[INFO] cloning repository https://github.com/zetah11/illiol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zetah11/illiol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzetah11%2Filliol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzetah11%2Filliol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0b9cc7929e87777fcbf54a30d96740fce5ae91b
[INFO] checking zetah11/illiol against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzetah11%2Filliol" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zetah11/illiol 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/zetah11/illiol
[INFO] finished tweaking git repo https://github.com/zetah11/illiol
[INFO] tweaked toml for git repo https://github.com/zetah11/illiol written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zetah11/illiol 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bimap v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1937fcf15ea34705227470c44e808289af23cd1e9b694f83945e456b676509f5
[INFO] running `Command { std: "docker" "start" "-a" "1937fcf15ea34705227470c44e808289af23cd1e9b694f83945e456b676509f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1937fcf15ea34705227470c44e808289af23cd1e9b694f83945e456b676509f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1937fcf15ea34705227470c44e808289af23cd1e9b694f83945e456b676509f5", kill_on_drop: false }`
[INFO] [stdout] 1937fcf15ea34705227470c44e808289af23cd1e9b694f83945e456b676509f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f19241dee79aab892f2fa0258b739e46606a79044e79519b5af588dfd7e4451b
[INFO] running `Command { std: "docker" "start" "-a" "f19241dee79aab892f2fa0258b739e46606a79044e79519b5af588dfd7e4451b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking bimap v0.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking illiol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Decls` is never constructed
[INFO] [stdout]  --> src/typeck/tween.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Decls {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Decls` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Constructor` and `Apply` are never constructed
[INFO] [stdout]   --> src/typeck/tween.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum Pat {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 42 |     Constructor(Name),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 43 |     Bind(Name),
[INFO] [stdout] 44 |     Apply(Box<Pat>, Box<Pat>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pat` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Decls` is never constructed
[INFO] [stdout]  --> src/typeck/tween.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Decls {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Decls` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Constructor` and `Apply` are never constructed
[INFO] [stdout]   --> src/typeck/tween.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum Pat {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 42 |     Constructor(Name),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 43 |     Bind(Name),
[INFO] [stdout] 44 |     Apply(Box<Pat>, Box<Pat>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pat` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "f19241dee79aab892f2fa0258b739e46606a79044e79519b5af588dfd7e4451b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f19241dee79aab892f2fa0258b739e46606a79044e79519b5af588dfd7e4451b", kill_on_drop: false }`
[INFO] [stdout] f19241dee79aab892f2fa0258b739e46606a79044e79519b5af588dfd7e4451b