[INFO] cloning repository https://github.com/exokernel/my-redis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/exokernel/my-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexokernel%2Fmy-redis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexokernel%2Fmy-redis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb21c8cd44cab255602bb3e4f055dceb2cffe754
[INFO] checking exokernel/my-redis against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexokernel%2Fmy-redis" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/exokernel/my-redis
[INFO] finished tweaking git repo https://github.com/exokernel/my-redis
[INFO] tweaked toml for git repo https://github.com/exokernel/my-redis written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/exokernel/my-redis on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/exokernel/my-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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcfe7670a9b97947d52e8d94e8116d392b017ea12979fe19b315b5098fa2b831
[INFO] running `Command { std: "docker" "start" "-a" "dcfe7670a9b97947d52e8d94e8116d392b017ea12979fe19b315b5098fa2b831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcfe7670a9b97947d52e8d94e8116d392b017ea12979fe19b315b5098fa2b831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfe7670a9b97947d52e8d94e8116d392b017ea12979fe19b315b5098fa2b831", kill_on_drop: false }`
[INFO] [stdout] dcfe7670a9b97947d52e8d94e8116d392b017ea12979fe19b315b5098fa2b831
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5458ca7e8bf25ea16fe98c470e508364685a015d2ac2e8b6058bb01337e4e583
[INFO] running `Command { std: "docker" "start" "-a" "5458ca7e8bf25ea16fe98c470e508364685a015d2ac2e8b6058bb01337e4e583", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[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 version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling tokio v1.20.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking matchers v0.0.1
[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 pin-project v1.0.11
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[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] error[E0432]: unresolved import `crate::frame`
[INFO] [stdout]  --> examples/connection.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::frame::{self, Frame};
[INFO] [stdout]   |            -----   ^^^^ no `frame` in the root
[INFO] [stdout]   |            |
[INFO] [stdout]   |            help: a similar name exists in the module (notice the capitalization): `Frame`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this module instead:
[INFO] [stdout]           mini_redis::frame
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Result` in the crate root
[INFO] [stdout]   --> examples/connection.rs:59:50
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub async fn read_frame(&mut self) -> crate::Result<Option<Frame>> {
[INFO] [stdout]    |                                                  ^^^^^^ not found in the crate root
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::io::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::fmt::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::result::Result;
[INFO] [stdout]    |
[INFO] [stdout]      and 5 other candidates
[INFO] [stdout] help: if you import `Result`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 59 -     pub async fn read_frame(&mut self) -> crate::Result<Option<Frame>> {
[INFO] [stdout] 59 +     pub async fn read_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Result` in the crate root
[INFO] [stdout]   --> examples/connection.rs:90:41
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn parse_frame(&mut self) -> crate::Result<Option<Frame>> {
[INFO] [stdout]    |                                         ^^^^^^ not found in the crate root
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::io::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::fmt::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::Result;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::result::Result;
[INFO] [stdout]    |
[INFO] [stdout]      and 5 other candidates
[INFO] [stdout] help: if you import `Result`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 90 -     fn parse_frame(&mut self) -> crate::Result<Option<Frame>> {
[INFO] [stdout] 90 +     fn parse_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `connection`
[INFO] [stdout]    --> examples/connection.rs:239:2
[INFO] [stdout]     |
[INFO] [stdout] 239 | }
[INFO] [stdout]     |  ^ consider adding a `main` function to `examples/connection.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-redis` (example "connection") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5458ca7e8bf25ea16fe98c470e508364685a015d2ac2e8b6058bb01337e4e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5458ca7e8bf25ea16fe98c470e508364685a015d2ac2e8b6058bb01337e4e583", kill_on_drop: false }`
[INFO] [stdout] 5458ca7e8bf25ea16fe98c470e508364685a015d2ac2e8b6058bb01337e4e583