[INFO] cloning repository https://github.com/Jordan-Rowland/csv-writer-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jordan-Rowland/csv-writer-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordan-Rowland%2Fcsv-writer-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordan-Rowland%2Fcsv-writer-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f21ae3d81f538fa56a0c99892cda0f32fd844aee
[INFO] checking Jordan-Rowland/csv-writer-rust against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordan-Rowland%2Fcsv-writer-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jordan-Rowland/csv-writer-rust on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jordan-Rowland/csv-writer-rust
[INFO] finished tweaking git repo https://github.com/Jordan-Rowland/csv-writer-rust
[INFO] tweaked toml for git repo https://github.com/Jordan-Rowland/csv-writer-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Jordan-Rowland/csv-writer-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b8b240d73c8ad072d59a29c57268f27819c1c2459f51b69f94e5ae6c6899e55
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b8b240d73c8ad072d59a29c57268f27819c1c2459f51b69f94e5ae6c6899e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b8b240d73c8ad072d59a29c57268f27819c1c2459f51b69f94e5ae6c6899e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b8b240d73c8ad072d59a29c57268f27819c1c2459f51b69f94e5ae6c6899e55", kill_on_drop: false }`
[INFO] [stdout] 2b8b240d73c8ad072d59a29c57268f27819c1c2459f51b69f94e5ae6c6899e55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e43c9b8f2e6a5e5f4e739d5d6d31e262e4ada5aad56fbe5ec4aefa5a3772d7d3
[INFO] running `Command { std: "docker" "start" "-a" "e43c9b8f2e6a5e5f4e739d5d6d31e262e4ada5aad56fbe5ec4aefa5a3772d7d3", kill_on_drop: false }`
[INFO] [stderr]     Checking reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dc`
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let dc = d.get_column("email");
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_dc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `New`
[INFO] [stdout]   --> src/csv_writer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     New(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_filename`
[INFO] [stdout]   --> src/csv_writer.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn get_filename(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dc`
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let dc = d.get_column("email");
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_dc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `edit_row`
[INFO] [stdout]    --> src/csv_writer.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn edit_row(&mut self, index: usize, row: Row) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `drop_row`
[INFO] [stdout]    --> src/csv_writer.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn drop_row(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_filename`
[INFO] [stdout]    --> src/csv_writer.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn set_filename(&mut self, new_filename: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc_rows_len`
[INFO] [stdout]    --> src/csv_writer.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn calc_rows_len(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open_file`
[INFO] [stdout]    --> src/csv_writer.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn open_file(filename: &str) -> std::io::Result<Self> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `New`
[INFO] [stdout]   --> src/csv_writer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     New(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_filename`
[INFO] [stdout]   --> src/csv_writer.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn get_filename(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `edit_row`
[INFO] [stdout]    --> src/csv_writer.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn edit_row(&mut self, index: usize, row: Row) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `drop_row`
[INFO] [stdout]    --> src/csv_writer.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn drop_row(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_filename`
[INFO] [stdout]    --> src/csv_writer.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn set_filename(&mut self, new_filename: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc_rows_len`
[INFO] [stdout]    --> src/csv_writer.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn calc_rows_len(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open_file`
[INFO] [stdout]    --> src/csv_writer.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn open_file(filename: &str) -> std::io::Result<Self> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "e43c9b8f2e6a5e5f4e739d5d6d31e262e4ada5aad56fbe5ec4aefa5a3772d7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e43c9b8f2e6a5e5f4e739d5d6d31e262e4ada5aad56fbe5ec4aefa5a3772d7d3", kill_on_drop: false }`
[INFO] [stdout] e43c9b8f2e6a5e5f4e739d5d6d31e262e4ada5aad56fbe5ec4aefa5a3772d7d3