[INFO] cloning repository https://github.com/artichoke/artichoke
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/artichoke/artichoke" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartichoke%2Fartichoke", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartichoke%2Fartichoke'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52436007685ecc1518bb737332f5f8feca5d2244
[INFO] checking artichoke/artichoke against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartichoke%2Fartichoke" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/artichoke/artichoke 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] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/artichoke/artichoke
[INFO] finished tweaking git repo https://github.com/artichoke/artichoke
[INFO] tweaked toml for git repo https://github.com/artichoke/artichoke written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/artichoke/artichoke 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 sysdir v1.2.2
[INFO] [stderr]   Downloaded rustyline v14.0.0
[INFO] [stderr]   Downloaded posix-space v1.0.4
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[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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "37028376b8d8f608d92cf11b7d8c071e68cb4ec66a626fc3665089d4b7ad9266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37028376b8d8f608d92cf11b7d8c071e68cb4ec66a626fc3665089d4b7ad9266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37028376b8d8f608d92cf11b7d8c071e68cb4ec66a626fc3665089d4b7ad9266", kill_on_drop: false }`
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[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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "e76bd5f7735c04901104431b8d54622f0d23d24a833864de159c10840dda8e7a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]     Checking raw-parts v2.0.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking posix-space v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling libloading v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling bindgen v0.69.4
[INFO] [stderr]     Checking focaccia v1.4.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]     Checking rand_mt v4.2.2
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling clang-sys v1.7.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking scolapasta-strbuf v1.0.0 (/opt/rustwide/workdir/scolapasta-strbuf)
[INFO] [stderr]     Checking artichoke-core v0.13.0 (/opt/rustwide/workdir/artichoke-core)
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]     Checking base64 v0.22.0
[INFO] [stderr]     Checking bytecount v0.6.7
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
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[INFO] [stderr]     Checking smallvec v1.13.2
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[INFO] [stderr]     Checking scolapasta-string-escape v0.3.0 (/opt/rustwide/workdir/scolapasta-string-escape)
[INFO] [stderr]     Checking qed v1.6.1
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[INFO] [stderr]     Checking spinoso-securerandom v0.2.0 (/opt/rustwide/workdir/spinoso-securerandom)
[INFO] [stderr]     Checking spinoso-math v0.3.0 (/opt/rustwide/workdir/spinoso-math)
[INFO] [stderr]     Checking scolapasta-int-parse v0.2.2 (/opt/rustwide/workdir/scolapasta-int-parse)
[INFO] [stderr]     Checking spinoso-env v0.2.0 (/opt/rustwide/workdir/spinoso-env)
[INFO] [stderr]     Checking spinoso-array v0.10.0 (/opt/rustwide/workdir/spinoso-array)
[INFO] [stderr]     Checking spinoso-symbol v0.4.0 (/opt/rustwide/workdir/spinoso-symbol)
[INFO] [stderr]     Checking spinoso-string v0.25.0 (/opt/rustwide/workdir/spinoso-string)
[INFO] [stderr]     Checking tzdb_data v0.1.2
[INFO] [stderr]     Checking spinoso-exception v0.1.0 (/opt/rustwide/workdir/spinoso-exception)
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking artichoke-load-path v0.1.0 (/opt/rustwide/workdir/artichoke-load-path)
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking mezzaluna-type-registry v2.0.0 (/opt/rustwide/workdir/mezzaluna-type-registry)
[INFO] [stderr]     Checking intaglio v1.9.1
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking artichoke-repl-history v1.0.0 (/opt/rustwide/workdir/artichoke-repl-history)
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]    Compiling artichoke v0.1.0-pre.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking mezzaluna-loaded-features v0.10.0 (/opt/rustwide/workdir/mezzaluna-loaded-features)
[INFO] [stderr]     Checking mezzaluna-load-path v0.1.0 (/opt/rustwide/workdir/mezzaluna-load-path)
[INFO] [stderr]     Checking scolapasta-fixable v0.1.0 (/opt/rustwide/workdir/scolapasta-fixable)
[INFO] [stdout] warning: the item `Path` is imported redundantly
[INFO] [stdout]    --> mezzaluna-load-path/src/ruby_core.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     use std::path::Path;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 159 |
[INFO] [stdout] 160 |     use super::*;
[INFO] [stdout]     |         -------- the item `Path` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env` is imported redundantly
[INFO] [stdout]    --> mezzaluna-load-path/src/rubylib.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 221 |     use std::env;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     use super::*;
[INFO] [stdout]     |         -------- the item `env` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `OsStr` is imported redundantly
[INFO] [stdout]    --> mezzaluna-load-path/src/rubylib.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     use std::ffi::OsStr;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     use super::*;
[INFO] [stdout]     |         -------- the item `OsStr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking rustyline v14.0.0
[INFO] [stderr]    Compiling onig_sys v69.8.1
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking tzdb v0.6.1
[INFO] [stderr]     Checking artichoke-readline v1.2.0 (/opt/rustwide/workdir/artichoke-readline)
[INFO] [stderr]     Checking spinoso-time v0.8.0 (/opt/rustwide/workdir/spinoso-time)
[INFO] [stdout] warning: the item `OnceLock` is imported redundantly
[INFO] [stdout]    --> spinoso-time/src/time/tzrs/offset.rs:396:9
[INFO] [stdout]     |
[INFO] [stdout] 396 |     use std::sync::OnceLock;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 401 |     use super::*;
[INFO] [stdout]     |         -------- the item `OnceLock` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `LocalTimeType` is imported redundantly
[INFO] [stdout]    --> spinoso-time/src/time/tzrs/offset.rs:399:14
[INFO] [stdout]     |
[INFO] [stdout] 399 |     use tz::{LocalTimeType, TimeZone};
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 400 |
[INFO] [stdout] 401 |     use super::*;
