[INFO] cloning repository https://github.com/TonyHsieh/rustack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TonyHsieh/rustack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyHsieh%2Frustack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyHsieh%2Frustack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2a0fffbb31341381b0cdf9e16ea5e3d67b3ddc3
[INFO] checking TonyHsieh/rustack against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyHsieh%2Frustack" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TonyHsieh/rustack on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TonyHsieh/rustack
[INFO] finished tweaking git repo https://github.com/TonyHsieh/rustack
[INFO] tweaked toml for git repo https://github.com/TonyHsieh/rustack written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/TonyHsieh/rustack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.2
[INFO] [stderr]   Downloaded fallible-streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded rusqlite v0.21.0
[INFO] [stderr]   Downloaded syn v1.0.14
[INFO] [stderr]   Downloaded libsqlite3-sys v0.17.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dedbfaa791fe1448409694114851b68f80303d7cdd873e008910eb3fec51ded4
[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" "dedbfaa791fe1448409694114851b68f80303d7cdd873e008910eb3fec51ded4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dedbfaa791fe1448409694114851b68f80303d7cdd873e008910eb3fec51ded4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dedbfaa791fe1448409694114851b68f80303d7cdd873e008910eb3fec51ded4", kill_on_drop: false }`
[INFO] [stdout] dedbfaa791fe1448409694114851b68f80303d7cdd873e008910eb3fec51ded4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8b3ea10b00ae79dffbb3a65b75df17d927fa0ba33bde469fbd1f12f90a5f6d0
[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" "b8b3ea10b00ae79dffbb3a65b75df17d927fa0ba33bde469fbd1f12f90a5f6d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]     Checking rustack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> main.rs:70:90
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn stack_pop(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<(String)>{
[INFO] [stdout]    |                                                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> main.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 | /   /**
[INFO] [stdout] 75 | |   let pop_data:String = connect.query_row_and_then(
[INFO] [stdout] 76 | |       "SELECT stackname, data, MAX(rowid) FROM storage WHERE stackname='?';",
[INFO] [stdout] 77 | |       params![dataMap["stackname"]],
[INFO] [stdout] 78 | |       |row| row.get(0),
[INFO] [stdout] 79 | |   ).unwrap();
[INFO] [stdout] 80 | |   **/
[INFO] [stdout]    | |_____^
[INFO] [stdout] 81 | 
[INFO] [stdout] 82 | /   let pop_data:Result< String > = connect.query_row_and_then(
[INFO] [stdout] 83 | |       "SELECT data, MAX(rowid) FROM storage WHERE stackname= ?1;",
[INFO] [stdout] 84 | |       params![dataMap["stackname"]],
[INFO] [stdout] 85 | |       |row| row.get(0),
[INFO] [stdout] 86 | |   );
[INFO] [stdout]    | |____- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> main.rs:184:3
[INFO] [stdout]     |
[INFO] [stdout] 184 | /   /**
[INFO] [stdout] 185 | |   let raw_string = first_json_bracket(&format!("{}", String::from_utf8_lossy(&buffer[..]).to_string()));
[INFO] [stdout] 186 | |   attempt_json_parse(raw_string.to_string());
[INFO] [stdout] 187 | |   **/
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     let get = b"GET";
[INFO] [stdout]     |     ----------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> main.rs:70:90
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn stack_pop(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<(String)>{
[INFO] [stdout]    |                                                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> main.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 | /   /**
[INFO] [stdout] 75 | |   let pop_data:String = connect.query_row_and_then(
[INFO] [stdout] 76 | |       "SELECT stackname, data, MAX(rowid) FROM storage WHERE stackname='?';",
[INFO] [stdout] 77 | |       params![dataMap["stackname"]],
[INFO] [stdout] 78 | |       |row| row.get(0),
[INFO] [stdout] 79 | |   ).unwrap();
[INFO] [stdout] 80 | |   **/
[INFO] [stdout]    | |_____^
[INFO] [stdout] 81 | 
[INFO] [stdout] 82 | /   let pop_data:Result< String > = connect.query_row_and_then(
[INFO] [stdout] 83 | |       "SELECT data, MAX(rowid) FROM storage WHERE stackname= ?1;",
[INFO] [stdout] 84 | |       params![dataMap["stackname"]],
[INFO] [stdout] 85 | |       |row| row.get(0),
[INFO] [stdout] 86 | |   );
[INFO] [stdout]    | |____- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> main.rs:184:3
[INFO] [stdout]     |
[INFO] [stdout] 184 | /   /**
[INFO] [stdout] 185 | |   let raw_string = first_json_bracket(&format!("{}", String::from_utf8_lossy(&buffer[..]).to_string()));
[INFO] [stdout] 186 | |   attempt_json_parse(raw_string.to_string());
[INFO] [stdout] 187 | |   **/
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     let get = b"GET";
[INFO] [stdout]     |     ----------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     Err(error) => format!("Stack Underflow!"),
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect`
[INFO] [stdout]    --> main.rs:106:15
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dataMap`
[INFO] [stdout]    --> main.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |                                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dataMap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stack_peek`
[INFO] [stdout]    --> main.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> main.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   init_db(&conn);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dataMap` should have a snake case name
[INFO] [stdout]   --> main.rs:54:47
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn stack_push(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String> {
[INFO] [stdout]    |                                               ^^^^^^^ help: convert the identifier to snake case: `data_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dataMap` should have a snake case name
[INFO] [stdout]   --> main.rs:70:46
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn stack_pop(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<(String)>{
[INFO] [stdout]    |                                              ^^^^^^^ help: convert the identifier to snake case: `data_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dataMap` should have a snake case name
[INFO] [stdout]    --> main.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |                                               ^^^^^^^ help: convert the identifier to snake case: `data_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     Err(error) => format!("Stack Underflow!"),
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect`
[INFO] [stdout]    --> main.rs:106:15
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dataMap`
[INFO] [stdout]    --> main.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |                                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dataMap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stack_peek`
[INFO] [stdout]    --> main.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> main.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   init_db(&conn);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dataMap` should have a snake case name
[INFO] [stdout]   --> main.rs:54:47
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn stack_push(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String> {
[INFO] [stdout]    |                                               ^^^^^^^ help: convert the identifier to snake case: `data_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dataMap` should have a snake case name
[INFO] [stdout]   --> main.rs:70:46
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn stack_pop(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<(String)>{
[INFO] [stdout]    |                                              ^^^^^^^ help: convert the identifier to snake case: `data_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dataMap` should have a snake case name
[INFO] [stdout]    --> main.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn stack_peek(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<String>{
[INFO] [stdout]     |                                               ^^^^^^^ help: convert the identifier to snake case: `data_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.20s
[INFO] running `Command { std: "docker" "inspect" "b8b3ea10b00ae79dffbb3a65b75df17d927fa0ba33bde469fbd1f12f90a5f6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b3ea10b00ae79dffbb3a65b75df17d927fa0ba33bde469fbd1f12f90a5f6d0", kill_on_drop: false }`
[INFO] [stdout] b8b3ea10b00ae79dffbb3a65b75df17d927fa0ba33bde469fbd1f12f90a5f6d0
