[INFO] cloning repository https://github.com/BabyMelvin/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/BabyMelvin/mini-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabyMelvin%2Fmini-redis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabyMelvin%2Fmini-redis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47ec2afecb0406209ffd52e565ac503e7735ceb1
[INFO] checking BabyMelvin/mini-redis against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabyMelvin%2Fmini-redis" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BabyMelvin/mini-redis on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BabyMelvin/mini-redis
[INFO] finished tweaking git repo https://github.com/BabyMelvin/mini-redis
[INFO] tweaked toml for git repo https://github.com/BabyMelvin/mini-redis written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BabyMelvin/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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "99e45bc753e0532d82663d4c92c50efc6b3372614f12ddd8235cd7d85c688dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99e45bc753e0532d82663d4c92c50efc6b3372614f12ddd8235cd7d85c688dd3", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f03ce3a7b09c267d2cea145afa44e6b809348e74dd0d9576d5f7cc7e23721a92", kill_on_drop: false }`
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[INFO] [stderr]     Checking my-redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]  --> src/main.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let res = client.get("hello").await;
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/bin/server.rs:3:53
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{sync::{Arc, Mutex}, collections::HashMap, hash};
[INFO] [stdout]   |                                                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/bin/server.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use std::collections::HashMap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0373]: async block may outlive the current function, but it borrows `client`, which is owned by the current function
[INFO] [stdout]  --> src/main.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let t1 = tokio::spawn(async {
[INFO] [stdout]   |                           ^^^^^ may outlive borrowed value `client`
[INFO] [stdout] 9 |         let res = client.get("hello").await;
[INFO] [stdout]   |                   ------ `client` is borrowed here
[INFO] [stdout]   |
[INFO] [stdout]   = note: async blocks are not executed immediately and must either take a reference or ownership of outside variables they use
[INFO] [stdout] help: to force the async block to take ownership of `client` (and any other referenced variables), use the `move` keyword
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let t1 = tokio::spawn(async move {
[INFO] [stdout]   |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `client` as mutable more than once at a time
[INFO] [stdout]   --> src/main.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 8  |       let t1 = tokio::spawn(async {
[INFO] [stdout]    |                -            ----- first mutable borrow occurs here
[INFO] [stdout]    |  ______________|
[INFO] [stdout]    | |
[INFO] [stdout] 9  | |         let res = client.get("hello").await;
[INFO] [stdout]    | |                   ------ first borrow occurs due to use of `client` in coroutine
[INFO] [stdout] 10 | |     });
[INFO] [stdout]    | |______- argument requires that `client` is borrowed for `'static`
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |       let t2 = tokio::spawn(async {
[INFO] [stdout]    |                             ^^^^^ second mutable borrow occurs here
[INFO] [stdout] 13 |           client.set("foo", "bar".into()).await;
[INFO] [stdout]    |           ------ second borrow occurs due to use of `client` in coroutine
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/bin/server.rs:3:53
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{sync::{Arc, Mutex}, collections::HashMap, hash};
[INFO] [stdout]   |                                                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `client`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `src/bin/client.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/bin/server.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use std::collections::HashMap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]  --> src/main.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let res = client.get("hello").await;
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0373, E0499.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0373`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-redis` (bin "client") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0373]: async block may outlive the current function, but it borrows `client`, which is owned by the current function
[INFO] [stdout]  --> src/main.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let t1 = tokio::spawn(async {
[INFO] [stdout]   |                           ^^^^^ may outlive borrowed value `client`
[INFO] [stdout] 9 |         let res = client.get("hello").await;
[INFO] [stdout]   |                   ------ `client` is borrowed here
[INFO] [stdout]   |
[INFO] [stdout]   = note: async blocks are not executed immediately and must either take a reference or ownership of outside variables they use
[INFO] [stdout] help: to force the async block to take ownership of `client` (and any other referenced variables), use the `move` keyword
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let t1 = tokio::spawn(async move {
[INFO] [stdout]   |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `client` as mutable more than once at a time
[INFO] [stdout]   --> src/main.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 8  |       let t1 = tokio::spawn(async {
[INFO] [stdout]    |                -            ----- first mutable borrow occurs here
[INFO] [stdout]    |  ______________|
[INFO] [stdout]    | |
[INFO] [stdout] 9  | |         let res = client.get("hello").await;
[INFO] [stdout]    | |                   ------ first borrow occurs due to use of `client` in coroutine
[INFO] [stdout] 10 | |     });
[INFO] [stdout]    | |______- argument requires that `client` is borrowed for `'static`
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |       let t2 = tokio::spawn(async {
[INFO] [stdout]    |                             ^^^^^ second mutable borrow occurs here
[INFO] [stdout] 13 |           client.set("foo", "bar".into()).await;
[INFO] [stdout]    |           ------ second borrow occurs due to use of `client` in coroutine
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-redis` (bin "my-redis") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: type alias `SharedDb` is never used
[INFO] [stdout]  --> src/bin/server.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type SharedDb = Arc<Vec<Mutex<HashMap<String, Vec<u8>>>>>;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_shared_db` is never used
[INFO] [stdout]   --> src/bin/server.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn new_shared_db(num_shares: usize) -> SharedDb {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0373, E0499.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0373`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-redis` (bin "my-redis" test) due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: type alias `SharedDb` is never used
[INFO] [stdout]  --> src/bin/server.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type SharedDb = Arc<Vec<Mutex<HashMap<String, Vec<u8>>>>>;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_shared_db` is never used
[INFO] [stdout]   --> src/bin/server.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn new_shared_db(num_shares: usize) -> SharedDb {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f03ce3a7b09c267d2cea145afa44e6b809348e74dd0d9576d5f7cc7e23721a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03ce3a7b09c267d2cea145afa44e6b809348e74dd0d9576d5f7cc7e23721a92", kill_on_drop: false }`
[INFO] [stdout] f03ce3a7b09c267d2cea145afa44e6b809348e74dd0d9576d5f7cc7e23721a92
