[INFO] fetching crate flowc 0.142.0...
[INFO] checking flowc-0.142.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate flowc 0.142.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate flowc 0.142.0 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 flowc 0.142.0
[INFO] finished tweaking crates.io crate flowc 0.142.0
[INFO] tweaked toml for crates.io crate flowc 0.142.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate flowc 0.142.0 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 wax v0.5.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded walkdir v2.3.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.47
[INFO] [stderr]   Downloaded thiserror v1.0.47
[INFO] [stderr]   Downloaded simpath v2.5.0
[INFO] [stderr]   Downloaded serial_test_derive v2.0.0
[INFO] [stderr]   Downloaded pori v0.0.0
[INFO] [stderr]   Downloaded indent_write v2.2.0
[INFO] [stderr]   Downloaded anstream v0.5.0
[INFO] [stderr]   Downloaded errno v0.3.3
[INFO] [stderr]   Downloaded nom-supreme v0.8.0
[INFO] [stderr]   Downloaded termcolor v1.2.0
[INFO] [stderr]   Downloaded anstyle-wincon v2.1.0
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded serde_yaml v0.9.25
[INFO] [stderr]   Downloaded clap_builder v4.4.5
[INFO] [stderr]   Downloaded object v0.32.0
[INFO] [stderr]   Downloaded rustix v0.38.10
[INFO] [stderr]   Downloaded regex-automata v0.3.7
[INFO] [stderr]   Downloaded winnow v0.5.15
[INFO] [stderr]   Downloaded toml_edit v0.20.1
[INFO] [stderr]   Downloaded aho-corasick v1.0.5
[INFO] [stderr]   Downloaded memchr v2.6.2
[INFO] [stderr]   Downloaded regex v1.9.4
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded openssl-sys v0.9.92
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded const_format v0.2.31
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.9
[INFO] [stderr]   Downloaded anstyle v1.0.2
[INFO] [stderr]   Downloaded clap v4.4.5
[INFO] [stderr]   Downloaded flowcore v0.142.0
[INFO] [stderr]   Downloaded libz-sys v1.1.12
[INFO] [stderr]   Downloaded curl-sys v0.4.65+curl-8.2.1
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded const_format_proc_macros v0.2.31
[INFO] [stderr]   Downloaded brownstone v3.0.0
[INFO] [stderr]   Downloaded joinery v2.1.0
[INFO] [stderr]   Downloaded serial_test v2.0.0
[INFO] [stderr]   Downloaded toml v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9393fb336461af9b94b9d0b42cefe5125d5f3e7b843f664623453a04579ad35b
[INFO] running `Command { std: "docker" "start" "-a" "9393fb336461af9b94b9d0b42cefe5125d5f3e7b843f664623453a04579ad35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9393fb336461af9b94b9d0b42cefe5125d5f3e7b843f664623453a04579ad35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9393fb336461af9b94b9d0b42cefe5125d5f3e7b843f664623453a04579ad35b", kill_on_drop: false }`
[INFO] [stdout] 9393fb336461af9b94b9d0b42cefe5125d5f3e7b843f664623453a04579ad35b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7fee6b069e339e51591b25ea53c7971a337c45d8285a55f3b3de5de6dba86970
[INFO] running `Command { std: "docker" "start" "-a" "7fee6b069e339e51591b25ea53c7971a337c45d8285a55f3b3de5de6dba86970", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking memchr v2.6.2
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling rustix v0.38.10
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking object v0.32.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.2
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling openssl-sys v0.9.92
[INFO] [stderr]    Compiling curl-sys v0.4.65+curl-8.2.1
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking winnow v0.5.15
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking brownstone v3.0.0
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.31
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking nom-supreme v0.8.0
[INFO] [stderr]     Checking clap_builder v4.4.5
[INFO] [stderr]     Checking const_format v0.2.31
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking pori v0.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling serial_test_derive v2.0.0
[INFO] [stderr]     Checking clap v4.4.5
[INFO] [stderr]     Checking wax v0.5.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking serial_test v2.0.0
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking toml_edit v0.20.1
[INFO] [stderr]     Checking simpath v2.5.0
[INFO] [stderr]     Checking toml v0.8.1
[INFO] [stderr]     Checking flowcore v0.142.0
[INFO] [stderr]     Checking flowc v0.142.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.24s
[INFO] running `Command { std: "docker" "inspect" "7fee6b069e339e51591b25ea53c7971a337c45d8285a55f3b3de5de6dba86970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fee6b069e339e51591b25ea53c7971a337c45d8285a55f3b3de5de6dba86970", kill_on_drop: false }`
[INFO] [stdout] 7fee6b069e339e51591b25ea53c7971a337c45d8285a55f3b3de5de6dba86970