[INFO] cloning repository https://github.com/wistrandj/rust-zk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wistrandj/rust-zk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwistrandj%2Frust-zk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwistrandj%2Frust-zk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abb67ccd12870159be2aab35e8aeab2f88933174
[INFO] testing wistrandj/rust-zk against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwistrandj%2Frust-zk" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wistrandj/rust-zk on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wistrandj/rust-zk
[INFO] finished tweaking git repo https://github.com/wistrandj/rust-zk
[INFO] tweaked toml for git repo https://github.com/wistrandj/rust-zk written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/wistrandj/rust-zk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 311e07598d85e201bdbd6ab5d0dd28549aa4a7324904d04ec7b1affbc4311251
[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" "311e07598d85e201bdbd6ab5d0dd28549aa4a7324904d04ec7b1affbc4311251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "311e07598d85e201bdbd6ab5d0dd28549aa4a7324904d04ec7b1affbc4311251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "311e07598d85e201bdbd6ab5d0dd28549aa4a7324904d04ec7b1affbc4311251", kill_on_drop: false }`
[INFO] [stdout] 311e07598d85e201bdbd6ab5d0dd28549aa4a7324904d04ec7b1affbc4311251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 446596e2d049b0400e18266805647ad6923b79f00a6919de20918826d1bc0121
[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" "446596e2d049b0400e18266805647ad6923b79f00a6919de20918826d1bc0121", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling ahash v0.4.6
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling libsqlite3-sys v0.20.1
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling hashlink v0.6.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rusqlite v0.24.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rust-zk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `params`
[INFO] [stdout]  --> src/control/content.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rusqlite::{Connection, params};
[INFO] [stdout]   |                            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/control/content.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]   --> src/control/content.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::card::Face`
[INFO] [stdout]  --> src/model/blob.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::card::Face;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `conn`
[INFO] [stdout]   --> src/control/content.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn all_timeline_cards(conn: &Connection) -> Vec<Meta> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_conn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `folder`
[INFO] [stdout]   --> src/control/content.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn all_open_cards(folder: &Path) -> Vec<Meta> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_folder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/control/content.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn timestamp_of_file(file: &Path) -> Timestamp {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/model/carddb.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 |     if let Err(msg) = success {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/card/meta.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn eq(&self, other: &Timestamp) -> bool {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/card/meta.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn partial_cmp(&self, other: &Timestamp) -> Option<Ordering> {
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]  --> src/feature.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn enable_feature(name: &str, conn: &mut Connection, feature: &dyn Feature) {
[INFO] [stdout]   |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/feature.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn has_feature_table(name: &str, conn: &Connection) -> bool {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/feature.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn has(name: &str, conn: &Connection) -> bool {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `set`
[INFO] [stdout]   --> src/hash.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let set = b"0123456789abcdef";
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hi`
[INFO] [stdout]   --> src/hash.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_hi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lo`
[INFO] [stdout]   --> src/hash.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stdout]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_lo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]   --> src/hash.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn from_str(slice: &str) -> Hash {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_timeline_cards`
[INFO] [stdout]   --> src/control/content.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn all_timeline_cards(conn: &Connection) -> Vec<Meta> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_open_cards`
[INFO] [stdout]   --> src/control/content.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn all_open_cards(folder: &Path) -> Vec<Meta> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `timestamp_of_file`
[INFO] [stdout]   --> src/control/content.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn timestamp_of_file(file: &Path) -> Timestamp {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modified_open_cards`
[INFO] [stdout]   --> src/control/content.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn modified_open_cards(folder: &Path, conn: &Connection) -> Vec<Meta> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load`
[INFO] [stdout]   --> src/model/blob.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn load(conn: &Connection, sha256: hash::Hash) -> Option<Vec<u8>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cards`
