[INFO] fetching crate microkv 0.2.6...
[INFO] checking microkv-0.2.6 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate microkv 0.2.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate microkv 0.2.6 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate microkv 0.2.6
[INFO] finished tweaking crates.io crate microkv 0.2.6
[INFO] tweaked toml for crates.io crate microkv 0.2.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05b6855b2beb3af827c42f6aa9a49c53becb274e37141af229f579834a6049d5
[INFO] running `Command { std: "docker" "start" "-a" "05b6855b2beb3af827c42f6aa9a49c53becb274e37141af229f579834a6049d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05b6855b2beb3af827c42f6aa9a49c53becb274e37141af229f579834a6049d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b6855b2beb3af827c42f6aa9a49c53becb274e37141af229f579834a6049d5", kill_on_drop: false }`
[INFO] [stdout] 05b6855b2beb3af827c42f6aa9a49c53becb274e37141af229f579834a6049d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d880eff7f82a5cdb6be6db9a39a331c1ac1868e371b12dbcebcd2b5b351bac93
[INFO] running `Command { std: "docker" "start" "-a" "d880eff7f82a5cdb6be6db9a39a331c1ac1868e371b12dbcebcd2b5b351bac93", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking signature v1.3.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking ed25519 v1.2.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking secstr v0.4.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking sodiumoxide v0.2.7
[INFO] [stderr]     Checking microkv v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> tests/tests.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 |     kv.put(KEY_NAME, value).expect("cannot insert value");
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      expected reference, found `u64`
[INFO] [stdout]    |                      help: consider borrowing here: `&value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&_`
[INFO] [stdout]                    found type `u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> tests/tests.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     kv.put(KEY_NAME, value).expect("cannot insert value");
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      expected reference, found `i32`
[INFO] [stdout]    |                      help: consider borrowing here: `&value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&_`
[INFO] [stdout]                    found type `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microkv`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d880eff7f82a5cdb6be6db9a39a331c1ac1868e371b12dbcebcd2b5b351bac93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d880eff7f82a5cdb6be6db9a39a331c1ac1868e371b12dbcebcd2b5b351bac93", kill_on_drop: false }`
[INFO] [stdout] d880eff7f82a5cdb6be6db9a39a331c1ac1868e371b12dbcebcd2b5b351bac93