[INFO] fetching crate samsvar 0.1.2...
[INFO] checking samsvar-0.1.2 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] extracting crate samsvar 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate samsvar 0.1.2
[INFO] finished tweaking crates.io crate samsvar 0.1.2
[INFO] tweaked toml for crates.io crate samsvar 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate samsvar 0.1.2 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "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" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to highest compatible versions
[INFO] [stderr]       Adding nom v7.1.3 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c
[INFO] running `Command { std: "docker" "start" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]     Checking serde_json v1.0.154
[INFO] [stderr]     Checking samsvar v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `Value` samsvar
[INFO] [stdout]    --> src/lib.rs:178:19
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let arg = self.get_val(&x.key).unwrap().into();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 178 -         let arg = self.get_val(&x.key).unwrap().into();
[INFO] [stdout] 178 +         let arg = self.get_val(&x.key).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 178 -         let arg = self.get_val(&x.key).unwrap().into();
[INFO] [stdout] 178 +         let arg = <Value as Into<_>>::into(self.get_val(&x.key).unwrap());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `serde_json::Value` samsvar
[INFO] [stdout]    --> src/lib.rs:178:19
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let arg = self.get_val(&x.key).unwrap().into();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 178 -         let arg = self.get_val(&x.key).unwrap().into();
[INFO] [stdout] 178 +         let arg = self.get_val(&x.key).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 178 -         let arg = self.get_val(&x.key).unwrap().into();
[INFO] [stdout] 178 +         let arg = <serde_json::Value as Into<_>>::into(self.get_val(&x.key).unwrap());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `samsvar` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `samsvar` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c", kill_on_drop: false }`
[INFO] [stdout] 4d5b73f6a01f357cd25ac4b41b8e59cba01daaa175a6976ee3f54bef6d0aa36c
