[INFO] fetching crate penguin-app 0.2.6...
[INFO] checking penguin-app-0.2.6 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate penguin-app 0.2.6 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate penguin-app 0.2.6 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 penguin-app 0.2.6
[INFO] finished tweaking crates.io crate penguin-app 0.2.6
[INFO] tweaked toml for crates.io crate penguin-app 0.2.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate penguin-app 0.2.6 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 uuid v1.6.1
[INFO] [stderr]   Downloaded http-range v0.1.5
[INFO] [stderr]   Downloaded hyper-tungstenite v0.8.0
[INFO] [stderr]   Downloaded alloc-stdlib v0.2.1
[INFO] [stderr]   Downloaded tokio-tungstenite v0.17.1
[INFO] [stderr]   Downloaded infer v0.15.0
[INFO] [stderr]   Downloaded bunt-macros v0.2.5
[INFO] [stderr]   Downloaded litrs v0.2.3
[INFO] [stderr]   Downloaded tungstenite v0.17.2
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.2
[INFO] [stderr]   Downloaded bunt v0.2.6
[INFO] [stderr]   Downloaded filetime v0.2.16
[INFO] [stderr]   Downloaded open v2.1.3
[INFO] [stderr]   Downloaded alloc-no-stdlib v2.0.3
[INFO] [stderr]   Downloaded penguin v0.1.8
[INFO] [stderr]   Downloaded brotli v3.3.4
[INFO] [stderr]   Downloaded openssl-src v111.20.0+1.1.1o
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9794757ae27ef776598ecacaf0676242c0214204b9d567c68e9afdc73c4f0733
[INFO] running `Command { std: "docker" "start" "-a" "9794757ae27ef776598ecacaf0676242c0214204b9d567c68e9afdc73c4f0733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9794757ae27ef776598ecacaf0676242c0214204b9d567c68e9afdc73c4f0733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9794757ae27ef776598ecacaf0676242c0214204b9d567c68e9afdc73c4f0733", kill_on_drop: false }`
[INFO] [stdout] 9794757ae27ef776598ecacaf0676242c0214204b9d567c68e9afdc73c4f0733
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 590a79ddacf496eb79c03ed0dd5fb3dfc67fbc54f0f72b8964871747cd1a715e
[INFO] running `Command { std: "docker" "start" "-a" "590a79ddacf496eb79c03ed0dd5fb3dfc67fbc54f0f72b8964871747cd1a715e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking cfb v0.7.3
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling penguin v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking filetime v0.2.16
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking infer v0.15.0
[INFO] [stderr]     Checking http-range v0.1.5
[INFO] [stderr]     Checking open v2.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling bunt-macros v0.2.5
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking bunt v0.2.6
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tungstenite v0.17.2
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-tungstenite v0.17.1
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking hyper-tungstenite v0.8.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking penguin-app v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.79s
[INFO] running `Command { std: "docker" "inspect" "590a79ddacf496eb79c03ed0dd5fb3dfc67fbc54f0f72b8964871747cd1a715e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590a79ddacf496eb79c03ed0dd5fb3dfc67fbc54f0f72b8964871747cd1a715e", kill_on_drop: false }`
[INFO] [stdout] 590a79ddacf496eb79c03ed0dd5fb3dfc67fbc54f0f72b8964871747cd1a715e
[INFO] checking penguin-app-0.2.6 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate penguin-app 0.2.6 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate penguin-app 0.2.6 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate penguin-app 0.2.6
[INFO] finished tweaking crates.io crate penguin-app 0.2.6
[INFO] tweaked toml for crates.io crate penguin-app 0.2.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate penguin-app 0.2.6 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2f57999a5308c337266b56c97a727433ad27ea1991377a4ef45f80876dcd068
[INFO] running `Command { std: "docker" "start" "-a" "c2f57999a5308c337266b56c97a727433ad27ea1991377a4ef45f80876dcd068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2f57999a5308c337266b56c97a727433ad27ea1991377a4ef45f80876dcd068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f57999a5308c337266b56c97a727433ad27ea1991377a4ef45f80876dcd068", kill_on_drop: false }`
[INFO] [stdout] c2f57999a5308c337266b56c97a727433ad27ea1991377a4ef45f80876dcd068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12bf2bdeb60915b6246f30a6775f85f43a970cbf418aef72dfe517ed6cb404d8
[INFO] running `Command { std: "docker" "start" "-a" "12bf2bdeb60915b6246f30a6775f85f43a970cbf418aef72dfe517ed6cb404d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]     Checking cfb v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling penguin v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/penguin-0.1.8/build.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             Err(e)?;
[INFO] [stdout]    |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 49 |             Err::<T, std::io::Error>(e)?;
[INFO] [stdout]    |                +++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr] error: could not compile `penguin` (build script) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "12bf2bdeb60915b6246f30a6775f85f43a970cbf418aef72dfe517ed6cb404d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12bf2bdeb60915b6246f30a6775f85f43a970cbf418aef72dfe517ed6cb404d8", kill_on_drop: false }`
[INFO] [stdout] 12bf2bdeb60915b6246f30a6775f85f43a970cbf418aef72dfe517ed6cb404d8