[INFO] cloning repository https://github.com/probablykasper/csv-pipeline
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/probablykasper/csv-pipeline" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprobablykasper%2Fcsv-pipeline", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprobablykasper%2Fcsv-pipeline'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed0690f0a8a2003de302db9a2d2e3dc0b07480a6
[INFO] checking probablykasper/csv-pipeline/ed0690f0a8a2003de302db9a2d2e3dc0b07480a6 against try#4949cf2f817beadb9a248d423b6d55d6d2398ffe for pr-142681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprobablykasper%2Fcsv-pipeline" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/probablykasper/csv-pipeline
[INFO] finished tweaking git repo https://github.com/probablykasper/csv-pipeline
[INFO] tweaked toml for git repo https://github.com/probablykasper/csv-pipeline written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/probablykasper/csv-pipeline on toolchain 4949cf2f817beadb9a248d423b6d55d6d2398ffe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/probablykasper/csv-pipeline 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" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "fetch" "--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: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cce248de40e69c476c5440f745b462ba62411ebfabb1ae0825645044325bb3c
[INFO] running `Command { std: "docker" "start" "-a" "8cce248de40e69c476c5440f745b462ba62411ebfabb1ae0825645044325bb3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cce248de40e69c476c5440f745b462ba62411ebfabb1ae0825645044325bb3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cce248de40e69c476c5440f745b462ba62411ebfabb1ae0825645044325bb3c", kill_on_drop: false }`
[INFO] [stdout] 8cce248de40e69c476c5440f745b462ba62411ebfabb1ae0825645044325bb3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4470e32b96142a19a5f52bd891e214d4216bce3b146ae91d9847dbbd5120b211
[INFO] running `Command { std: "docker" "start" "-a" "4470e32b96142a19a5f52bd891e214d4216bce3b146ae91d9847dbbd5120b211", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bigdecimal v0.3.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking csv-pipeline v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]    --> src/pipeline_iterators.rs:154:6
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct Filter<I, F: FnMut(&Headers, &Row) -> bool> {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub source: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:105:24
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn string<'a>(s: &'a mut String) -> target::StringTarget {
[INFO] [stdout]     |                           ^^                -------------------- the lifetime gets resolved as `'a`
[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 consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn string<'a>(s: &'a mut String) -> target::StringTarget<'a> {
[INFO] [stdout]     |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]    --> src/pipeline_iterators.rs:154:6
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct Filter<I, F: FnMut(&Headers, &Row) -> bool> {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub source: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:105:24
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn string<'a>(s: &'a mut String) -> target::StringTarget {
[INFO] [stdout]     |                           ^^                -------------------- the lifetime gets resolved as `'a`
[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 consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn string<'a>(s: &'a mut String) -> target::StringTarget<'a> {
[INFO] [stdout]     |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "4470e32b96142a19a5f52bd891e214d4216bce3b146ae91d9847dbbd5120b211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4470e32b96142a19a5f52bd891e214d4216bce3b146ae91d9847dbbd5120b211", kill_on_drop: false }`
[INFO] [stdout] 4470e32b96142a19a5f52bd891e214d4216bce3b146ae91d9847dbbd5120b211