[INFO] fetching crate mini_async_repl 0.2.1...
[INFO] checking mini_async_repl-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate mini_async_repl 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate mini_async_repl 0.2.1 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 mini_async_repl 0.2.1
[INFO] finished tweaking crates.io crate mini_async_repl 0.2.1
[INFO] tweaked toml for crates.io crate mini_async_repl 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate mini_async_repl 0.2.1 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 fid-rs v0.1.1
[INFO] [stderr]   Downloaded louds-rs v0.4.0
[INFO] [stderr]   Downloaded trie-rs v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1c46cfd139c7ac59de313a440d0cab4bc045c8d60affbfdb0c5cd9edbee77607
[INFO] running `Command { std: "docker" "start" "-a" "1c46cfd139c7ac59de313a440d0cab4bc045c8d60affbfdb0c5cd9edbee77607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c46cfd139c7ac59de313a440d0cab4bc045c8d60affbfdb0c5cd9edbee77607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c46cfd139c7ac59de313a440d0cab4bc045c8d60affbfdb0c5cd9edbee77607", kill_on_drop: false }`
[INFO] [stdout] 1c46cfd139c7ac59de313a440d0cab4bc045c8d60affbfdb0c5cd9edbee77607
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 77060fff82c206826367ec8f3c086ae1c3b698b5b65a94a71ecd59b06b5b2911
[INFO] running `Command { std: "docker" "start" "-a" "77060fff82c206826367ec8f3c086ae1c3b698b5b65a94a71ecd59b06b5b2911", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling rustix v0.38.25
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking textwrap v0.15.2
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking fd-lock v3.0.13
[INFO] [stderr]     Checking fid-rs v0.1.1
[INFO] [stderr]     Checking louds-rs v0.4.0
[INFO] [stderr]     Checking trie-rs v0.1.1
[INFO] [stderr]    Compiling rustyline-derive v0.6.0
[INFO] [stderr]     Checking rustyline v9.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking thiserror v1.0.50
[INFO] [stderr]     Checking mini_async_repl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/command.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thiserror` is imported redundantly
[INFO] [stdout]  --> src/command.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use thiserror;
[INFO] [stdout]   |     ^^^^^^^^^ the item `thiserror` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustyline` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rustyline::{self, completion::FilenameCompleter, error::ReadlineError};
[INFO] [stdout]   |                 ^^^^ the item `rustyline` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `shell_words` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use shell_words;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `shell_words` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `textwrap` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use textwrap;
[INFO] [stdout]   |     ^^^^^^^^ the item `textwrap` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thiserror` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use thiserror;
[INFO] [stdout]   |     ^^^^^^^^^ the item `thiserror` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thiserror` is imported redundantly
[INFO] [stdout]  --> src/command.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use thiserror;
[INFO] [stdout]   |     ^^^^^^^^^ the item `thiserror` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustyline` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rustyline::{self, completion::FilenameCompleter, error::ReadlineError};
[INFO] [stdout]   |                 ^^^^ the item `rustyline` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `shell_words` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use shell_words;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `shell_words` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `textwrap` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use textwrap;
[INFO] [stdout]   |     ^^^^^^^^ the item `textwrap` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thiserror` is imported redundantly
[INFO] [stdout]  --> src/repl.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use thiserror;
[INFO] [stdout]   |     ^^^^^^^^^ the item `thiserror` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> examples/mut_state.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::{self, Context};
[INFO] [stdout]   |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> examples/minimal.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::{self, Context};
[INFO] [stdout]   |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> examples/overload.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::{self, Context};
[INFO] [stdout]   |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> examples/from_str.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | use anyhow::{self, Context};
[INFO] [stdout]   |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> examples/errors.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow::{self, Context};
[INFO] [stdout]   |              ^^^^ the item `anyhow` is already defined by prelude
[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] [stdout] warning: 1 warning emitted
[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 4.46s
[INFO] running `Command { std: "docker" "inspect" "77060fff82c206826367ec8f3c086ae1c3b698b5b65a94a71ecd59b06b5b2911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77060fff82c206826367ec8f3c086ae1c3b698b5b65a94a71ecd59b06b5b2911", kill_on_drop: false }`
[INFO] [stdout] 77060fff82c206826367ec8f3c086ae1c3b698b5b65a94a71ecd59b06b5b2911