[INFO] fetching crate hooo 0.3.8...
[INFO] checking hooo-0.3.8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate hooo 0.3.8 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate hooo 0.3.8 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 hooo 0.3.8
[INFO] finished tweaking crates.io crate hooo 0.3.8
[INFO] tweaked toml for crates.io crate hooo 0.3.8 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate hooo 0.3.8 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 piston_meta v2.0.1
[INFO] [stderr]   Downloaded range v1.0.0
[INFO] [stderr]   Downloaded read_token v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7be9e70a018a1845a09201ab76a89a7715c301adc16650bc3fc88e5b37518836
[INFO] running `Command { std: "docker" "start" "-a" "7be9e70a018a1845a09201ab76a89a7715c301adc16650bc3fc88e5b37518836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7be9e70a018a1845a09201ab76a89a7715c301adc16650bc3fc88e5b37518836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be9e70a018a1845a09201ab76a89a7715c301adc16650bc3fc88e5b37518836", kill_on_drop: false }`
[INFO] [stdout] 7be9e70a018a1845a09201ab76a89a7715c301adc16650bc3fc88e5b37518836
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] da1133e347126e52a60f8e6b60eccf26fd76e98dafc5a450fa1709e5ffd23b0d
[INFO] running `Command { std: "docker" "start" "-a" "da1133e347126e52a60f8e6b60eccf26fd76e98dafc5a450fa1709e5ffd23b0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking range v1.0.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking read_token v1.0.0
[INFO] [stderr]     Checking piston_meta v2.0.1
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking hooo v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Range` is imported redundantly
[INFO] [stdout]  --> src/parsing.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Range` is already imported here
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use piston_meta::{syntax_errstr, Convert, Range, Syntax};
[INFO] [stdout]   |                                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MetaCache` is imported redundantly
[INFO] [stdout]  --> src/parsing.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `MetaCache` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 5 | use crate::meta_cache::MetaCache;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Range` is imported redundantly
[INFO] [stdout]  --> src/meta_cache.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Range` is already imported here
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use piston_meta::{Range, MetaData};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]  --> src/meta_cache.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Arc` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Range` is imported redundantly
[INFO] [stdout]  --> src/parsing.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Range` is already imported here
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use piston_meta::{syntax_errstr, Convert, Range, Syntax};
[INFO] [stdout]   |                                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MetaCache` is imported redundantly
[INFO] [stdout]  --> src/parsing.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `MetaCache` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 5 | use crate::meta_cache::MetaCache;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Range` is imported redundantly
[INFO] [stdout]  --> src/meta_cache.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Range` is already imported here
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use piston_meta::{Range, MetaData};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]  --> src/meta_cache.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Arc` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.39s
[INFO] running `Command { std: "docker" "inspect" "da1133e347126e52a60f8e6b60eccf26fd76e98dafc5a450fa1709e5ffd23b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1133e347126e52a60f8e6b60eccf26fd76e98dafc5a450fa1709e5ffd23b0d", kill_on_drop: false }`
[INFO] [stdout] da1133e347126e52a60f8e6b60eccf26fd76e98dafc5a450fa1709e5ffd23b0d