[INFO] fetching crate ankiconnect 0.2.0...
[INFO] checking ankiconnect-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ankiconnect 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate ankiconnect 0.2.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ankiconnect 0.2.0
[INFO] finished tweaking crates.io crate ankiconnect 0.2.0
[INFO] tweaked toml for crates.io crate ankiconnect 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding rustls v0.22.3 (latest: v0.23.4)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ureq v2.9.6
[INFO] [stderr]   Downloaded zeroize v1.7.0
[INFO] [stderr]   Downloaded rustls-pki-types v1.4.1
[INFO] [stderr]   Downloaded rustls-webpki v0.102.2
[INFO] [stderr]   Downloaded rustls v0.22.3
[INFO] [stderr]   Downloaded webpki-roots v0.26.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c5bdc81cc68ec694297e9211896a3a6933694d966580dd28b8ab93fcd7f4e5e
[INFO] running `Command { std: "docker" "start" "-a" "8c5bdc81cc68ec694297e9211896a3a6933694d966580dd28b8ab93fcd7f4e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c5bdc81cc68ec694297e9211896a3a6933694d966580dd28b8ab93fcd7f4e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5bdc81cc68ec694297e9211896a3a6933694d966580dd28b8ab93fcd7f4e5e", kill_on_drop: false }`
[INFO] [stdout] 8c5bdc81cc68ec694297e9211896a3a6933694d966580dd28b8ab93fcd7f4e5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcbebe554502238f0ab71943fb13142adb82149bce3120a4dce61b7dcb5849dc
[INFO] running `Command { std: "docker" "start" "-a" "bcbebe554502238f0ab71943fb13142adb82149bce3120a4dce61b7dcb5849dc", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]     Checking ankiconnect v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/requests/create_deck.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct CreateDeckResponse(DeckId);
[INFO] [stdout]    |            ------------------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CreateDeckResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct CreateDeckResponse(());
[INFO] [stdout]    |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/requests/create_deck.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct CreateDeckResponse(DeckId);
[INFO] [stdout]    |            ------------------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CreateDeckResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct CreateDeckResponse(());
[INFO] [stdout]    |                               ~~
[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 4.70s
[INFO] running `Command { std: "docker" "inspect" "bcbebe554502238f0ab71943fb13142adb82149bce3120a4dce61b7dcb5849dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcbebe554502238f0ab71943fb13142adb82149bce3120a4dce61b7dcb5849dc", kill_on_drop: false }`
[INFO] [stdout] bcbebe554502238f0ab71943fb13142adb82149bce3120a4dce61b7dcb5849dc
[INFO] checking ankiconnect-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate ankiconnect 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate ankiconnect 0.2.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ankiconnect 0.2.0
[INFO] finished tweaking crates.io crate ankiconnect 0.2.0
[INFO] tweaked toml for crates.io crate ankiconnect 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f2fb444951c833a3dfe84da59dcc8dfb1d1324b20a1fcf034c5ec01cc07a50d
[INFO] running `Command { std: "docker" "start" "-a" "1f2fb444951c833a3dfe84da59dcc8dfb1d1324b20a1fcf034c5ec01cc07a50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f2fb444951c833a3dfe84da59dcc8dfb1d1324b20a1fcf034c5ec01cc07a50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f2fb444951c833a3dfe84da59dcc8dfb1d1324b20a1fcf034c5ec01cc07a50d", kill_on_drop: false }`
[INFO] [stdout] 1f2fb444951c833a3dfe84da59dcc8dfb1d1324b20a1fcf034c5ec01cc07a50d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7b1099f813c556de420001f7c79f01fb3476f7ca1772032392c4c9e487baf6d
[INFO] running `Command { std: "docker" "start" "-a" "c7b1099f813c556de420001f7c79f01fb3476f7ca1772032392c4c9e487baf6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.7.2/src/inflate/core.rs:1196:9
[INFO] [stdout]      |
[INFO] [stdout] 1196 | /         match state {
[INFO] [stdout] 1197 | |             Start => generate_state!(state, 'state_machine, {
[INFO] [stdout] 1198 | |                 l.bit_buf = 0;
[INFO] [stdout] 1199 | |                 l.num_bits = 0;
[INFO] [stdout] ...    |
[INFO] [stdout] 1741 | |             _ => break TINFLStatus::Failed,
[INFO] [stdout] 1742 | |         };
[INFO] [stdout]      | |_________^ cannot infer type
[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] error: could not compile `miniz_oxide` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c7b1099f813c556de420001f7c79f01fb3476f7ca1772032392c4c9e487baf6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7b1099f813c556de420001f7c79f01fb3476f7ca1772032392c4c9e487baf6d", kill_on_drop: false }`
[INFO] [stdout] c7b1099f813c556de420001f7c79f01fb3476f7ca1772032392c4c9e487baf6d