO] [stdout] 3774da9bf5815cd8eb7faeee898713adac93f44729e023321f1a99970884a410