[INFO] fetching crate front-api 0.0.2...
[INFO] checking front-api-0.0.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate front-api 0.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate front-api 0.0.2 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 front-api 0.0.2
[INFO] finished tweaking crates.io crate front-api 0.0.2
[INFO] tweaked toml for crates.io crate front-api 0.0.2 written to /workspace/builds/worker-0-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]     Updating crates.io index
[INFO] [stderr]      Locking 260 packages
[INFO] [stderr]       Adding ansi-str v0.3.0 (latest: v0.8.0)
[INFO] [stderr]       Adding ansitok v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding arrayvec v0.5.2 (latest: v0.7.4)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
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[INFO] [stderr]       Adding clap v3.2.25 (latest: v4.5.4)
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[INFO] [stderr]       Adding clap_lex v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding dirs v4.0.0 (latest: v5.0.1)
[INFO] [stderr]       Adding dirs-sys v0.3.7 (latest: v0.4.1)
[INFO] [stderr]       Adding encode_unicode v0.3.6 (latest: v1.0.0)
[INFO] [stderr]       Adding form_urlencoded v1.0.1 (latest: v1.2.1)
[INFO] [stderr]       Adding h2 v0.3.26 (latest: v0.4.4)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding http-body v0.4.6 (latest: v1.0.0)
[INFO] [stderr]       Adding hyper v0.14.28 (latest: v1.2.0)
[INFO] [stderr]       Adding hyper-rustls v0.24.2 (latest: v0.27.0)
[INFO] [stderr]       Adding idna v0.2.3 (latest: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding itertools v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding opentelemetry v0.17.0 (latest: v0.22.0)
[INFO] [stderr]       Adding os_str_bytes v6.6.1 (latest: v7.0.0)
[INFO] [stderr]       Adding papergrid v0.5.1 (latest: v0.11.0)
[INFO] [stderr]       Adding parse-display v0.5.5 (latest: v0.9.0)
[INFO] [stderr]       Adding parse-display-derive v0.5.5 (latest: v0.9.0)
[INFO] [stderr]       Adding percent-encoding v2.1.0 (latest: v2.3.1)
[INFO] [stderr]       Adding quick-xml v0.28.2 (latest: v0.31.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[INFO] [stderr]       Adding reqwest v0.11.27 (latest: v0.12.3)
[INFO] [stderr]       Adding reqwest-conditional-middleware v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding reqwest-middleware v0.1.6 (latest: v0.2.5)
[INFO] [stderr]       Adding reqwest-retry v0.1.5 (latest: v0.4.0)
[INFO] [stderr]       Adding reqwest-tracing v0.3.1 (latest: v0.4.8)
[INFO] [stderr]       Adding retry-policies v0.1.2 (latest: v0.3.0)
[INFO] [stderr]       Adding rustls v0.21.10 (latest: v0.23.4)
[INFO] [stderr]       Adding rustls-pemfile v1.0.4 (latest: v2.1.1)
[INFO] [stderr]       Adding rustls-webpki v0.101.7 (latest: v0.102.2)
[INFO] [stderr]       Adding serde_derive_internals v0.26.0 (latest: v0.29.0)
[INFO] [stderr]       Adding serde_with v2.3.3 (latest: v3.7.0)
[INFO] [stderr]       Adding serde_with_macros v2.3.3 (latest: v3.7.0)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (latest: v0.9.34+deprecated)
[INFO] [stderr]       Adding strip-ansi-escapes v0.1.1 (latest: v0.2.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding structmeta v0.1.6 (latest: v0.3.0)
[INFO] [stderr]       Adding structmeta-derive v0.1.6 (latest: v0.3.0)
[INFO] [stderr]       Adding strum v0.24.1 (latest: v0.26.2)
[INFO] [stderr]       Adding strum_macros v0.24.3 (latest: v0.26.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding sync_wrapper v0.1.2 (latest: v1.0.0)
[INFO] [stderr]       Adding system-configuration v0.5.1 (latest: v0.6.0)
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[INFO] [stderr]       Adding tabled v0.8.0 (latest: v0.15.0)
[INFO] [stderr]       Adding tabled_derive v0.4.0 (latest: v0.7.0)
[INFO] [stderr]       Adding tokio-rustls v0.24.1 (latest: v0.26.0)
[INFO] [stderr]       Adding tracing-log v0.1.4 (latest: v0.2.0)
[INFO] [stderr]       Adding tracing-opentelemetry v0.17.4 (latest: v0.23.0)
[INFO] [stderr]       Adding unicase v2.6.0 (latest: v2.7.0)
[INFO] [stderr]       Adding url v2.3.0 (latest: v2.5.0)
[INFO] [stderr]       Adding vte v0.10.1 (latest: v0.13.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding webpki-roots v0.25.4 (latest: v0.26.1)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding winreg v0.50.0 (latest: v0.52.0)
[INFO] [stderr]       Adding yansi v0.5.1 (latest: v1.0.1)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded tabled_derive v0.4.0
[INFO] [stderr]   Downloaded vte_generate_state_changes v0.1.1
[INFO] [stderr]   Downloaded oncemutex v0.1.1
[INFO] [stderr]   Downloaded tabled v0.8.0
[INFO] [stderr]   Downloaded newline-converter v0.3.0
[INFO] [stderr]   Downloaded structmeta-derive v0.1.6
[INFO] [stderr]   Downloaded chrono-humanize v0.2.3
[INFO] [stderr]   Downloaded structmeta v0.1.6
