[INFO] fetching crate rust_js_ts_gen 0.0.0...
[INFO] checking rust_js_ts_gen-0.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rust_js_ts_gen 0.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rust_js_ts_gen 0.0.0 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 crates.io crate rust_js_ts_gen 0.0.0
[INFO] finished tweaking crates.io crate rust_js_ts_gen 0.0.0
[INFO] tweaked toml for crates.io crate rust_js_ts_gen 0.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 61 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c810d22d28acbda6c78dd9b9c661bb55406e79fcbcbb1ac6dc03eb73ec049297
[INFO] running `Command { std: "docker" "start" "-a" "c810d22d28acbda6c78dd9b9c661bb55406e79fcbcbb1ac6dc03eb73ec049297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c810d22d28acbda6c78dd9b9c661bb55406e79fcbcbb1ac6dc03eb73ec049297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c810d22d28acbda6c78dd9b9c661bb55406e79fcbcbb1ac6dc03eb73ec049297", kill_on_drop: false }`
[INFO] [stdout] c810d22d28acbda6c78dd9b9c661bb55406e79fcbcbb1ac6dc03eb73ec049297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 43e55054e366c691661b130af993a71bafd807734880dc3e62bc72b73a63e0bd
[INFO] running `Command { std: "docker" "start" "-a" "43e55054e366c691661b130af993a71bafd807734880dc3e62bc72b73a63e0bd", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_js_ts_gen v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rust_js_ts_gen` is imported redundantly
[INFO] [stdout]  --> benches/my_benchmark.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rust_js_ts_gen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rust_js_ts_gen` 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 0.28s
[INFO] running `Command { std: "docker" "inspect" "43e55054e366c691661b130af993a71bafd807734880dc3e62bc72b73a63e0bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e55054e366c691661b130af993a71bafd807734880dc3e62bc72b73a63e0bd", kill_on_drop: false }`
[INFO] [stdout] 43e55054e366c691661b130af993a71bafd807734880dc3e62bc72b73a63e0bd
[INFO] checking rust_js_ts_gen-0.0.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate rust_js_ts_gen 0.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rust_js_ts_gen 0.0.0 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 crates.io crate rust_js_ts_gen 0.0.0
[INFO] finished tweaking crates.io crate rust_js_ts_gen 0.0.0
[INFO] tweaked toml for crates.io crate rust_js_ts_gen 0.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 736a1aeaad5a17471da1f06f90eac644ceb6778fa037772772a6218802f86592
[INFO] running `Command { std: "docker" "start" "-a" "736a1aeaad5a17471da1f06f90eac644ceb6778fa037772772a6218802f86592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "736a1aeaad5a17471da1f06f90eac644ceb6778fa037772772a6218802f86592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "736a1aeaad5a17471da1f06f90eac644ceb6778fa037772772a6218802f86592", kill_on_drop: false }`
[INFO] [stdout] 736a1aeaad5a17471da1f06f90eac644ceb6778fa037772772a6218802f86592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 350e92cddb7bf9a46a6663a40cbc167ec2415cf6f63e946b160f4172fec5534f
[INFO] running `Command { std: "docker" "start" "-a" "350e92cddb7bf9a46a6663a40cbc167ec2415cf6f63e946b160f4172fec5534f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_js_ts_gen v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rust_js_ts_gen` is imported redundantly
[INFO] [stdout]  --> benches/my_benchmark.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rust_js_ts_gen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rust_js_ts_gen` 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 0.29s
[INFO] running `Command { std: "docker" "inspect" "350e92cddb7bf9a46a6663a40cbc167ec2415cf6f63e946b160f4172fec5534f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "350e92cddb7bf9a46a6663a40cbc167ec2415cf6f63e946b160f4172fec5534f", kill_on_drop: false }`
[INFO] [stdout] 350e92cddb7bf9a46a6663a40cbc167ec2415cf6f63e946b160f4172fec5534f