[INFO] [stdout]  --> src/model/carddb.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn cards(conn: &mut Connection) -> Vec<Face> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `next_major_card`
[INFO] [stdout]   --> src/model/cardfolder.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn next_major_card(folder: &PathBuf) -> Face {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `list_cards`
[INFO] [stdout]   --> src/model/cardfolder.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn list_cards(path: &Path) -> Vec<Face> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_major`
[INFO] [stdout]    --> src/card/face.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn is_major(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `has`
[INFO] [stdout]   --> src/feature.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn has(name: &str, conn: &Connection) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_text`
[INFO] [stdout]   --> src/hash.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn from_text(slice: &str) -> Hash {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/hash.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn from_str(slice: &str) -> Hash {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hexcharvalue`
[INFO] [stdout]   --> src/hash.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hexslice`
[INFO] [stdout]    --> src/hash.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn hexslice(slice: &str) -> [u8; Sha256_size] {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Sha256_size` should have an upper case name
[INFO] [stdout]  --> src/hash.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const Sha256_size: usize = 32;
[INFO] [stdout]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `SHA256_SIZE`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.00s
[INFO] running `Command { std: "docker" "inspect" "446596e2d049b0400e18266805647ad6923b79f00a6919de20918826d1bc0121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446596e2d049b0400e18266805647ad6923b79f00a6919de20918826d1bc0121", kill_on_drop: false }`
[INFO] [stdout] 446596e2d049b0400e18266805647ad6923b79f00a6919de20918826d1bc0121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] e119951ee57e283e51d13b7758066beab2a01e8f4a9201555f3ca9b6dab32c36
[INFO] running `Command { std: "docker" "start" "-a" "e119951ee57e283e51d13b7758066beab2a01e8f4a9201555f3ca9b6dab32c36", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-zk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `params`
[INFO] [stdout]  --> src/control/content.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rusqlite::{Connection, params};
[INFO] [stdout]   |                            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/control/content.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]   --> src/control/content.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::card::Face`
[INFO] [stdout]  --> src/model/blob.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::card::Face;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `conn`
[INFO] [stdout]   --> src/control/content.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn all_timeline_cards(conn: &Connection) -> Vec<Meta> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_conn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `folder`
[INFO] [stdout]   --> src/control/content.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn all_open_cards(folder: &Path) -> Vec<Meta> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_folder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/control/content.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn timestamp_of_file(file: &Path) -> Timestamp {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/model/carddb.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 |     if let Err(msg) = success {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/card/meta.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn eq(&self, other: &Timestamp) -> bool {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/card/meta.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn partial_cmp(&self, other: &Timestamp) -> Option<Ordering> {
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]  --> src/feature.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn enable_feature(name: &str, conn: &mut Connection, feature: &dyn Feature) {
[INFO] [stdout]   |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/feature.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn has_feature_table(name: &str, conn: &Connection) -> bool {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/feature.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn has(name: &str, conn: &Connection) -> bool {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `set`
[INFO] [stdout]   --> src/hash.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let set = b"0123456789abcdef";
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hi`
[INFO] [stdout]   --> src/hash.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_hi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lo`
[INFO] [stdout]   --> src/hash.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stdout]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_lo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]   --> src/hash.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn from_str(slice: &str) -> Hash {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/varg.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let mut a1: Vec<String> = vec![];
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/varg.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let mut a2: Vec<String> = vec!["--timeline"].iter().map(|s| s.to_string()).collect();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/varg.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut a3: Vec<String> = vec!["./timeline.db"].iter().map(|s| s.to_string()).collect();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/varg.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let mut a4: Vec<String> = vec!["first", "--timeline"].iter().map(|s| s.to_string()).collect();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_timeline_cards`
