[INFO] fetching crate csv 1.3.1...
[INFO] checking csv-1.3.1 against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] extracting crate csv 1.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate csv 1.3.1 on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate csv 1.3.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate csv 1.3.1
[INFO] tweaked toml for crates.io crate csv 1.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate csv 1.3.1 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "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/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6122f98b730966df954b22f487eb9192155d5f4da5d41e44cf9ec4c673f5b9e8
[INFO] running `Command { std: "docker" "start" "-a" "6122f98b730966df954b22f487eb9192155d5f4da5d41e44cf9ec4c673f5b9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6122f98b730966df954b22f487eb9192155d5f4da5d41e44cf9ec4c673f5b9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6122f98b730966df954b22f487eb9192155d5f4da5d41e44cf9ec4c673f5b9e8", kill_on_drop: false }`
[INFO] [stdout] 6122f98b730966df954b22f487eb9192155d5f4da5d41e44cf9ec4c673f5b9e8
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35e94be55fabfdea080a49d4d3dde51efa0ca6c18b94f8fa453bb1b30947e449
[INFO] running `Command { std: "docker" "start" "-a" "35e94be55fabfdea080a49d4d3dde51efa0ca6c18b94f8fa453bb1b30947e449", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking bstr v1.7.0
[INFO] [stderr]     Checking csv v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this conversion is useless `&str` to `&str`
[INFO] [stdout]    --> src/deserializer.rs:428:58
[INFO] [stdout]     |
[INFO] [stdout] 428 |         self.next_field().and_then(|f| visitor.visit_str(f.into()))
[INFO] [stdout]     |                                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `csv` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "35e94be55fabfdea080a49d4d3dde51efa0ca6c18b94f8fa453bb1b30947e449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35e94be55fabfdea080a49d4d3dde51efa0ca6c18b94f8fa453bb1b30947e449", kill_on_drop: false }`
[INFO] [stdout] 35e94be55fabfdea080a49d4d3dde51efa0ca6c18b94f8fa453bb1b30947e449