[INFO] cloning repository https://github.com/chorus-lang/chorus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chorus-lang/chorus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchorus-lang%2Fchorus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchorus-lang%2Fchorus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 054119c1615b1ef4b9e61ea551f805dbca87184d
[INFO] checking chorus-lang/chorus against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchorus-lang%2Fchorus" "/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/chorus-lang/chorus 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/chorus-lang/chorus
[INFO] finished tweaking git repo https://github.com/chorus-lang/chorus
[INFO] tweaked toml for git repo https://github.com/chorus-lang/chorus written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chorus-lang/chorus 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lua v0.0.10
[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] 51faacc678d7d218c099b9726549ec73f9210841374a3de9a9e41c333b76ff30
[INFO] running `Command { std: "docker" "start" "-a" "51faacc678d7d218c099b9726549ec73f9210841374a3de9a9e41c333b76ff30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51faacc678d7d218c099b9726549ec73f9210841374a3de9a9e41c333b76ff30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51faacc678d7d218c099b9726549ec73f9210841374a3de9a9e41c333b76ff30", kill_on_drop: false }`
[INFO] [stdout] 51faacc678d7d218c099b9726549ec73f9210841374a3de9a9e41c333b76ff30
[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] 69b9fb0e6d74d2ddf5c55065547191745c8da247e0ab5142d5a877f1ecf8f1d6
[INFO] running `Command { std: "docker" "start" "-a" "69b9fb0e6d74d2ddf5c55065547191745c8da247e0ab5142d5a877f1ecf8f1d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling lua v0.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking coding_language v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `compile_target` is never read
[INFO] [stdout]  --> src/parser.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Parser {
[INFO] [stdout]   |                ------ field in this struct
[INFO] [stdout] 5 |         compile_target: Languages,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `compile_target` is never read
[INFO] [stdout]  --> src/parser.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Parser {
[INFO] [stdout]   |                ------ field in this struct
[INFO] [stdout] 5 |         compile_target: Languages,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 5.50s
[INFO] running `Command { std: "docker" "inspect" "69b9fb0e6d74d2ddf5c55065547191745c8da247e0ab5142d5a877f1ecf8f1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69b9fb0e6d74d2ddf5c55065547191745c8da247e0ab5142d5a877f1ecf8f1d6", kill_on_drop: false }`
[INFO] [stdout] 69b9fb0e6d74d2ddf5c55065547191745c8da247e0ab5142d5a877f1ecf8f1d6
[INFO] checking chorus-lang/chorus against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchorus-lang%2Fchorus" "/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/chorus-lang/chorus on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chorus-lang/chorus
[INFO] finished tweaking git repo https://github.com/chorus-lang/chorus
[INFO] tweaked toml for git repo https://github.com/chorus-lang/chorus written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/chorus-lang/chorus 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3adf490db1342e6daa6d0d70407ba77bb63255a45f05ffe5c5adf391d0bb5f91
[INFO] running `Command { std: "docker" "start" "-a" "3adf490db1342e6daa6d0d70407ba77bb63255a45f05ffe5c5adf391d0bb5f91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3adf490db1342e6daa6d0d70407ba77bb63255a45f05ffe5c5adf391d0bb5f91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3adf490db1342e6daa6d0d70407ba77bb63255a45f05ffe5c5adf391d0bb5f91", kill_on_drop: false }`
[INFO] [stdout] 3adf490db1342e6daa6d0d70407ba77bb63255a45f05ffe5c5adf391d0bb5f91
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b072fcc0978556e9aed8724c0f324f3ef1054403d2b2472e5e868b3d8a18d09
[INFO] running `Command { std: "docker" "start" "-a" "7b072fcc0978556e9aed8724c0f324f3ef1054403d2b2472e5e868b3d8a18d09", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling lua v0.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking coding_language v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `compile_target` is never read
[INFO] [stdout]  --> src/parser.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Parser {
[INFO] [stdout]   |                ------ field in this struct
[INFO] [stdout] 5 |         compile_target: Languages,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `compile_target` is never read
[INFO] [stdout]  --> src/parser.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Parser {
[INFO] [stdout]   |                ------ field in this struct
[INFO] [stdout] 5 |         compile_target: Languages,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `Command { std: "docker" "inspect" "7b072fcc0978556e9aed8724c0f324f3ef1054403d2b2472e5e868b3d8a18d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b072fcc0978556e9aed8724c0f324f3ef1054403d2b2472e5e868b3d8a18d09", kill_on_drop: false }`
[INFO] [stdout] 7b072fcc0978556e9aed8724c0f324f3ef1054403d2b2472e5e868b3d8a18d09