[INFO] [stdout]   --> src/control/content.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn all_timeline_cards(conn: &Connection) -> Vec<Meta> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all_open_cards`
[INFO] [stdout]   --> src/control/content.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn all_open_cards(folder: &Path) -> Vec<Meta> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `timestamp_of_file`
[INFO] [stdout]   --> src/control/content.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn timestamp_of_file(file: &Path) -> Timestamp {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modified_open_cards`
[INFO] [stdout]   --> src/control/content.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn modified_open_cards(folder: &Path, conn: &Connection) -> Vec<Meta> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load`
[INFO] [stdout]   --> src/model/blob.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn load(conn: &Connection, sha256: hash::Hash) -> Option<Vec<u8>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cards`
[INFO] [stdout]  --> src/model/carddb.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn cards(conn: &mut Connection) -> Vec<Face> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `next_major_card`
[INFO] [stdout]   --> src/model/cardfolder.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn next_major_card(folder: &PathBuf) -> Face {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `list_cards`
[INFO] [stdout]   --> src/model/cardfolder.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn list_cards(path: &Path) -> Vec<Face> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_major`
[INFO] [stdout]    --> src/card/face.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn is_major(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `has`
[INFO] [stdout]   --> src/feature.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn has(name: &str, conn: &Connection) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_text`
[INFO] [stdout]   --> src/hash.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn from_text(slice: &str) -> Hash {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/hash.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn from_str(slice: &str) -> Hash {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hexcharvalue`
[INFO] [stdout]   --> src/hash.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hexslice`
[INFO] [stdout]    --> src/hash.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn hexslice(slice: &str) -> [u8; Sha256_size] {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Sha256_size` should have an upper case name
[INFO] [stdout]  --> src/hash.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const Sha256_size: usize = 32;
[INFO] [stdout]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `SHA256_SIZE`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "e119951ee57e283e51d13b7758066beab2a01e8f4a9201555f3ca9b6dab32c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e119951ee57e283e51d13b7758066beab2a01e8f4a9201555f3ca9b6dab32c36", kill_on_drop: false }`
[INFO] [stdout] e119951ee57e283e51d13b7758066beab2a01e8f4a9201555f3ca9b6dab32c36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 108c55392d8487070cde78490bd6396d1e6b15f280e182b769d992b00bb330c9
[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" "108c55392d8487070cde78490bd6396d1e6b15f280e182b769d992b00bb330c9", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `params`
[INFO] [stderr]  --> src/control/content.rs:4:28
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rusqlite::{Connection, params};
[INFO] [stderr]   |                            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/control/content.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hash`
[INFO] [stderr]   --> src/control/content.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::hash;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::card::Face`
[INFO] [stderr]  --> src/model/blob.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::card::Face;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `conn`
[INFO] [stderr]   --> src/control/content.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn all_timeline_cards(conn: &Connection) -> Vec<Meta> {
[INFO] [stderr]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_conn`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `folder`
[INFO] [stderr]   --> src/control/content.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn all_open_cards(folder: &Path) -> Vec<Meta> {
[INFO] [stderr]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_folder`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/control/content.rs:20:22
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn timestamp_of_file(file: &Path) -> Timestamp {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/model/carddb.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |     if let Err(msg) = success {
[INFO] [stderr]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]   --> src/card/meta.rs:26:18
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn eq(&self, other: &Timestamp) -> bool {
[INFO] [stderr]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]   --> src/card/meta.rs:35:27
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn partial_cmp(&self, other: &Timestamp) -> Option<Ordering> {
[INFO] [stderr]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/feature.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn enable_feature(name: &str, conn: &mut Connection, feature: &dyn Feature) {
[INFO] [stderr]   |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/feature.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn has_feature_table(name: &str, conn: &Connection) -> bool {
[INFO] [stderr]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/feature.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn has(name: &str, conn: &Connection) -> bool {
[INFO] [stderr]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `set`
