[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#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordan-Rowland%2Fcsv-writer-rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jordan-Rowland/csv-writer-rust on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-10/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b421e531d93a6db28b7b765d5e3891879ec9fc92a4d377d7af17f0817f2481d
[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" "4b421e531d93a6db28b7b765d5e3891879ec9fc92a4d377d7af17f0817f2481d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b421e531d93a6db28b7b765d5e3891879ec9fc92a4d377d7af17f0817f2481d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b421e531d93a6db28b7b765d5e3891879ec9fc92a4d377d7af17f0817f2481d", kill_on_drop: false }`
[INFO] [stdout] 4b421e531d93a6db28b7b765d5e3891879ec9fc92a4d377d7af17f0817f2481d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 498ab2722c44886ea40e55c4db8178057f322e507fb993284654bf72f57ddcdb
[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" "498ab2722c44886ea40e55c4db8178057f322e507fb993284654bf72f57ddcdb", 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: 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: 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: 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 0.41s
[INFO] running `Command { std: "docker" "inspect" "498ab2722c44886ea40e55c4db8178057f322e507fb993284654bf72f57ddcdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "498ab2722c44886ea40e55c4db8178057f322e507fb993284654bf72f57ddcdb", kill_on_drop: false }`
[INFO] [stdout] 498ab2722c44886ea40e55c4db8178057f322e507fb993284654bf72f57ddcdb