[INFO] fetching crate ambient 0.2.8...
[INFO] checking ambient-0.2.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ambient 0.2.8 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate ambient 0.2.8 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 ambient 0.2.8
[INFO] finished tweaking crates.io crate ambient 0.2.8
[INFO] tweaked toml for crates.io crate ambient 0.2.8 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate ambient 0.2.8 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 byteorder v1.4.3
[INFO] [stderr]   Downloaded crc32fast v1.3.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.16
[INFO] [stderr]   Downloaded miniz_oxide v0.7.1
[INFO] [stderr]   Downloaded once_cell v1.18.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.87
[INFO] [stderr]   Downloaded semver v1.0.18
[INFO] [stderr]   Downloaded futures-sink v0.3.28
[INFO] [stderr]   Downloaded clap_derive v4.4.2
[INFO] [stderr]   Downloaded anyhow v1.0.75
[INFO] [stderr]   Downloaded rustix v0.38.13
[INFO] [stderr]   Downloaded web-sys v0.3.64
[INFO] [stderr]   Downloaded libc v0.2.148
[INFO] [stderr]   Downloaded anstyle-parse v0.2.1
[INFO] [stderr]   Downloaded anstyle-query v1.0.0
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.7
[INFO] [stderr]   Downloaded anstyle-wincon v2.1.0
[INFO] [stderr]   Downloaded colorchoice v1.0.0
[INFO] [stderr]   Downloaded utf8parse v0.2.1
[INFO] [stderr]   Downloaded anstream v0.5.0
[INFO] [stderr]   Downloaded anstyle v1.0.3
[INFO] [stderr]   Downloaded clap_lex v0.5.1
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded clap_builder v4.4.2
[INFO] [stderr]   Downloaded heck v0.4.1
[INFO] [stderr]   Downloaded clap v4.4.3
[INFO] [stderr]   Downloaded colored v2.0.4
[INFO] [stderr]   Downloaded option-ext v0.2.0
[INFO] [stderr]   Downloaded getrandom v0.2.10
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded thiserror-impl v1.0.48
[INFO] [stderr]   Downloaded thiserror v1.0.48
[INFO] [stderr]   Downloaded redox_users v0.4.3
[INFO] [stderr]   Downloaded dirs-sys v0.4.1
[INFO] [stderr]   Downloaded hermit-abi v0.3.2
[INFO] [stderr]   Downloaded bitflags v2.4.0
[INFO] [stderr]   Downloaded ring v0.16.20
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.2
[INFO] [stderr]   Downloaded errno v0.3.3
[INFO] [stderr]   Downloaded is-terminal v0.4.9
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded env_logger v0.10.0
[INFO] [stderr]   Downloaded futures-executor v0.3.28
[INFO] [stderr]   Downloaded futures-macro v0.3.28
[INFO] [stderr]   Downloaded rustls v0.21.7
[INFO] [stderr]   Downloaded directories v5.0.1
[INFO] [stderr]   Downloaded humantime v2.1.0
[INFO] [stderr]   Downloaded termcolor v1.2.0
[INFO] [stderr]   Downloaded futures-channel v0.3.28
[INFO] [stderr]   Downloaded futures-core v0.3.28
[INFO] [stderr]   Downloaded futures-io v0.3.28
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.87
[INFO] [stderr]   Downloaded untrusted v0.7.1
[INFO] [stderr]   Downloaded rustls-webpki v0.101.6
[INFO] [stderr]   Downloaded itoa v1.0.9
[INFO] [stderr]   Downloaded ryu v1.0.15
[INFO] [stderr]   Downloaded quote v1.0.33
[INFO] [stderr]   Downloaded syn v2.0.33
[INFO] [stderr]   Downloaded serde_derive v1.0.188
[INFO] [stderr]   Downloaded serde v1.0.188
[INFO] [stderr]   Downloaded idna v0.4.0
[INFO] [stderr]   Downloaded webpki-roots v0.25.2
[INFO] [stderr]   Downloaded futures-task v0.3.28
[INFO] [stderr]   Downloaded pin-project-lite v0.2.13
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded futures-util v0.3.28
[INFO] [stderr]   Downloaded futures v0.3.28
[INFO] [stderr]   Downloaded either v1.9.0
[INFO] [stderr]   Downloaded toml v0.8.0
[INFO] [stderr]   Downloaded hashbrown v0.14.0
[INFO] [stderr]   Downloaded indexmap v2.0.0
[INFO] [stderr]   Downloaded toml_datetime v0.6.3
[INFO] [stderr]   Downloaded memchr v2.6.3
[INFO] [stderr]   Downloaded winnow v0.5.15
[INFO] [stderr]   Downloaded toml_edit v0.20.0
[INFO] [stderr]   Downloaded base64 v0.21.4
[INFO] [stderr]   Downloaded sct v0.7.0
[INFO] [stderr]   Downloaded cc v1.0.83
[INFO] [stderr]   Downloaded spin v0.5.2
[INFO] [stderr]   Downloaded js-sys v0.3.64
[INFO] [stderr]   Downloaded bumpalo v3.14.0
[INFO] [stderr]   Downloaded log v0.4.20
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.87
[INFO] [stderr]   Downloaded serde_spanned v0.6.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded serde_json v1.0.107
[INFO] [stderr]   Downloaded unicode-bidi v0.3.13
[INFO] [stderr]   Downloaded unicode-normalization v0.1.22
[INFO] [stderr]   Downloaded url v2.4.1
[INFO] [stderr]   Downloaded ureq v2.8.0
[INFO] [stderr]   Downloaded form_urlencoded v1.2.0
[INFO] [stderr]   Downloaded flate2 v1.0.27
[INFO] [stderr]   Downloaded zip v0.6.6
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.87
[INFO] [stderr]   Downloaded percent-encoding v2.3.0
[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] d571d366d90da548bdfd793c8a4e92ad540e4078ebb97cd73583cb4844f4a3e4
[INFO] running `Command { std: "docker" "start" "-a" "d571d366d90da548bdfd793c8a4e92ad540e4078ebb97cd73583cb4844f4a3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d571d366d90da548bdfd793c8a4e92ad540e4078ebb97cd73583cb4844f4a3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d571d366d90da548bdfd793c8a4e92ad540e4078ebb97cd73583cb4844f4a3e4", kill_on_drop: false }`
[INFO] [stdout] d571d366d90da548bdfd793c8a4e92ad540e4078ebb97cd73583cb4844f4a3e4
[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] d924f37aac0ca412989a336ecdf31410298b8c170f9a2436d59c45135bcf97c6
[INFO] running `Command { std: "docker" "start" "-a" "d924f37aac0ca412989a336ecdf31410298b8c170f9a2436d59c45135bcf97c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling rustix v0.38.13
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.7
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling rustls v0.21.7
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]     Checking winnow v0.5.15
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking webpki-roots v0.25.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking base64 v0.21.4
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.6
[INFO] [stderr]     Checking clap v4.4.3
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_edit v0.20.0
[INFO] [stderr]     Checking ureq v2.8.0
[INFO] [stderr]     Checking toml v0.8.0
[INFO] [stderr]     Checking ambient v0.2.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.79s
[INFO] running `Command { std: "docker" "inspect" "d924f37aac0ca412989a336ecdf31410298b8c170f9a2436d59c45135bcf97c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d924f37aac0ca412989a336ecdf31410298b8c170f9a2436d59c45135bcf97c6", kill_on_drop: false }`
[INFO] [stdout] d924f37aac0ca412989a336ecdf31410298b8c170f9a2436d59c45135bcf97c6