[INFO] cloning repository https://github.com/unixsuperhero/xt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unixsuperhero/xt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funixsuperhero%2Fxt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funixsuperhero%2Fxt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09488133fb05aa2936849f65b25e3d8453cff731
[INFO] checking unixsuperhero/xt against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funixsuperhero%2Fxt" "/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/unixsuperhero/xt on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/unixsuperhero/xt
[INFO] finished tweaking git repo https://github.com/unixsuperhero/xt
[INFO] tweaked toml for git repo https://github.com/unixsuperhero/xt written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/unixsuperhero/xt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", 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] aa44a6a227f693b192b3f0d96c2c86bb07bb34fcbf2316d5c9b330051704b47e
[INFO] running `Command { std: "docker" "start" "-a" "aa44a6a227f693b192b3f0d96c2c86bb07bb34fcbf2316d5c9b330051704b47e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa44a6a227f693b192b3f0d96c2c86bb07bb34fcbf2316d5c9b330051704b47e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa44a6a227f693b192b3f0d96c2c86bb07bb34fcbf2316d5c9b330051704b47e", kill_on_drop: false }`
[INFO] [stdout] aa44a6a227f693b192b3f0d96c2c86bb07bb34fcbf2316d5c9b330051704b47e
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c6190d1cec775e0092947e30acb10f9cf04b17aa2fa242729f5bad22e36cd8a
[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" "1c6190d1cec775e0092947e30acb10f9cf04b17aa2fa242729f5bad22e36cd8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking xt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `cursor`
[INFO] [stdout]  --> src/app.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     cursor: Pos,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `screen_area`
[INFO] [stdout]  --> src/app.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     screen_area: Pos,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `table`
[INFO] [stdout]  --> src/app.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     table: Table<'a>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Area`
[INFO] [stdout]  --> src/area.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Area {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `row_rng`
[INFO] [stdout]   --> src/area.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn row_rng(&self) -> RangeInclusive<usize> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `col_rng`
[INFO] [stdout]   --> src/area.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn col_rng(&self) -> RangeInclusive<usize> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `row_cnt`
[INFO] [stdout]   --> src/area.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn row_cnt(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `col_cnt`
[INFO] [stdout]   --> src/area.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn col_cnt(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/area.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/csv_loader.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]   --> src/database.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     head: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_table`
[INFO] [stdout]   --> src/database.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn current_table(&self) -> Option<&Table> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dbl_vec_area`
[INFO] [stdout]   --> src/database.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn dbl_vec_area(dblvec: &[Vec<String>]) -> Pos {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cells`
[INFO] [stdout]    --> src/database.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     cells: Vec<usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `columns`
[INFO] [stdout]    --> src/database.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     columns: Vec<&'a Column>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `row_cnt`
[INFO] [stdout]    --> src/database.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 |     row_cnt: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `col_cnt`
[INFO] [stdout]    --> src/database.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     col_cnt: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `header`
[INFO] [stdout]    --> src/database.rs:207:12
[INFO] [stdout]     |
[INFO] [stdout] 207 |     pub fn header(&mut self, new_header: String) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_widths`
[INFO] [stdout]    --> src/database.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn from_widths(widths: Vec<usize>) -> Vec<Column> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sutoa.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/sutoa.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn set(&mut self, val: T) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/sutoa.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn get(&self, key: usize) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_key`
[INFO] [stdout]   --> src/sutoa.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn get_key(&self, val: T) -> Option<&usize> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/sutoa.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell1`
[INFO] [stdout]    --> src/database.rs:234:13
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let cell1 = db.insert_cell(&String::from("a"));
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_cell1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tab`
[INFO] [stdout]    --> src/database.rs:347:13
[INFO] [stdout]     |
[INFO] [stdout] 347 |         let tab = db.load_table(&tb);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_tab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cursor`
[INFO] [stdout]  --> src/app.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     cursor: Pos,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `screen_area`
[INFO] [stdout]  --> src/app.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     screen_area: Pos,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `table`
[INFO] [stdout]  --> src/app.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     table: Table<'a>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/csv_loader.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]   --> src/database.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     head: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_table`
[INFO] [stdout]   --> src/database.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn current_table(&self) -> Option<&Table> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dbl_vec_area`
[INFO] [stdout]   --> src/database.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn dbl_vec_area(dblvec: &[Vec<String>]) -> Pos {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cells`
[INFO] [stdout]    --> src/database.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     cells: Vec<usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `columns`
[INFO] [stdout]    --> src/database.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     columns: Vec<&'a Column>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `row_cnt`
[INFO] [stdout]    --> src/database.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 |     row_cnt: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `col_cnt`
[INFO] [stdout]    --> src/database.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     col_cnt: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_widths`
[INFO] [stdout]    --> src/database.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn from_widths(widths: Vec<usize>) -> Vec<Column> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.48s
[INFO] running `Command { std: "docker" "inspect" "1c6190d1cec775e0092947e30acb10f9cf04b17aa2fa242729f5bad22e36cd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c6190d1cec775e0092947e30acb10f9cf04b17aa2fa242729f5bad22e36cd8a", kill_on_drop: false }`
[INFO] [stdout] 1c6190d1cec775e0092947e30acb10f9cf04b17aa2fa242729f5bad22e36cd8a