[INFO] cloning repository https://github.com/YumaYX/CSV2JSON
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YumaYX/CSV2JSON" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumaYX%2FCSV2JSON", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumaYX%2FCSV2JSON'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b24683520c60a25bfa775c2ed48cc95c4f0fcc1
[INFO] checking YumaYX/CSV2JSON against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumaYX%2FCSV2JSON" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YumaYX/CSV2JSON on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YumaYX/CSV2JSON
[INFO] finished tweaking git repo https://github.com/YumaYX/CSV2JSON
[INFO] tweaked toml for git repo https://github.com/YumaYX/CSV2JSON written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/YumaYX/CSV2JSON 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6df63a0fb448743a7b415cc7cab1d84d570d13c8238ff69fa1ea2fd17fd67cb2
[INFO] running `Command { std: "docker" "start" "-a" "6df63a0fb448743a7b415cc7cab1d84d570d13c8238ff69fa1ea2fd17fd67cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6df63a0fb448743a7b415cc7cab1d84d570d13c8238ff69fa1ea2fd17fd67cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df63a0fb448743a7b415cc7cab1d84d570d13c8238ff69fa1ea2fd17fd67cb2", kill_on_drop: false }`
[INFO] [stdout] 6df63a0fb448743a7b415cc7cab1d84d570d13c8238ff69fa1ea2fd17fd67cb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 127ee04b1f4f1455df464a26ccff2d988f7413ffbb099ce0ab9eaef56649ba5a
[INFO] running `Command { std: "docker" "start" "-a" "127ee04b1f4f1455df464a26ccff2d988f7413ffbb099ce0ab9eaef56649ba5a", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling assert_cmd v2.0.14
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking predicates v3.1.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking csv2json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json::{self, Map, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json::{self, Map, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.49s
[INFO] running `Command { std: "docker" "inspect" "127ee04b1f4f1455df464a26ccff2d988f7413ffbb099ce0ab9eaef56649ba5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "127ee04b1f4f1455df464a26ccff2d988f7413ffbb099ce0ab9eaef56649ba5a", kill_on_drop: false }`
[INFO] [stdout] 127ee04b1f4f1455df464a26ccff2d988f7413ffbb099ce0ab9eaef56649ba5a
[INFO] checking YumaYX/CSV2JSON against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumaYX%2FCSV2JSON" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YumaYX/CSV2JSON on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YumaYX/CSV2JSON
[INFO] finished tweaking git repo https://github.com/YumaYX/CSV2JSON
[INFO] tweaked toml for git repo https://github.com/YumaYX/CSV2JSON written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/YumaYX/CSV2JSON 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c6c97b67136fa28d8eb4469a15a14cd612dcbe882e36280c667f852a1a052fb
[INFO] running `Command { std: "docker" "start" "-a" "3c6c97b67136fa28d8eb4469a15a14cd612dcbe882e36280c667f852a1a052fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6c97b67136fa28d8eb4469a15a14cd612dcbe882e36280c667f852a1a052fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6c97b67136fa28d8eb4469a15a14cd612dcbe882e36280c667f852a1a052fb", kill_on_drop: false }`
[INFO] [stdout] 3c6c97b67136fa28d8eb4469a15a14cd612dcbe882e36280c667f852a1a052fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce7d3c6b2ed4320bb79227cb95090140932d620f7b55d63825af2d2cf2b5a030
[INFO] running `Command { std: "docker" "start" "-a" "ce7d3c6b2ed4320bb79227cb95090140932d620f7b55d63825af2d2cf2b5a030", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling assert_cmd v2.0.14
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking predicates v3.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking csv2json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json::{self, Map, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json::{self, Map, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.86s
[INFO] running `Command { std: "docker" "inspect" "ce7d3c6b2ed4320bb79227cb95090140932d620f7b55d63825af2d2cf2b5a030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce7d3c6b2ed4320bb79227cb95090140932d620f7b55d63825af2d2cf2b5a030", kill_on_drop: false }`
[INFO] [stdout] ce7d3c6b2ed4320bb79227cb95090140932d620f7b55d63825af2d2cf2b5a030