[INFO] fetching crate tnb 0.1.2...
[INFO] checking tnb-0.1.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tnb 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tnb 0.1.2 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 tnb 0.1.2
[INFO] finished tweaking crates.io crate tnb 0.1.2
[INFO] tweaked toml for crates.io crate tnb 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate tnb 0.1.2 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dlv-list v0.2.3
[INFO] [stderr]   Downloaded ordered-multimap v0.3.1
[INFO] [stderr]   Downloaded rust-ini v0.17.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.34
[INFO] [stderr]   Downloaded crc32fast v1.3.0
[INFO] [stderr]   Downloaded syn v1.0.84
[INFO] [stderr]   Downloaded flate2 v1.0.22
[INFO] [stderr]   Downloaded rustls v0.20.2
[INFO] [stderr]   Downloaded serde_json v1.0.73
[INFO] [stderr]   Downloaded webpki-roots v0.22.1
[INFO] [stderr]   Downloaded ureq v2.4.0
[INFO] [stderr]   Downloaded serde v1.0.132
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1886a9084b32139c6a13a1915d5c2ccb15eec23c3178f5dcdc9dbabff8dedcb5
[INFO] running `Command { std: "docker" "start" "-a" "1886a9084b32139c6a13a1915d5c2ccb15eec23c3178f5dcdc9dbabff8dedcb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1886a9084b32139c6a13a1915d5c2ccb15eec23c3178f5dcdc9dbabff8dedcb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1886a9084b32139c6a13a1915d5c2ccb15eec23c3178f5dcdc9dbabff8dedcb5", kill_on_drop: false }`
[INFO] [stdout] 1886a9084b32139c6a13a1915d5c2ccb15eec23c3178f5dcdc9dbabff8dedcb5
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c569444f87e9d2ea5781fbdbc93fc0f06910fa72281e0d5c0a7c7bb386ee4b09
[INFO] running `Command { std: "docker" "start" "-a" "c569444f87e9d2ea5781fbdbc93fc0f06910fa72281e0d5c0a7c7bb386ee4b09", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking dlv-list v0.2.3
[INFO] [stderr]     Checking ordered-multimap v0.3.1
[INFO] [stderr]     Checking rust-ini v0.17.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls v0.20.2
[INFO] [stderr]     Checking webpki-roots v0.22.1
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking tnb v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]   --> src/main.rs:7:21
[INFO] [stdout]    |
[INFO] [stdout] 7  | use std::io::{self, BufRead};
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 | use std::io::prelude::*;
[INFO] [stdout]    |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]   --> src/main.rs:7:21
[INFO] [stdout]    |
[INFO] [stdout] 7  | use std::io::{self, BufRead};
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 | use std::io::prelude::*;
[INFO] [stdout]    |     ------------------- the item `BufRead` is already imported here
[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 5.68s
[INFO] running `Command { std: "docker" "inspect" "c569444f87e9d2ea5781fbdbc93fc0f06910fa72281e0d5c0a7c7bb386ee4b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c569444f87e9d2ea5781fbdbc93fc0f06910fa72281e0d5c0a7c7bb386ee4b09", kill_on_drop: false }`
[INFO] [stdout] c569444f87e9d2ea5781fbdbc93fc0f06910fa72281e0d5c0a7c7bb386ee4b09
[INFO] checking tnb-0.1.2 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate tnb 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tnb 0.1.2 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 tnb 0.1.2
[INFO] finished tweaking crates.io crate tnb 0.1.2
[INFO] tweaked toml for crates.io crate tnb 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate tnb 0.1.2 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 08d250f4619a417dd99ad9eaaabb0605e8b54f5fb7a0f670de6cdb341d389e69
[INFO] running `Command { std: "docker" "start" "-a" "08d250f4619a417dd99ad9eaaabb0605e8b54f5fb7a0f670de6cdb341d389e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08d250f4619a417dd99ad9eaaabb0605e8b54f5fb7a0f670de6cdb341d389e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d250f4619a417dd99ad9eaaabb0605e8b54f5fb7a0f670de6cdb341d389e69", kill_on_drop: false }`
[INFO] [stdout] 08d250f4619a417dd99ad9eaaabb0605e8b54f5fb7a0f670de6cdb341d389e69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 29c88d52ef6267ab983ad683b7a672cf3a11f2cfd6a914bdace04bb78ecfe3c6
[INFO] running `Command { std: "docker" "start" "-a" "29c88d52ef6267ab983ad683b7a672cf3a11f2cfd6a914bdace04bb78ecfe3c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.4.4/src/inflate/core.rs:1060:9
[INFO] [stdout]      |
[INFO] [stdout] 1060 | /         match state {
[INFO] [stdout] 1061 | |             Start => generate_state!(state, 'state_machine, {
[INFO] [stdout] 1062 | |                 l.bit_buf = 0;
[INFO] [stdout] 1063 | |                 l.num_bits = 0;
[INFO] [stdout] ...    |
[INFO] [stdout] 1592 | |             _ => break TINFLStatus::Failed,
[INFO] [stdout] 1593 | |         };
[INFO] [stdout]      | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dirs-sys v0.3.6
[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 rand_core v0.6.3
[INFO] [stderr]     Checking dirs v4.0.0
[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" "29c88d52ef6267ab983ad683b7a672cf3a11f2cfd6a914bdace04bb78ecfe3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c88d52ef6267ab983ad683b7a672cf3a11f2cfd6a914bdace04bb78ecfe3c6", kill_on_drop: false }`
[INFO] [stdout] 29c88d52ef6267ab983ad683b7a672cf3a11f2cfd6a914bdace04bb78ecfe3c6