[INFO] fetching crate dts-core 0.2.7...
[INFO] checking dts-core-0.2.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dts-core 0.2.7 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate dts-core 0.2.7 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 dts-core 0.2.7
[INFO] finished tweaking crates.io crate dts-core 0.2.7
[INFO] tweaked toml for crates.io crate dts-core 0.2.7 written to /workspace/builds/worker-2-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 108 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v3.0.0-rc.7 (latest: v4.5.4)
[INFO] [stderr]       Adding clap_derive v3.0.0-rc.7 (latest: v4.5.4)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding hcl-rs v0.3.3 (latest: v0.16.7)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding os_str_bytes v6.6.1 (latest: v7.0.0)
[INFO] [stderr]       Adding rustls v0.22.3 (latest: v0.23.4)
[INFO] [stderr]       Adding serde-xml-rs v0.5.1 (latest: v0.6.0)
[INFO] [stderr]       Adding serde_qs v0.9.2 (latest: v0.12.0)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (latest: v0.9.34+deprecated)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding textwrap v0.14.2 (latest: v0.16.1)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 pathdiff v0.2.1
[INFO] [stderr]   Downloaded ureq v2.9.6
[INFO] [stderr]   Downloaded hcl-rs v0.3.3
[INFO] [stderr]   Downloaded json5 v0.4.1
[INFO] [stderr]   Downloaded clap_derive v3.0.0-rc.7
[INFO] [stderr]   Downloaded serde_qs v0.9.2
[INFO] [stderr]   Downloaded clap v3.0.0-rc.7
[INFO] [stderr]   Downloaded rustls v0.22.3
[INFO] [stderr]   Downloaded rustls-webpki v0.102.2
[INFO] [stderr]   Downloaded webpki-roots v0.26.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 924f406b043403f7b55d0dee823330de75762f55e1fade2cbb7fafdbb53c3745
[INFO] running `Command { std: "docker" "start" "-a" "924f406b043403f7b55d0dee823330de75762f55e1fade2cbb7fafdbb53c3745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "924f406b043403f7b55d0dee823330de75762f55e1fade2cbb7fafdbb53c3745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924f406b043403f7b55d0dee823330de75762f55e1fade2cbb7fafdbb53c3745", kill_on_drop: false }`
[INFO] [stdout] 924f406b043403f7b55d0dee823330de75762f55e1fade2cbb7fafdbb53c3745
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4deb91bee23017ee1d8fe19a9423166949086c1782265cc078fadf2ed9eab382
[INFO] running `Command { std: "docker" "start" "-a" "4deb91bee23017ee1d8fe19a9423166949086c1782265cc078fadf2ed9eab382", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking xml-rs v0.8.20
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking ring v0.17.8
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking serde-xml-rs v0.5.1
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_qs v0.9.2
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking hcl-rs v0.3.3
[INFO] [stderr]    Compiling clap_derive v3.0.0-rc.7
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]     Checking clap v3.0.0-rc.7
[INFO] [stderr]     Checking dts-core v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]   --> src/value.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait ValueExt {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn is_empty(&self) -> bool;
[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: method `is_empty` is never used
[INFO] [stdout]   --> src/value.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait ValueExt {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn is_empty(&self) -> bool;
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.74s
[INFO] running `Command { std: "docker" "inspect" "4deb91bee23017ee1d8fe19a9423166949086c1782265cc078fadf2ed9eab382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4deb91bee23017ee1d8fe19a9423166949086c1782265cc078fadf2ed9eab382", kill_on_drop: false }`
[INFO] [stdout] 4deb91bee23017ee1d8fe19a9423166949086c1782265cc078fadf2ed9eab382