[INFO] [stderr]   --> src/hash.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let set = b"0123456789abcdef";
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_set`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hi`
[INFO] [stderr]   --> src/hash.rs:90:17
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stderr]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_hi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lo`
[INFO] [stderr]   --> src/hash.rs:90:25
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stderr]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_lo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `slice`
[INFO] [stderr]   --> src/hash.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn from_str(slice: &str) -> Hash {
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/varg.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let mut a1: Vec<String> = vec![];
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/varg.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let mut a2: Vec<String> = vec!["--timeline"].iter().map(|s| s.to_string()).collect();
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/varg.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let mut a3: Vec<String> = vec!["./timeline.db"].iter().map(|s| s.to_string()).collect();
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/varg.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let mut a4: Vec<String> = vec!["first", "--timeline"].iter().map(|s| s.to_string()).collect();
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `all_timeline_cards`
[INFO] [stderr]   --> src/control/content.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn all_timeline_cards(conn: &Connection) -> Vec<Meta> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `all_open_cards`
[INFO] [stderr]   --> src/control/content.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn all_open_cards(folder: &Path) -> Vec<Meta> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `timestamp_of_file`
[INFO] [stderr]   --> src/control/content.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn timestamp_of_file(file: &Path) -> Timestamp {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `modified_open_cards`
[INFO] [stderr]   --> src/control/content.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn modified_open_cards(folder: &Path, conn: &Connection) -> Vec<Meta> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load`
[INFO] [stderr]   --> src/model/blob.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn load(conn: &Connection, sha256: hash::Hash) -> Option<Vec<u8>> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cards`
[INFO] [stderr]  --> src/model/carddb.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn cards(conn: &mut Connection) -> Vec<Face> {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `next_major_card`
[INFO] [stderr]   --> src/model/cardfolder.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn next_major_card(folder: &PathBuf) -> Face {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `list_cards`
[INFO] [stderr]   --> src/model/cardfolder.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn list_cards(path: &Path) -> Vec<Face> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_major`
[INFO] [stderr]    --> src/card/face.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn is_major(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `has`
[INFO] [stderr]   --> src/feature.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn has(name: &str, conn: &Connection) -> bool {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_text`
[INFO] [stderr]   --> src/hash.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn from_text(slice: &str) -> Hash {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_str`
[INFO] [stderr]   --> src/hash.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn from_str(slice: &str) -> Hash {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hexcharvalue`
[INFO] [stderr]   --> src/hash.rs:90:4
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn hexcharvalue(hi: u8, lo: u8) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hexslice`
[INFO] [stderr]    --> src/hash.rs:106:4
[INFO] [stderr]     |
[INFO] [stderr] 106 | fn hexslice(slice: &str) -> [u8; Sha256_size] {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Sha256_size` should have an upper case name
[INFO] [stderr]  --> src/hash.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const Sha256_size: usize = 32;
[INFO] [stderr]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `SHA256_SIZE`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zk-0da7d14194f2040d
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test card::face::test::test_negative ... ok
[INFO] [stdout] test varg::test::test_positive1 ... ok
[INFO] [stdout] test card::face::test::test_create ... ok
[INFO] [stdout] test card::face::test::test_number ... ok
[INFO] [stdout] test varg::test::test_negative ... ok
[INFO] [stdout] test varg::test1::test_no_timeline ... ok
[INFO] [stdout] test varg::test1::test_argument_read ... ok
[INFO] [stdout] test card::face::test::test_location_in ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- card::face::test::test_location_in stdout ----
[INFO] [stdout] thread 'card::face::test::test_location_in' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `"./foo/bar/123a"`,
[INFO] [stdout]  right: `"./foo/bar/124a"`', src/card/face.rs:230:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55facef73310 - std::backtrace_rs::backtrace::libunwind::trace::h04d12fdcddff82aa
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
[INFO] [stdout]    1:     0x55facef73310 - std::backtrace_rs::backtrace::trace_unsynchronized::h1459b974b6fbe5e1
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55facef73310 - std::sys_common::backtrace::_print_fmt::h9b8396a669123d95
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55facef73310 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he009dcaaa75eed60
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55facef963fc - core::fmt::write::h77b4746b0dea1dd3
