[INFO] fetching crate wasm-bindgen-externref-xform 0.2.89...
[INFO] checking wasm-bindgen-externref-xform-0.2.89 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate wasm-bindgen-externref-xform 0.2.89 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate wasm-bindgen-externref-xform 0.2.89 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 wasm-bindgen-externref-xform 0.2.89
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wasm-bindgen-externref-xform 0.2.89
[INFO] tweaked toml for crates.io crate wasm-bindgen-externref-xform 0.2.89 written to /workspace/builds/worker-6-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 41 packages
[INFO] [stderr]       Adding fallible-iterator v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding gimli v0.26.2 (latest: v0.28.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasm-encoder v0.29.0 (latest: v0.202.0)
[INFO] [stderr]       Adding wasmparser v0.80.2 (latest: v0.202.0)
[INFO] [stderr]       Adding wasmparser v0.121.2 (latest: v0.202.0)
[INFO] [stderr]       Adding wasmprinter v0.2.80 (latest: v0.202.0)
[INFO] [stderr]       Adding wast v21.0.0 (latest: v202.0.0)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wast v21.0.0
[INFO] [stderr]   Downloaded walrus v0.20.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a9c21e2cdce8815c8b016f2d9ef2c60ed710a6b767ac9b57329c7c2918d3b2aa
[INFO] running `Command { std: "docker" "start" "-a" "a9c21e2cdce8815c8b016f2d9ef2c60ed710a6b767ac9b57329c7c2918d3b2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9c21e2cdce8815c8b016f2d9ef2c60ed710a6b767ac9b57329c7c2918d3b2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c21e2cdce8815c8b016f2d9ef2c60ed710a6b767ac9b57329c7c2918d3b2aa", kill_on_drop: false }`
[INFO] [stdout] a9c21e2cdce8815c8b016f2d9ef2c60ed710a6b767ac9b57329c7c2918d3b2aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 525615f1478465ec911d12be246f48fd3eb6d7c2a73555aa841f0755be4908ef
[INFO] running `Command { std: "docker" "start" "-a" "525615f1478465ec911d12be246f48fd3eb6d7c2a73555aa841f0755be4908ef", kill_on_drop: false }`
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]     Checking wasmparser v0.80.2
[INFO] [stderr]     Checking bumpalo v3.15.4
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking wasm-encoder v0.29.0
[INFO] [stderr]     Checking wasm-encoder v0.202.0
[INFO] [stderr]     Checking wast v21.0.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking wasmparser v0.121.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking wast v202.0.0
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]    Compiling walrus-macro v0.19.0
[INFO] [stderr]     Checking walrus v0.20.3
[INFO] [stderr]     Checking wat v1.202.0
[INFO] [stderr]     Checking wasmprinter v0.2.80
[INFO] [stderr]     Checking wasm-bindgen-externref-xform v0.2.89 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `InstrLocId` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:24:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | use walrus::ir::*;
[INFO] [stdout]    |     ------------- the item `InstrLocId` is already imported here
[INFO] [stdout] 24 | use walrus::{ElementId, ExportId, ImportId, InstrLocId, TypeId};
[INFO] [stdout]    |                                             ^^^^^^^^^^
[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] [stdout] warning: the item `InstrLocId` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:24:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | use walrus::ir::*;
[INFO] [stdout]    |     ------------- the item `InstrLocId` is already imported here
[INFO] [stdout] 24 | use walrus::{ElementId, ExportId, ImportId, InstrLocId, TypeId};
[INFO] [stdout]    |                                             ^^^^^^^^^^
[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 11.37s
[INFO] running `Command { std: "docker" "inspect" "525615f1478465ec911d12be246f48fd3eb6d7c2a73555aa841f0755be4908ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "525615f1478465ec911d12be246f48fd3eb6d7c2a73555aa841f0755be4908ef", kill_on_drop: false }`
[INFO] [stdout] 525615f1478465ec911d12be246f48fd3eb6d7c2a73555aa841f0755be4908ef