[INFO] cloning repository https://github.com/pandanoir/json-parser-toy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pandanoir/json-parser-toy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandanoir%2Fjson-parser-toy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandanoir%2Fjson-parser-toy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ceaade27d116bdb7f44d3639539a39fc0eb20eb5
[INFO] checking pandanoir/json-parser-toy against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandanoir%2Fjson-parser-toy" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pandanoir/json-parser-toy 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/pandanoir/json-parser-toy
[INFO] finished tweaking git repo https://github.com/pandanoir/json-parser-toy
[INFO] tweaked toml for git repo https://github.com/pandanoir/json-parser-toy written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pandanoir/json-parser-toy 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aec0fa86b72f84e06d14fd1e843ac02421b461e883f2af9e5c57f0640dd9407d
[INFO] running `Command { std: "docker" "start" "-a" "aec0fa86b72f84e06d14fd1e843ac02421b461e883f2af9e5c57f0640dd9407d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aec0fa86b72f84e06d14fd1e843ac02421b461e883f2af9e5c57f0640dd9407d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec0fa86b72f84e06d14fd1e843ac02421b461e883f2af9e5c57f0640dd9407d", kill_on_drop: false }`
[INFO] [stdout] aec0fa86b72f84e06d14fd1e843ac02421b461e883f2af9e5c57f0640dd9407d
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77364316d4cea601d5fbb0266094768373c34cad4e8d31d55a5810ff45432d76
[INFO] running `Command { std: "docker" "start" "-a" "77364316d4cea601d5fbb0266094768373c34cad4e8d31d55a5810ff45432d76", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking my-jq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `token` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |     ^^^^^                              - the item `token` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ParseError` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |            ^^^^^^^^^^                  - the item `ParseError` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Parser` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |                        ^^^^^^          - the item `Parser` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Stream` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |                                ^^^^^^  - the item `Stream` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `token` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |     ^^^^^                              - the item `token` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ParseError` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |            ^^^^^^^^^^                  - the item `ParseError` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Parser` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |                        ^^^^^^          - the item `Parser` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Stream` is imported redundantly
[INFO] [stdout]  --> src/parser.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     token, ParseError, Parser, Stream, *,
[INFO] [stdout]   |                                ^^^^^^  - the item `Stream` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.61s
[INFO] running `Command { std: "docker" "inspect" "77364316d4cea601d5fbb0266094768373c34cad4e8d31d55a5810ff45432d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77364316d4cea601d5fbb0266094768373c34cad4e8d31d55a5810ff45432d76", kill_on_drop: false }`
[INFO] [stdout] 77364316d4cea601d5fbb0266094768373c34cad4e8d31d55a5810ff45432d76