[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 try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBabyMelvin%2Fmini-redis" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BabyMelvin/mini-redis on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8408f5f282f2520bf769db79a7a3a5b7f4ceebcb0cda1bba02a2bb569d86bd3b
[INFO] running `Command { std: "docker" "start" "-a" "8408f5f282f2520bf769db79a7a3a5b7f4ceebcb0cda1bba02a2bb569d86bd3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8408f5f282f2520bf769db79a7a3a5b7f4ceebcb0cda1bba02a2bb569d86bd3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8408f5f282f2520bf769db79a7a3a5b7f4ceebcb0cda1bba02a2bb569d86bd3b", kill_on_drop: false }`
[INFO] [stdout] 8408f5f282f2520bf769db79a7a3a5b7f4ceebcb0cda1bba02a2bb569d86bd3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93ebce8b3ab47bd783029ed016ce063179bda6a8a92c9ad060676f027af77815
[INFO] running `Command { std: "docker" "start" "-a" "93ebce8b3ab47bd783029ed016ce063179bda6a8a92c9ad060676f027af77815", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling tokio v1.20.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
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[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.11
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking pin-project v1.0.11
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking my-redis v0.1.0 (/opt/rustwide/workdir)
[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)]` (part of `#[warn(unused)]`) 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[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] For more information about this error, try `rustc --explain E0601`.
[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] 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)]` (part of `#[warn(unused)]`) 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] 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)]` (part of `#[warn(unused)]`) 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] note: requirement that the value outlives `'static` introduced here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.20.0/src/task/spawn.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 |         T: Future + Send + 'static,
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) 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] 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)]` (part of `#[warn(unused)]`) on by default
[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] note: requirement that the value outlives `'static` introduced here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.20.0/src/task/spawn.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 |         T: Future + Send + 'static,
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) 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] [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") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] error: could not compile `my-redis` (bin "my-redis" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "93ebce8b3ab47bd783029ed016ce063179bda6a8a92c9ad060676f027af77815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ebce8b3ab47bd783029ed016ce063179bda6a8a92c9ad060676f027af77815", kill_on_drop: false }`
[INFO] [stdout] 93ebce8b3ab47bd783029ed016ce063179bda6a8a92c9ad060676f027af77815
