[INFO] cloning repository https://github.com/rishi-org-stack/redis-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rishi-org-stack/redis-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frishi-org-stack%2Fredis-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frishi-org-stack%2Fredis-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24fd3f098c894ca5dee4d7bdcc677b0146b8d7e5
[INFO] checking rishi-org-stack/redis-client against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frishi-org-stack%2Fredis-client" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rishi-org-stack/redis-client on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rishi-org-stack/redis-client
[INFO] finished tweaking git repo https://github.com/rishi-org-stack/redis-client
[INFO] tweaked toml for git repo https://github.com/rishi-org-stack/redis-client written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rishi-org-stack/redis-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dbf175b0bf1ede239309553288579545960674d8b6eaf691f805d29f92d61bc
[INFO] running `Command { std: "docker" "start" "-a" "7dbf175b0bf1ede239309553288579545960674d8b6eaf691f805d29f92d61bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dbf175b0bf1ede239309553288579545960674d8b6eaf691f805d29f92d61bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dbf175b0bf1ede239309553288579545960674d8b6eaf691f805d29f92d61bc", kill_on_drop: false }`
[INFO] [stdout] 7dbf175b0bf1ede239309553288579545960674d8b6eaf691f805d29f92d61bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33af90d26921aa958321b35b1991219a74419cea925de21fb264e7f4df2bf2dd
[INFO] running `Command { std: "docker" "start" "-a" "33af90d26921aa958321b35b1991219a74419cea925de21fb264e7f4df2bf2dd", kill_on_drop: false }`
[INFO] [stderr]     Checking rclient v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/types/data_types.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 |             Err(e) => return Err(ErrType::InvalidEncodeStr(Err::new("size is not parseable"))),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RString` is never constructed
[INFO] [stdout]   --> src/types/data_types.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct RString {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RString` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]   --> src/types/data_types.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl RString {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 41 |     pub fn from_str(encoded_str: &str, bulk: bool) -> Result<RString, ErrType> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RInteger` is never constructed
[INFO] [stdout]    --> src/types/data_types.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct RInteger {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RInteger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/types/data_types.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl RInteger {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] 110 |     pub fn from_str(encoded_str: &str) -> Result<RInteger, ErrType> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RNull` is never constructed
[INFO] [stdout]    --> src/types/data_types.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 | struct RNull {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/types/data_types.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl RNull {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 125 |     pub fn from_str() -> Result<RNull, ()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RBool` is never constructed
[INFO] [stdout]    --> src/types/data_types.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 | struct RBool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/types/data_types.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 134 | impl RBool {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 135 |     pub fn from_str(encoded_str: &str) -> Result<RBool, ErrType> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `INFINITY` is never used
[INFO] [stdout]    --> src/types/data_types.rs:153:6
[INFO] [stdout]     |
[INFO] [stdout] 153 | enum INFINITY {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `INFINITY` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RDouble` is never constructed
[INFO] [stdout]    --> src/types/data_types.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct RDouble {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/types/data_types.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 166 | impl RDouble {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 167 |     pub fn from_str(encoded_str: &str) -> Result<RDouble, ErrType> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RArray` is never constructed
[INFO] [stdout]    --> src/types/data_types.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 207 | struct RArray {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/types/data_types.rs:213:12
[INFO] [stdout]     |
[INFO] [stdout] 212 | impl RArray {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] 213 |     pub fn from_str(command: &str) -> Result<RArray, ErrType> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Types` is never used
[INFO] [stdout]    --> src/types/data_types.rs:264:6
[INFO] [stdout]     |
[INFO] [stdout] 264 | enum Types {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/types/data_types.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 273 | impl Types {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 274 |     fn from_str(command: &str) -> Result<Types, ErrType> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/types/data_types.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 |             Err(e) => return Err(ErrType::InvalidEncodeStr(Err::new("size is not parseable"))),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]    --> src/types/data_types.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | struct RNull {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 121 |     data: Option<()>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/types/data_types.rs:267:10
[INFO] [stdout]     |
[INFO] [stdout] 267 |     Null(RNull),
[INFO] [stdout]     |     ---- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 267 -     Null(RNull),
[INFO] [stdout] 267 +     Null(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/types/data_types.rs:270:11
[INFO] [stdout]     |
[INFO] [stdout] 270 |     Array(RArray),
[INFO] [stdout]     |     ----- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 270 -     Array(RArray),
[INFO] [stdout] 270 +     Array(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/types/data_types.rs:425:36
[INFO] [stdout]     |
[INFO] [stdout] 425 |                     Types::Integer(I) => (true, I.data),
[INFO] [stdout]     |                                    ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/types/data_types.rs:450:36
[INFO] [stdout]     |
[INFO] [stdout] 450 |                     Types::Integer(I) => (true, I.data),
[INFO] [stdout]     |                                    ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/types/data_types.rs:475:36
[INFO] [stdout]     |
[INFO] [stdout] 475 |                     Types::Integer(I) => (true, I.data),
[INFO] [stdout]     |                                    ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "33af90d26921aa958321b35b1991219a74419cea925de21fb264e7f4df2bf2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33af90d26921aa958321b35b1991219a74419cea925de21fb264e7f4df2bf2dd", kill_on_drop: false }`
[INFO] [stdout] 33af90d26921aa958321b35b1991219a74419cea925de21fb264e7f4df2bf2dd