[INFO] fetching crate glowdust 0.0.1...
[INFO] checking glowdust-0.0.1 against 1.95.0 for pr-155915
[INFO] extracting crate glowdust 0.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate glowdust 0.0.1
[INFO] finished tweaking crates.io crate glowdust 0.0.1
[INFO] tweaked toml for crates.io crate glowdust 0.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate glowdust 0.0.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate glowdust 0.0.1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fd-lock v4.0.2
[INFO] [stderr]   Downloaded rustyline-derive v0.10.0
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.11
[INFO] [stderr]   Downloaded proc-macro2 v1.0.76
[INFO] [stderr]   Downloaded error-code v3.0.0
[INFO] [stderr]   Downloaded ctor v0.2.6
[INFO] [stderr]   Downloaded serde-json-core v0.5.1
[INFO] [stderr]   Downloaded phf_macros v0.11.2
[INFO] [stderr]   Downloaded clipboard-win v5.0.0
[INFO] [stderr]   Downloaded serde_derive v1.0.195
[INFO] [stderr]   Downloaded io-uring v0.6.3
[INFO] [stderr]   Downloaded rustyline v13.0.0
[INFO] [stderr]   Downloaded serde v1.0.195
[INFO] [stderr]   Downloaded heapless v0.7.16
[INFO] [stderr]   Downloaded rustix v0.38.21
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4697055f049111f862217389a4a85bf493ea45c0e07fb4f9f518b4d31edf55f2
[INFO] running `Command { std: "docker" "start" "-a" "4697055f049111f862217389a4a85bf493ea45c0e07fb4f9f518b4d31edf55f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4697055f049111f862217389a4a85bf493ea45c0e07fb4f9f518b4d31edf55f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4697055f049111f862217389a4a85bf493ea45c0e07fb4f9f518b4d31edf55f2", kill_on_drop: false }`
[INFO] [stdout] 4697055f049111f862217389a4a85bf493ea45c0e07fb4f9f518b4d31edf55f2
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68a11184c6400ad18b8edc8a38ac26ab5fe807030facd28a887af8abc4955a5f
[INFO] running `Command { std: "docker" "start" "-a" "68a11184c6400ad18b8edc8a38ac26ab5fe807030facd28a887af8abc4955a5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling io-uring v0.6.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]     Checking serde-json-core v0.5.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling rustyline-derive v0.10.0
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling ctor v0.2.6
[INFO] [stderr]     Checking rustyline v13.0.0
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking glowdust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/compiler/cursor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::trace`
[INFO] [stdout]  --> src/compiler/parser/parse_state.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::trace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `trace`
[INFO] [stdout]   --> src/compiler/parser/parser.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | use tracing::{error, trace};
[INFO] [stdout]    |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::runtime::disassembler::disassemble_no_lines`
[INFO] [stdout]   --> src/runtime/vm.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::runtime::disassembler::disassemble_no_lines;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stdout]   --> src/compiler/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[ctor::ctor]
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `ctor::ctor` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the attribute macro `ctor::ctor` may come from an old version of the `ctor` crate, try updating your dependency with `cargo update -p ctor`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `ctor::ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/compiler/cursor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::trace`
[INFO] [stdout]  --> src/compiler/parser/parse_state.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::trace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `trace`
[INFO] [stdout]   --> src/compiler/parser/parser.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | use tracing::{error, trace};
[INFO] [stdout]    |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::runtime::disassembler::disassemble_no_lines`
[INFO] [stdout]   --> src/runtime/vm.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::runtime::disassembler::disassemble_no_lines;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector_to_value`
[INFO] [stdout]   --> src/store/mod.rs:91:36
[INFO] [stdout]    |
[INFO] [stdout] 91 |     use crate::{empty_tuple_value, vector_to_value};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/store/csv/uring.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Error, ErrorKind, Read, Result};
[INFO] [stdout]   |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/store/csv/uring.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut source = OpenOptions::new().read(true).open(source)?;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `assumed_offset`
[INFO] [stdout]   --> src/store/csv/uring.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let assumed_offset = cqe.user_data();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_assumed_offset`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glowdust` (lib) due to 1 previous error; 8 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/store/csv/uring.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Error, ErrorKind, Read, Result};
[INFO] [stdout]   |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/store/csv/uring.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut source = OpenOptions::new().read(true).open(source)?;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `assumed_offset`
[INFO] [stdout]   --> src/store/csv/uring.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let assumed_offset = cqe.user_data();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_assumed_offset`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glowdust` (lib test) due to 1 previous error; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "68a11184c6400ad18b8edc8a38ac26ab5fe807030facd28a887af8abc4955a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68a11184c6400ad18b8edc8a38ac26ab5fe807030facd28a887af8abc4955a5f", kill_on_drop: false }`
[INFO] [stdout] 68a11184c6400ad18b8edc8a38ac26ab5fe807030facd28a887af8abc4955a5f
