[INFO] cloning repository https://github.com/Animels/mini-redis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Animels/mini-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimels%2Fmini-redis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimels%2Fmini-redis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14f224125ef4572ee529f17debda1de8ddc82201
[INFO] checking Animels/mini-redis against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimels%2Fmini-redis" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Animels/mini-redis
[INFO] finished tweaking git repo https://github.com/Animels/mini-redis
[INFO] tweaked toml for git repo https://github.com/Animels/mini-redis written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Animels/mini-redis on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Animels/mini-redis 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3602a8b4268e31fea01c1eb6dc99c29e0522a3b50e29a965e2a65b493d46c33b
[INFO] running `Command { std: "docker" "start" "-a" "3602a8b4268e31fea01c1eb6dc99c29e0522a3b50e29a965e2a65b493d46c33b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3602a8b4268e31fea01c1eb6dc99c29e0522a3b50e29a965e2a65b493d46c33b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3602a8b4268e31fea01c1eb6dc99c29e0522a3b50e29a965e2a65b493d46c33b", kill_on_drop: false }`
[INFO] [stdout] 3602a8b4268e31fea01c1eb6dc99c29e0522a3b50e29a965e2a65b493d46c33b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 041fe6a34926f41b3d6faf7ccd76c86c2daac167da9ab486409daa42be6df9af
[INFO] running `Command { std: "docker" "start" "-a" "041fe6a34926f41b3d6faf7ccd76c86c2daac167da9ab486409daa42be6df9af", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling anyhow v1.0.59
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking lock_api v0.4.9
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking thiserror v1.0.32
[INFO] [stderr]     Checking redis-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prev_value`
[INFO] [stdout]    --> src/main.rs:339:22
[INFO] [stdout]     |
[INFO] [stdout] 339 |                 Some(prev_value) => {
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:114:31
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 config.port = args[index + 1].as_str().parse().unwrap();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |                 config.host = args[index + 1].as_str().parse().unwrap();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:185:23
[INFO] [stdout]     |
[INFO] [stdout] 185 |         actual_host = "127.0.0.1".parse().unwrap();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redis-starter-rust` (bin "redis-starter-rust") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `prev_value`
[INFO] [stdout]    --> src/main.rs:339:22
[INFO] [stdout]     |
[INFO] [stdout] 339 |                 Some(prev_value) => {
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:114:31
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 config.port = args[index + 1].as_str().parse().unwrap();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |                 config.host = args[index + 1].as_str().parse().unwrap();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:185:23
[INFO] [stdout]     |
[INFO] [stdout] 185 |         actual_host = "127.0.0.1".parse().unwrap();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redis-starter-rust` (bin "redis-starter-rust" test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "041fe6a34926f41b3d6faf7ccd76c86c2daac167da9ab486409daa42be6df9af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "041fe6a34926f41b3d6faf7ccd76c86c2daac167da9ab486409daa42be6df9af", kill_on_drop: false }`
[INFO] [stdout] 041fe6a34926f41b3d6faf7ccd76c86c2daac167da9ab486409daa42be6df9af