[INFO] fetching crate cargo-wgsl 0.0.14...
[INFO] checking cargo-wgsl-0.0.14 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate cargo-wgsl 0.0.14 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cargo-wgsl 0.0.14 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 cargo-wgsl 0.0.14
[INFO] finished tweaking crates.io crate cargo-wgsl 0.0.14
[INFO] tweaked toml for crates.io crate cargo-wgsl 0.0.14 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-wgsl 0.0.14 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 termcolor v1.2.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded jsonrpc-stdio-server v18.0.0
[INFO] [stderr]   Downloaded hexf-parse v0.2.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.63
[INFO] [stderr]   Downloaded tokio-util v0.6.10
[INFO] [stderr]   Downloaded serde_json v1.0.99
[INFO] [stderr]   Downloaded syn v2.0.22
[INFO] [stderr]   Downloaded naga v0.12.2
[INFO] [stderr]   Downloaded tokio v1.28.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 133b99218be998eaa2c98ceb064648f2912973e94f9c0436fc6d3331e3ff04b6
[INFO] running `Command { std: "docker" "start" "-a" "133b99218be998eaa2c98ceb064648f2912973e94f9c0436fc6d3331e3ff04b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "133b99218be998eaa2c98ceb064648f2912973e94f9c0436fc6d3331e3ff04b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "133b99218be998eaa2c98ceb064648f2912973e94f9c0436fc6d3331e3ff04b6", kill_on_drop: false }`
[INFO] [stdout] 133b99218be998eaa2c98ceb064648f2912973e94f9c0436fc6d3331e3ff04b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8feaea5f205bec783b39dc9c0d069e04e4213fc91e326416fffe0d6d791c79f5
[INFO] running `Command { std: "docker" "start" "-a" "8feaea5f205bec783b39dc9c0d069e04e4213fc91e326416fffe0d6d791c79f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking naga v0.12.2
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking jsonrpc-core v18.0.0
[INFO] [stderr]     Checking jsonrpc-stdio-server v18.0.0
[INFO] [stderr]     Checking cargo-wgsl v0.0.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/wgsl_error.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(std::io::Error),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/wgsl_error.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(std::io::Error),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(()),
[INFO] [stdout]    |           ~~
[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 20.63s
[INFO] running `Command { std: "docker" "inspect" "8feaea5f205bec783b39dc9c0d069e04e4213fc91e326416fffe0d6d791c79f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8feaea5f205bec783b39dc9c0d069e04e4213fc91e326416fffe0d6d791c79f5", kill_on_drop: false }`
[INFO] [stdout] 8feaea5f205bec783b39dc9c0d069e04e4213fc91e326416fffe0d6d791c79f5
[INFO] checking cargo-wgsl-0.0.14 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate cargo-wgsl 0.0.14 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate cargo-wgsl 0.0.14 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 cargo-wgsl 0.0.14
[INFO] finished tweaking crates.io crate cargo-wgsl 0.0.14
[INFO] tweaked toml for crates.io crate cargo-wgsl 0.0.14 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-wgsl 0.0.14 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] [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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f1b5df1a06a84792264562c9c1880bb03f7594b0f1cfcaf2e4f1a9c8795ecda4
[INFO] running `Command { std: "docker" "start" "-a" "f1b5df1a06a84792264562c9c1880bb03f7594b0f1cfcaf2e4f1a9c8795ecda4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1b5df1a06a84792264562c9c1880bb03f7594b0f1cfcaf2e4f1a9c8795ecda4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b5df1a06a84792264562c9c1880bb03f7594b0f1cfcaf2e4f1a9c8795ecda4", kill_on_drop: false }`
[INFO] [stdout] f1b5df1a06a84792264562c9c1880bb03f7594b0f1cfcaf2e4f1a9c8795ecda4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 94ec97f495437286305599558fcd009c014dbc30351c487b74dad3032b2e759e
[INFO] running `Command { std: "docker" "start" "-a" "94ec97f495437286305599558fcd009c014dbc30351c487b74dad3032b2e759e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking naga v0.12.2
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking jsonrpc-core v18.0.0
[INFO] [stderr]     Checking jsonrpc-stdio-server v18.0.0
[INFO] [stderr]     Checking cargo-wgsl v0.0.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/wgsl_error.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(std::io::Error),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/wgsl_error.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(std::io::Error),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |     IoErr(()),
[INFO] [stdout]    |           ~~
[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 16.28s
[INFO] running `Command { std: "docker" "inspect" "94ec97f495437286305599558fcd009c014dbc30351c487b74dad3032b2e759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ec97f495437286305599558fcd009c014dbc30351c487b74dad3032b2e759e", kill_on_drop: false }`
[INFO] [stdout] 94ec97f495437286305599558fcd009c014dbc30351c487b74dad3032b2e759e