[INFO] fetching crate silkgen 0.4.0...
[INFO] checking silkgen-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate silkgen 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate silkgen 0.4.0 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 silkgen 0.4.0
[INFO] finished tweaking crates.io crate silkgen 0.4.0
[INFO] tweaked toml for crates.io crate silkgen 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate silkgen 0.4.0 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 insta v1.34.0
[INFO] [stderr]   Downloaded az v1.2.1
[INFO] [stderr]   Downloaded fixed v1.24.0
[INFO] [stderr]   Downloaded half v2.3.1
[INFO] [stderr]   Downloaded fixed-macro-impl v1.2.0
[INFO] [stderr]   Downloaded fixed-macro-types v1.2.0
[INFO] [stderr]   Downloaded fixed-macro v1.2.0
[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] f4fbe3329139ac4e7fc13930dff8f06c252a1522c600aba673d9dd713d4495a4
[INFO] running `Command { std: "docker" "start" "-a" "f4fbe3329139ac4e7fc13930dff8f06c252a1522c600aba673d9dd713d4495a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4fbe3329139ac4e7fc13930dff8f06c252a1522c600aba673d9dd713d4495a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4fbe3329139ac4e7fc13930dff8f06c252a1522c600aba673d9dd713d4495a4", kill_on_drop: false }`
[INFO] [stdout] f4fbe3329139ac4e7fc13930dff8f06c252a1522c600aba673d9dd713d4495a4
[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] 5ba18846f4fa6009a5dbac1a00d9e01b99bae02b7b63dca342dbb89d6f11a789
[INFO] running `Command { std: "docker" "start" "-a" "5ba18846f4fa6009a5dbac1a00d9e01b99bae02b7b63dca342dbb89d6f11a789", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling fixed v1.24.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling half v2.3.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking similar v2.3.0
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking insta v1.34.0
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]    Compiling fixed-macro-impl v1.2.0
[INFO] [stderr]     Checking fixed-macro-types v1.2.0
[INFO] [stderr]     Checking fixed-macro v1.2.0
[INFO] [stderr]     Checking silkgen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.32s
[INFO] running `Command { std: "docker" "inspect" "5ba18846f4fa6009a5dbac1a00d9e01b99bae02b7b63dca342dbb89d6f11a789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba18846f4fa6009a5dbac1a00d9e01b99bae02b7b63dca342dbb89d6f11a789", kill_on_drop: false }`
[INFO] [stdout] 5ba18846f4fa6009a5dbac1a00d9e01b99bae02b7b63dca342dbb89d6f11a789