[INFO] fetching crate respico 0.1.0...
[INFO] checking respico-0.1.0 against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] extracting crate respico 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate respico 0.1.0 on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate respico 0.1.0
[INFO] finished tweaking crates.io crate respico 0.1.0
[INFO] tweaked toml for crates.io crate respico 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c09b1a3582d56ed37a8bd6a56a4d33651a5a8e4b2e4fd517c017f8fc584372ce
[INFO] running `Command { std: "docker" "start" "-a" "c09b1a3582d56ed37a8bd6a56a4d33651a5a8e4b2e4fd517c017f8fc584372ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c09b1a3582d56ed37a8bd6a56a4d33651a5a8e4b2e4fd517c017f8fc584372ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c09b1a3582d56ed37a8bd6a56a4d33651a5a8e4b2e4fd517c017f8fc584372ce", kill_on_drop: false }`
[INFO] [stdout] c09b1a3582d56ed37a8bd6a56a4d33651a5a8e4b2e4fd517c017f8fc584372ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f6e3e659a7c32d68e3a94810d5e678059bf9886351525cd419caaa049bdfd82
[INFO] running `Command { std: "docker" "start" "-a" "3f6e3e659a7c32d68e3a94810d5e678059bf9886351525cd419caaa049bdfd82", kill_on_drop: false }`
[INFO] [stderr]     Checking respico v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]  --> src/parser.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn parse(s: &str) -> Result<Value, Error> {
[INFO] [stdout]   |                 ^^^^            ----- the lifetime gets resolved as `'_`
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 this lifetime flows to the output
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn parse(s: &str) -> Result<Value<'_>, Error> {
[INFO] [stdout]   |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]  --> src/parser.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn parse(s: &str) -> Result<Value, Error> {
[INFO] [stdout]   |                 ^^^^            ----- the lifetime gets resolved as `'_`
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 this lifetime flows to the output
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn parse(s: &str) -> Result<Value<'_>, Error> {
[INFO] [stdout]   |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "3f6e3e659a7c32d68e3a94810d5e678059bf9886351525cd419caaa049bdfd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f6e3e659a7c32d68e3a94810d5e678059bf9886351525cd419caaa049bdfd82", kill_on_drop: false }`
[INFO] [stdout] 3f6e3e659a7c32d68e3a94810d5e678059bf9886351525cd419caaa049bdfd82