[INFO] fetching crate cf-dynamic-best 0.1.9...
[INFO] checking cf-dynamic-best-0.1.9 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate cf-dynamic-best 0.1.9 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate cf-dynamic-best 0.1.9 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 cf-dynamic-best 0.1.9
[INFO] finished tweaking crates.io crate cf-dynamic-best 0.1.9
[INFO] tweaked toml for crates.io crate cf-dynamic-best 0.1.9 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate cf-dynamic-best 0.1.9 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 serde_json v1.0.99
[INFO] [stderr]   Downloaded is-terminal v0.4.8
[INFO] [stderr]   Downloaded clap_derive v4.3.2
[INFO] [stderr]   Downloaded serde_yaml v0.9.22
[INFO] [stderr]   Downloaded email-encoding v0.2.0
[INFO] [stderr]   Downloaded clap_builder v4.3.10
[INFO] [stderr]   Downloaded clap v4.3.10
[INFO] [stderr]   Downloaded rustix v0.38.1
[INFO] [stderr]   Downloaded rustix v0.37.21
[INFO] [stderr]   Downloaded syn v2.0.22
[INFO] [stderr]   Downloaded csv v1.2.2
[INFO] [stderr]   Downloaded lettre v0.10.4
[INFO] [stderr]   Downloaded schannel v0.1.21
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.8
[INFO] [stderr]   Downloaded email_address v0.2.4
[INFO] [stderr]   Downloaded quoted_printable v0.4.8
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.63
[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] 820b5c9144aa8967faafe4eec68258ef80038f8ac6d8ed11c3c03d6dd97835e3
[INFO] running `Command { std: "docker" "start" "-a" "820b5c9144aa8967faafe4eec68258ef80038f8ac6d8ed11c3c03d6dd97835e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "820b5c9144aa8967faafe4eec68258ef80038f8ac6d8ed11c3c03d6dd97835e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "820b5c9144aa8967faafe4eec68258ef80038f8ac6d8ed11c3c03d6dd97835e3", kill_on_drop: false }`
[INFO] [stdout] 820b5c9144aa8967faafe4eec68258ef80038f8ac6d8ed11c3c03d6dd97835e3
[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] c922d4cc1c65e21812ed49bd78f665cc66b07b94b3bb7e5a745e8bf91e4cd740
[INFO] running `Command { std: "docker" "start" "-a" "c922d4cc1c65e21812ed49bd78f665cc66b07b94b3bb7e5a745e8bf91e4cd740", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling rustix v0.38.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking email-encoding v0.2.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking quoted_printable v0.4.8
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]     Checking email_address v0.2.4
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking is-terminal v0.4.8
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.10
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling clap_derive v4.3.2
[INFO] [stderr]     Checking clap v4.3.10
[INFO] [stderr]     Checking lettre v0.10.4
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking serde_yaml v0.9.22
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.18
[INFO] [stderr]     Checking cf-dynamic-best v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_yaml` is imported redundantly
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use serde_yaml;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_yaml` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_yaml` is imported redundantly
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use serde_yaml;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_yaml` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.61s
[INFO] running `Command { std: "docker" "inspect" "c922d4cc1c65e21812ed49bd78f665cc66b07b94b3bb7e5a745e8bf91e4cd740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c922d4cc1c65e21812ed49bd78f665cc66b07b94b3bb7e5a745e8bf91e4cd740", kill_on_drop: false }`
[INFO] [stdout] c922d4cc1c65e21812ed49bd78f665cc66b07b94b3bb7e5a745e8bf91e4cd740