[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] testing unixsuperhero/xt against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funixsuperhero%2Fxt" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unixsuperhero/xt on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-6/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 580d869c5029390957853f11c597ad8c7ecc1fd3666e1b1fd844624a653c0cb5
[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" "580d869c5029390957853f11c597ad8c7ecc1fd3666e1b1fd844624a653c0cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "580d869c5029390957853f11c597ad8c7ecc1fd3666e1b1fd844624a653c0cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580d869c5029390957853f11c597ad8c7ecc1fd3666e1b1fd844624a653c0cb5", kill_on_drop: false }`
[INFO] [stdout] 580d869c5029390957853f11c597ad8c7ecc1fd3666e1b1fd844624a653c0cb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e16eed924c96d1633f760a0981e96dad5a7b155566c4fe3ebab14c733823dec
[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" "8e16eed924c96d1633f760a0981e96dad5a7b155566c4fe3ebab14c733823dec", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling xt v0.3.0 (/opt/rustwide/workdir)
[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]   = note: `#[warn(dead_code)]` on by default
[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: 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: 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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.70s
[INFO] running `Command { std: "docker" "inspect" "8e16eed924c96d1633f760a0981e96dad5a7b155566c4fe3ebab14c733823dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e16eed924c96d1633f760a0981e96dad5a7b155566c4fe3ebab14c733823dec", kill_on_drop: false }`
[INFO] [stdout] 8e16eed924c96d1633f760a0981e96dad5a7b155566c4fe3ebab14c733823dec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 577d671c15342e249a9b3efddf473057138a1cecf596d208afd9ecfb221c1bf8
[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" "577d671c15342e249a9b3efddf473057138a1cecf596d208afd9ecfb221c1bf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling xt v0.3.0 (/opt/rustwide/workdir)
[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: 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]    = note: `#[warn(dead_code)]` on by default
[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: 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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "577d671c15342e249a9b3efddf473057138a1cecf596d208afd9ecfb221c1bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "577d671c15342e249a9b3efddf473057138a1cecf596d208afd9ecfb221c1bf8", kill_on_drop: false }`
[INFO] [stdout] 577d671c15342e249a9b3efddf473057138a1cecf596d208afd9ecfb221c1bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7fa55235b314ca43e999c628e3525e187d3047e4398048b2a1615c064fb42de9
[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" "7fa55235b314ca43e999c628e3525e187d3047e4398048b2a1615c064fb42de9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cell1`
[INFO] [stderr]    --> src/database.rs:234:13
[INFO] [stderr]     |
[INFO] [stderr] 234 |         let cell1 = db.insert_cell(&String::from("a"));
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_cell1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tab`
[INFO] [stderr]    --> src/database.rs:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |         let tab = db.load_table(&tb);
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_tab`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `current_table`
[INFO] [stderr]   --> src/database.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn current_table(&self) -> Option<&Table> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dbl_vec_area`
[INFO] [stderr]   --> src/database.rs:99:8
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn dbl_vec_area(dblvec: &[Vec<String>]) -> Pos {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_widths`
[INFO] [stderr]    --> src/database.rs:211:12
[INFO] [stderr]     |
[INFO] [stderr] 211 |     pub fn from_widths(widths: Vec<usize>) -> Vec<Column> {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `xt` (bin "xt" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xt-26d8fca90fbc8255)
[INFO] [stdout] running 24 tests
[INFO] [stdout] test area::test::test_area_col_cnt ... ok
[INFO] [stdout] test area::test::test_area_row_cnt ... ok
[INFO] [stdout] test area::test::test_area_row_rng ... ok
[INFO] [stdout] test area::test::test_area_col_rng ... ok
[INFO] [stdout] test area::test::test_area_size ... ok
[INFO] [stdout] test database::column_tests::test_column ... ok
[INFO] [stdout] test database::column_tests::test_tb_add_row ... ok
[INFO] [stdout] test database::test::test_database_rev_col_lookup ... ok
[INFO] [stdout] test database::test::test_new ... ok
[INFO] [stdout] test sutoa::test::test_sutoa_get ... ok
[INFO] [stdout] test sutoa::test::test_sutoa_with_columns_instead_of_strings ... ok
[INFO] [stdout] test area::test::test_new_area ... ok
[INFO] [stdout] test database::test::test_database_insert_col ... ok
[INFO] [stdout] test database::table_builder_tests::test_tb_add_row ... ok
[INFO] [stdout] test database::table_builder_tests::test_tb_new ... ok
[INFO] [stdout] test database::test::test_database_insert_cell ... ok
[INFO] [stdout] test database::test::test_database_load_table ... ok
[INFO] [stdout] test database::test::test_database_rev_cell_lookup ... ok
[INFO] [stdout] test database::test::test_database_insert_cell_no_dupes ... ok
[INFO] [stdout] test csv_loader::test::test_csvloader_from_path ... ok
[INFO] [stdout] test sutoa::test::test_sutoa_get_key ... ok
[INFO] [stdout] test sutoa::test::test_sutoa_len ... ok
[INFO] [stdout] test sutoa::test::test_sutoa_new ... ok
[INFO] [stdout] test sutoa::test::test_sutoa_set ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7fa55235b314ca43e999c628e3525e187d3047e4398048b2a1615c064fb42de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa55235b314ca43e999c628e3525e187d3047e4398048b2a1615c064fb42de9", kill_on_drop: false }`
[INFO] [stdout] 7fa55235b314ca43e999c628e3525e187d3047e4398048b2a1615c064fb42de9