[INFO] cloning repository https://github.com/JackeyHua-SJTU/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JackeyHua-SJTU/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackeyHua-SJTU%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackeyHua-SJTU%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a72005e46f92562c14f6f74ebb67925107ff5463
[INFO] checking JackeyHua-SJTU/kvs against master#cb40c25f6aebb637163d26bf76a680ed6e5d1eda for pr-156157-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackeyHua-SJTU%2Fkvs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JackeyHua-SJTU/kvs
[INFO] finished tweaking git repo https://github.com/JackeyHua-SJTU/kvs
[INFO] tweaked toml for git repo https://github.com/JackeyHua-SJTU/kvs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JackeyHua-SJTU/kvs on toolchain cb40c25f6aebb637163d26bf76a680ed6e5d1eda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JackeyHua-SJTU/kvs 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" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zstd v0.12.4
[INFO] [stderr]   Downloaded stack-map v1.0.5
[INFO] [stderr]   Downloaded pagetable v0.4.6
[INFO] [stderr]   Downloaded zstd-safe v6.0.6
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[INFO] [stderr]   Downloaded fault-injection v1.0.10
[INFO] [stderr]   Downloaded concurrent-map v5.0.37
[INFO] [stderr]   Downloaded sled v1.0.0-alpha.124
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[INFO] [stderr]   Downloaded assert_cmd v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59c33e4581233105aca80dcf0d5665249dfac43bc9bafce97dd33a5d30a4b625
[INFO] running `Command { std: "docker" "start" "-a" "59c33e4581233105aca80dcf0d5665249dfac43bc9bafce97dd33a5d30a4b625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59c33e4581233105aca80dcf0d5665249dfac43bc9bafce97dd33a5d30a4b625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c33e4581233105aca80dcf0d5665249dfac43bc9bafce97dd33a5d30a4b625", kill_on_drop: false }`
[INFO] [stdout] 59c33e4581233105aca80dcf0d5665249dfac43bc9bafce97dd33a5d30a4b625
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac6bd37d4819479a0c64cede94f73847d2da62892159b35cc01496b41abb27a9
[INFO] running `Command { std: "docker" "start" "-a" "ac6bd37d4819479a0c64cede94f73847d2da62892159b35cc01496b41abb27a9", kill_on_drop: false }`
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[INFO] [stderr]     Checking kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `get` has an incompatible type for trait
[INFO] [stdout]   --> src/engine/sled.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn get(&mut self, key: String) -> Result<Option<String>> {
[INFO] [stdout]    |            ^^^^^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/engine/mod.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout]  6 |     fn get(&self, key: String) -> Result<Option<String>>;
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    = note: expected signature `fn(&SledKvsEngine, std::string::String) -> std::result::Result<_, _>`
[INFO] [stdout]               found signature `fn(&mut SledKvsEngine, std::string::String) -> std::result::Result<_, _>`
[INFO] [stdout] help: change the self-receiver type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 13 -     fn get(&mut self, key: String) -> Result<Option<String>> {
[INFO] [stdout] 13 +     fn get(&self, key: String) -> Result<Option<String>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `remove` has an incompatible type for trait
[INFO] [stdout]   --> src/engine/sled.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn remove(&mut self, key: String) -> Result<()> {
[INFO] [stdout]    |               ^^^^^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/engine/mod.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 |     fn remove(&self, key: String) -> Result<()>;
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    = note: expected signature `fn(&SledKvsEngine, std::string::String) -> std::result::Result<_, _>`
[INFO] [stdout]               found signature `fn(&mut SledKvsEngine, std::string::String) -> std::result::Result<_, _>`
[INFO] [stdout] help: change the self-receiver type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 28 -     fn remove(&mut self, key: String) -> Result<()> {
[INFO] [stdout] 28 +     fn remove(&self, key: String) -> Result<()> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `set` has an incompatible type for trait
[INFO] [stdout]   --> src/engine/sled.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn set(&mut self, key: String, value: String) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/engine/mod.rs:4:12
[INFO] [stdout]    |
[INFO] [stdout]  4 |     fn set(&self, key: String, value: String) -> Result<()>;
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    = note: expected signature `fn(&SledKvsEngine, std::string::String, std::string::String) -> std::result::Result<_, _>`
[INFO] [stdout]               found signature `fn(&mut SledKvsEngine, std::string::String, std::string::String) -> std::result::Result<_, _>`
[INFO] [stdout] help: change the self-receiver type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 37 -     fn set(&mut self, key: String, value: String) -> Result<()> {
[INFO] [stdout] 37 +     fn set(&self, key: String, value: String) -> Result<()> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `SledKvsEngine: Clone` is not satisfied
[INFO] [stdout]   --> src/engine/sled.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl KvsEngine for SledKvsEngine {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ the trait `Clone` is not implemented for `SledKvsEngine`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `KvsEngine`
[INFO] [stdout]   --> src/engine/mod.rs:3:22
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub trait KvsEngine: Clone + Send + 'static {
[INFO] [stdout]    |                      ^^^^^ required by this bound in `KvsEngine`
[INFO] [stdout] help: consider annotating `SledKvsEngine` with `#[derive(Clone)]`
[INFO] [stdout]    |
[INFO] [stdout]  8 + #[derive(Clone)]
[INFO] [stdout]  9 | pub struct SledKvsEngine {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kvs` (lib) due to 4 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0053, E0277.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ac6bd37d4819479a0c64cede94f73847d2da62892159b35cc01496b41abb27a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6bd37d4819479a0c64cede94f73847d2da62892159b35cc01496b41abb27a9", kill_on_drop: false }`
[INFO] [stdout] ac6bd37d4819479a0c64cede94f73847d2da62892159b35cc01496b41abb27a9