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/fmt/mod.rs:1078:17
[INFO] [stdout]    5:     0x55facef14be6 - std::io::Write::write_fmt::h3a40d9c04f88bb58
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/io/mod.rs:1518:15
[INFO] [stdout]    6:     0x55facef6d56d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h1b3d263673641f53
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/io/impls.rs:179:9
[INFO] [stdout]    7:     0x55facef759e5 - std::sys_common::backtrace::_print::h2d880c9e69a21be9
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    8:     0x55facef759e5 - std::sys_common::backtrace::print::h5f02b1bb49f36879
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    9:     0x55facef759e5 - std::panicking::default_hook::{{closure}}::h658e288a7a809b29
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:208:50
[INFO] [stdout]   10:     0x55facef75632 - std::panicking::default_hook::hb52d73f0da9a4bb8
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:224:9
[INFO] [stdout]   11:     0x55facef76181 - std::panicking::rust_panic_with_hook::hfe7e1c684e3e6462
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:593:17
[INFO] [stdout]   12:     0x55facef75cc7 - std::panicking::begin_panic_handler::{{closure}}::h42939e004b32765c
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:499:13
[INFO] [stdout]   13:     0x55facef737cc - std::sys_common::backtrace::__rust_end_short_backtrace::h9d2070f7bf9fd56c
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   14:     0x55facef75c29 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:495:5
[INFO] [stdout]   15:     0x55facef75bdb - std::panicking::begin_panic_fmt::h4a7e15187eac098d
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:437:5
[INFO] [stdout]   16:     0x55facef0fa08 - zk::card::face::test::test_location_in::h217c9434a2a96b6f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/card/face.rs:230:9
[INFO] [stdout]   17:     0x55facef0f79a - zk::card::face::test::test_location_in::{{closure}}::hfa6799d6189da187
[INFO] [stdout]                                at /opt/rustwide/workdir/src/card/face.rs:227:5
[INFO] [stdout]   18:     0x55facef0554e - core::ops::function::FnOnce::call_once::hd64e4220ee0e42bc
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   19:     0x55facef3c733 - core::ops::function::FnOnce::call_once::hdbd2235b6243db3d
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x55facef3c733 - test::__rust_begin_short_backtrace::hb1dea1c208110812
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/test/src/lib.rs:517:5
[INFO] [stdout]   21:     0x55facef3abda - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d11a40efef721f2
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/alloc/src/boxed.rs:1307:9
[INFO] [stdout]   22:     0x55facef3abda - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h23961df98af0bc5a
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:322:9
[INFO] [stdout]   23:     0x55facef3abda - std::panicking::try::do_call::h6390646e3de3fb9e
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:381:40
[INFO] [stdout]   24:     0x55facef3abda - std::panicking::try::hc531439ab6159192
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:345:19
[INFO] [stdout]   25:     0x55facef3abda - std::panic::catch_unwind::h859d8bdaf9b4855c
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:396:14
[INFO] [stdout]   26:     0x55facef3abda - test::run_test_in_process::hae60aa74417e3abc
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/test/src/lib.rs:544:18
[INFO] [stdout]   27:     0x55facef3abda - test::run_test::run_test_inner::{{closure}}::hf48c86652c4a151d
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/test/src/lib.rs:450:39
[INFO] [stdout]   28:     0x55facef13f66 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb82b392232b8bd1f
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   29:     0x55facef18f63 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h79ca9e9abe157956
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/thread/mod.rs:474:17
[INFO] [stdout]   30:     0x55facef18f63 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha12f1f228780a4f7
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:322:9
[INFO] [stdout]   31:     0x55facef18f63 - std::panicking::try::do_call::h722bb7416d021cdc
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:381:40
[INFO] [stdout]   32:     0x55facef18f63 - std::panicking::try::h78e5abca71ac7cac
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:345:19
[INFO] [stdout]   33:     0x55facef18f63 - std::panic::catch_unwind::h95162588bd0fa090
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:396:14
[INFO] [stdout]   34:     0x55facef18f63 - std::thread::Builder::spawn_unchecked::{{closure}}::h64da5c4b9acc58dc
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/thread/mod.rs:473:30
[INFO] [stdout]   35:     0x55facef18f63 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7a8c588ad0b69edb
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   36:     0x55facef7c5aa - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h09ff301006f1aeca
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/alloc/src/boxed.rs:1307:9
[INFO] [stdout]   37:     0x55facef7c5aa - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he79488c8f00b5f31
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/alloc/src/boxed.rs:1307:9
[INFO] [stdout]   38:     0x55facef7c5aa - std::sys::unix::thread::Thread::new::thread_start::h587efff279c68ba7
[INFO] [stdout]                                at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   39:     0x7ff67ae4e609 - start_thread
[INFO] [stdout]   40:     0x7ff67ac1e293 - clone
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     card::face::test::test_location_in
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin zk'
[INFO] running `Command { std: "docker" "inspect" "108c55392d8487070cde78490bd6396d1e6b15f280e182b769d992b00bb330c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "108c55392d8487070cde78490bd6396d1e6b15f280e182b769d992b00bb330c9", kill_on_drop: false }`
[INFO] [stdout] 108c55392d8487070cde78490bd6396d1e6b15f280e182b769d992b00bb330c9