[INFO] [stderr]   Downloaded reqwest-retry v0.1.5
[INFO] [stderr]   Downloaded hyperx v1.4.0
[INFO] [stderr]   Downloaded expectorate v1.1.0
[INFO] [stderr]   Downloaded format_serde_error v0.3.0
[INFO] [stderr]   Downloaded quick-xml v0.28.2
[INFO] [stderr]   Downloaded url v2.3.0
[INFO] [stderr]   Downloaded parse-display-derive v0.5.5
[INFO] [stderr]   Downloaded parse-display v0.5.5
[INFO] [stderr]   Downloaded regex-cache v0.2.1
[INFO] [stderr]   Downloaded reqwest-conditional-middleware v0.1.0
[INFO] [stderr]   Downloaded reqwest-tracing v0.3.1
[INFO] [stderr]   Downloaded ansitok v0.1.0
[INFO] [stderr]   Downloaded ansi-str v0.3.0
[INFO] [stderr]   Downloaded vte v0.10.1
[INFO] [stderr]   Downloaded strip-ansi-escapes v0.1.1
[INFO] [stderr]   Downloaded phonenumber v0.3.3+8.13.9
[INFO] [stderr]   Downloaded papergrid v0.5.1
[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] c483d1b00080b3ad8c2e4b3f64defc8215ed9124a83aa820d636dc664c570216
[INFO] running `Command { std: "docker" "start" "-a" "c483d1b00080b3ad8c2e4b3f64defc8215ed9124a83aa820d636dc664c570216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c483d1b00080b3ad8c2e4b3f64defc8215ed9124a83aa820d636dc664c570216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c483d1b00080b3ad8c2e4b3f64defc8215ed9124a83aa820d636dc664c570216", kill_on_drop: false }`
[INFO] [stdout] c483d1b00080b3ad8c2e4b3f64defc8215ed9124a83aa820d636dc664c570216
[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] 379c141adb5b870278b7c2f9272c677ace4bc6e764f6b6abb616acabb6eed8eb
[INFO] running `Command { std: "docker" "start" "-a" "379c141adb5b870278b7c2f9272c677ace4bc6e764f6b6abb616acabb6eed8eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking ring v0.17.8
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking webpki-roots v0.25.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking task-local-extensions v0.1.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling quick-xml v0.28.2
[INFO] [stderr]    Compiling structmeta-derive v0.1.6
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling schemars v0.8.16
[INFO] [stderr]     Checking bytecount v0.6.7
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]    Compiling hyperx v1.4.0
[INFO] [stderr]     Checking oncemutex v0.1.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling tabled_derive v0.4.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.1
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking newline-converter v0.3.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking ansitok v0.1.0
[INFO] [stderr]     Checking expectorate v1.1.0
[INFO] [stderr]     Checking ansi-str v0.3.0
[INFO] [stderr]     Checking papergrid v0.5.1
[INFO] [stderr]    Compiling structmeta v0.1.6
[INFO] [stderr]     Checking regex-cache v0.2.1
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[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling parse-display-derive v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking pin-project v1.1.5
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[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling serde_with_macros v2.3.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking futures-executor v0.3.30
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[INFO] [stderr]     Checking serde_json v1.0.115
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[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_with v2.3.3
[INFO] [stderr]     Checking tracing-log v0.1.4
[INFO] [stderr]     Checking tracing-opentelemetry v0.17.4
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking format_serde_error v0.3.0
[INFO] [stderr]    Compiling phonenumber v0.3.3+8.13.9
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking retry-policies v0.1.2
[INFO] [stderr]     Checking chrono-humanize v0.2.3
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking reqwest-middleware v0.1.6
[INFO] [stderr]     Checking reqwest-tracing v0.3.1
[INFO] [stderr]     Checking reqwest-retry v0.1.5
[INFO] [stderr]     Checking reqwest-conditional-middleware v0.1.0
[INFO] [stderr]     Checking front-api v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ErrorFormat` is never used
[INFO] [stdout]    --> src/types.rs:395:11
[INFO] [stdout]     |
[INFO] [stdout] 395 |     trait ErrorFormat {
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ErrorFormat` is never used
[INFO] [stdout]    --> src/types.rs:395:11
[INFO] [stdout]     |
[INFO] [stdout] 395 |     trait ErrorFormat {
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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 30.70s
[INFO] running `Command { std: "docker" "inspect" "379c141adb5b870278b7c2f9272c677ace4bc6e764f6b6abb616acabb6eed8eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "379c141adb5b870278b7c2f9272c677ace4bc6e764f6b6abb616acabb6eed8eb", kill_on_drop: false }`
[INFO] [stdout] 379c141adb5b870278b7c2f9272c677ace4bc6e764f6b6abb616acabb6eed8eb