[INFO] fetching crate libkv 0.1.0...
[INFO] testing libkv-0.1.0 against master#7704328ba5ae8d6ce0ac303c9d5a1a1605906766 for pr-146989
[INFO] extracting crate libkv 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate libkv 0.1.0
[INFO] finished tweaking crates.io crate libkv 0.1.0
[INFO] tweaked toml for crates.io crate libkv 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libkv 0.1.0 on toolchain 7704328ba5ae8d6ce0ac303c9d5a1a1605906766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e593bd3e2812d5b626c16587c90e1b9e4452ee6dde6e3106099eecaf8aa1d44
[INFO] running `Command { std: "docker" "start" "-a" "8e593bd3e2812d5b626c16587c90e1b9e4452ee6dde6e3106099eecaf8aa1d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e593bd3e2812d5b626c16587c90e1b9e4452ee6dde6e3106099eecaf8aa1d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e593bd3e2812d5b626c16587c90e1b9e4452ee6dde6e3106099eecaf8aa1d44", kill_on_drop: false }`
[INFO] [stdout] 8e593bd3e2812d5b626c16587c90e1b9e4452ee6dde6e3106099eecaf8aa1d44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fb66d807601bb68605ba0e11b267eab95be793f88717e1148fe5b1925089228
[INFO] running `Command { std: "docker" "start" "-a" "3fb66d807601bb68605ba0e11b267eab95be793f88717e1148fe5b1925089228", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling libkv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/storage.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     ) -> Result<Iter<Vec<u8>>, KeySerializeError>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     ) -> Result<Iter<'_, Vec<u8>>, KeySerializeError>;
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/storage.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 46 |     ) -> Result<Iter<(Vec<u8>, Vec<u8>)>, KeySerializeError>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ) -> Result<Iter<'_, (Vec<u8>, Vec<u8>)>, KeySerializeError>;
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/storage.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 121 |     ) -> Result<Iter<Vec<u8>>, KeySerializeError> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 121 |     ) -> Result<Iter<'_, Vec<u8>>, KeySerializeError> {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/storage.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 142 |     ) -> Result<Iter<(Vec<u8>, Vec<u8>)>, KeySerializeError> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 142 |     ) -> Result<Iter<'_, (Vec<u8>, Vec<u8>)>, KeySerializeError> {
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `Command { std: "docker" "inspect" "3fb66d807601bb68605ba0e11b267eab95be793f88717e1148fe5b1925089228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb66d807601bb68605ba0e11b267eab95be793f88717e1148fe5b1925089228", kill_on_drop: false }`
[INFO] [stdout] 3fb66d807601bb68605ba0e11b267eab95be793f88717e1148fe5b1925089228
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df75b9986abe1d36466c4d73fc9c56bdff329c59be3a2294a3d154fe5c5cfc2c
[INFO] running `Command { std: "docker" "start" "-a" "df75b9986abe1d36466c4d73fc9c56bdff329c59be3a2294a3d154fe5c5cfc2c", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `proc-macro2 v1.0.106`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   config.json not found in registry
[INFO] running `Command { std: "docker" "inspect" "df75b9986abe1d36466c4d73fc9c56bdff329c59be3a2294a3d154fe5c5cfc2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df75b9986abe1d36466c4d73fc9c56bdff329c59be3a2294a3d154fe5c5cfc2c", kill_on_drop: false }`
[INFO] [stdout] df75b9986abe1d36466c4d73fc9c56bdff329c59be3a2294a3d154fe5c5cfc2c