[INFO] [stdout]     |         -------- the item `LocalTimeType` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TimeError` is imported redundantly
[INFO] [stdout]    --> spinoso-time/src/time/tzrs/offset.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 401 |     use super::*;
[INFO] [stdout]     |         -------- the item `TimeError` is already imported here
[INFO] [stdout] 402 |     use crate::tzrs::error::TimeError;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking onig v6.4.0
[INFO] [stderr]     Checking spinoso-regexp v0.5.0 (/opt/rustwide/workdir/spinoso-regexp)
[INFO] [stderr]    Compiling artichoke-backend v0.24.1 (/opt/rustwide/workdir/artichoke-backend)
[INFO] [stderr] warning: artichoke-backend@0.24.1: Compiler version doesn't include clang or GCC: "cc" "--version"
[INFO] [stdout] warning: the item `HeapAllocatedData` is imported redundantly
[INFO] [stdout]   --> artichoke-backend/src/extn/core/random/mod.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 | use crate::convert::{implicitly_convert_to_int, HeapAllocatedData};
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 | use crate::extn::prelude::*;
[INFO] [stdout]    |     ----------------------- the item `HeapAllocatedData` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> artichoke-backend/src/extn/core/string/ffi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> artichoke-backend/src/extn/core/string/trampoline.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]     --> artichoke-backend/src/extn/core/string/trampoline.rs:1278:67
[INFO] [stdout]      |
[INFO] [stdout] 1278 |     let replacement = super::String::with_bytes_and_encoding(buf, super::Encoding::Utf8);
[INFO] [stdout]      |                                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> artichoke-backend/src/lib.rs:18:9
[INFO] [stdout]      |
[INFO] [stdout] 18   | #![warn(unused_qualifications)]
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1278 -     let replacement = super::String::with_bytes_and_encoding(buf, super::Encoding::Utf8);
[INFO] [stdout] 1278 +     let replacement = super::String::with_bytes_and_encoding(buf, Encoding::Utf8);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HeapAllocatedData` is imported redundantly
[INFO] [stdout]   --> artichoke-backend/src/extn/core/time/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::convert::HeapAllocatedData;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 | use crate::extn::prelude::*;
[INFO] [stdout]    |     ----------------------- the item `HeapAllocatedData` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]  --> artichoke-backend/src/extn/stdlib/base64/mod.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let spec = crate::module::Spec::new(interp, "Base64", BASE64_CSTR, None)?;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]   |
[INFO] [stdout] 9 -     let spec = crate::module::Spec::new(interp, "Base64", BASE64_CSTR, None)?;
[INFO] [stdout] 9 +     let spec = module::Spec::new(interp, "Base64", BASE64_CSTR, None)?;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]  --> artichoke-backend/src/module.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::AsRef;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `AsRef` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `StandardError` is imported redundantly
[INFO] [stdout]    --> artichoke-backend/src/class.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |     use spinoso_exception::StandardError;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 294 |     use crate::test::prelude::*;
[INFO] [stdout]     |         ----------------------- the item `StandardError` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HeapAllocatedData` is imported redundantly
[INFO] [stdout]   --> artichoke-backend/src/extn/core/random/mod.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 | use crate::convert::{implicitly_convert_to_int, HeapAllocatedData};
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 | use crate::extn::prelude::*;
[INFO] [stdout]    |     ----------------------- the item `HeapAllocatedData` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> artichoke-backend/src/extn/core/string/ffi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> artichoke-backend/src/extn/core/string/trampoline.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]     --> artichoke-backend/src/extn/core/string/trampoline.rs:1278:67
[INFO] [stdout]      |
[INFO] [stdout] 1278 |     let replacement = super::String::with_bytes_and_encoding(buf, super::Encoding::Utf8);
[INFO] [stdout]      |                                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> artichoke-backend/src/lib.rs:18:9
[INFO] [stdout]      |
[INFO] [stdout] 18   | #![warn(unused_qualifications)]
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1278 -     let replacement = super::String::with_bytes_and_encoding(buf, super::Encoding::Utf8);
[INFO] [stdout] 1278 +     let replacement = super::String::with_bytes_and_encoding(buf, Encoding::Utf8);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HeapAllocatedData` is imported redundantly
[INFO] [stdout]   --> artichoke-backend/src/extn/core/time/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::convert::HeapAllocatedData;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 | use crate::extn::prelude::*;
[INFO] [stdout]    |     ----------------------- the item `HeapAllocatedData` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]  --> artichoke-backend/src/extn/stdlib/base64/mod.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let spec = crate::module::Spec::new(interp, "Base64", BASE64_CSTR, None)?;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]   |
[INFO] [stdout] 9 -     let spec = crate::module::Spec::new(interp, "Base64", BASE64_CSTR, None)?;
[INFO] [stdout] 9 +     let spec = module::Spec::new(interp, "Base64", BASE64_CSTR, None)?;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]  --> artichoke-backend/src/module.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::AsRef;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `AsRef` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MrbGarbageCollection` is imported redundantly
[INFO] [stdout]    --> artichoke-backend/src/value.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     use crate::gc::MrbGarbageCollection;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 376 |     use crate::test::prelude::*;
[INFO] [stdout]     |         ----------------------- the item `MrbGarbageCollection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.92s
[INFO] running `Command { std: "docker" "inspect" "e76bd5f7735c04901104431b8d54622f0d23d24a833864de159c10840dda8e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76bd5f7735c04901104431b8d54622f0d23d24a833864de159c10840dda8e7a", kill_on_drop: false }`
[INFO] [stdout] e76bd5f7735c04901104431b8d54622f0d23d24a833864de159c10840dda8e7a