[INFO] fetching crate yubi_opt 0.2.0...
[INFO] checking yubi_opt-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate yubi_opt 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate yubi_opt 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 yubi_opt 0.2.0
[INFO] finished tweaking crates.io crate yubi_opt 0.2.0
[INFO] tweaked toml for crates.io crate yubi_opt 0.2.0 written to /workspace/builds/worker-6-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 66 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding darling v0.14.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_core v0.14.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_macro v0.14.4 (latest: v0.20.8)
[INFO] [stderr]       Adding derive_builder v0.12.0 (latest: v0.20.0)
[INFO] [stderr]       Adding derive_builder_core v0.12.0 (latest: v0.20.0)
[INFO] [stderr]       Adding derive_builder_macro v0.12.0 (latest: v0.20.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding rustls v0.22.3 (latest: v0.23.4)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9ac85faf94b447a2045694d4b80170986a249aec661900745afceca0740cab50
[INFO] running `Command { std: "docker" "start" "-a" "9ac85faf94b447a2045694d4b80170986a249aec661900745afceca0740cab50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ac85faf94b447a2045694d4b80170986a249aec661900745afceca0740cab50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ac85faf94b447a2045694d4b80170986a249aec661900745afceca0740cab50", kill_on_drop: false }`
[INFO] [stdout] 9ac85faf94b447a2045694d4b80170986a249aec661900745afceca0740cab50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c71274c0234bf8c9203ff7e6f00b091cb5d24cab5e05970017b718192c4c7929
[INFO] running `Command { std: "docker" "start" "-a" "c71274c0234bf8c9203ff7e6f00b091cb5d24cab5e05970017b718192c4c7929", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]     Checking ring v0.17.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling derive_builder_core v0.12.0
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]    Compiling derive_builder_macro v0.12.0
[INFO] [stderr]     Checking derive_builder v0.12.0
[INFO] [stderr]     Checking yubi_opt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/yubico_client.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BTreeMap, HashMap};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/yubico_client.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BTreeMap, HashMap};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 3.68s
[INFO] running `Command { std: "docker" "inspect" "c71274c0234bf8c9203ff7e6f00b091cb5d24cab5e05970017b718192c4c7929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c71274c0234bf8c9203ff7e6f00b091cb5d24cab5e05970017b718192c4c7929", kill_on_drop: false }`
[INFO] [stdout] c71274c0234bf8c9203ff7e6f00b091cb5d24cab5e05970017b718192c4c7929
[INFO] checking yubi_opt-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate yubi_opt 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate yubi_opt 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 yubi_opt 0.2.0
[INFO] finished tweaking crates.io crate yubi_opt 0.2.0
[INFO] tweaked toml for crates.io crate yubi_opt 0.2.0 written to /workspace/builds/worker-6-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b6f05b2db407a517df1587ce4ef21d1c804a4bd3b47e7977453d84e4a6f7998d
[INFO] running `Command { std: "docker" "start" "-a" "b6f05b2db407a517df1587ce4ef21d1c804a4bd3b47e7977453d84e4a6f7998d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6f05b2db407a517df1587ce4ef21d1c804a4bd3b47e7977453d84e4a6f7998d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f05b2db407a517df1587ce4ef21d1c804a4bd3b47e7977453d84e4a6f7998d", kill_on_drop: false }`
[INFO] [stdout] b6f05b2db407a517df1587ce4ef21d1c804a4bd3b47e7977453d84e4a6f7998d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 585c65a395d95e0c020930e2df98396679af6f9d1ce15368004f6c692967fdb5
[INFO] running `Command { std: "docker" "start" "-a" "585c65a395d95e0c020930e2df98396679af6f9d1ce15368004f6c692967fdb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking rustls-pki-types v1.4.1
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling rustls v0.22.3
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking crc32fast v1.4.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking base64 v0.21.7
[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] [stderr]     Checking cpufeatures v0.2.12
[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" "585c65a395d95e0c020930e2df98396679af6f9d1ce15368004f6c692967fdb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585c65a395d95e0c020930e2df98396679af6f9d1ce15368004f6c692967fdb5", kill_on_drop: false }`
[INFO] [stdout] 585c65a395d95e0c020930e2df98396679af6f9d1ce15368004f6c692967fdb5