[INFO] fetching crate enum_dispatch 0.3.13...
[INFO] checking enum_dispatch-0.3.13 against 1.95.0 for pr-155915
[INFO] extracting crate enum_dispatch 0.3.13 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate enum_dispatch 0.3.13
[INFO] finished tweaking crates.io crate enum_dispatch 0.3.13
[INFO] tweaked toml for crates.io crate enum_dispatch 0.3.13 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate enum_dispatch 0.3.13 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 106 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.6.1 (available: v0.6.5)
[INFO] [stderr]       Adding serde v1.0.136 (available: v1.0.228)
[INFO] [stderr]       Adding serde_derive v1.0.136 (available: v1.0.228)
[INFO] [stderr]       Adding serde_json v1.0.78 (available: v1.0.149)
[INFO] [stderr]       Adding smol v1.3.0 (available: v2.0.2)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded enum_derive v0.1.7
[INFO] [stderr]   Downloaded async-net v1.8.0
[INFO] [stderr]   Downloaded smol v1.3.0
[INFO] [stderr]   Downloaded serde_json v1.0.78
[INFO] [stderr]   Downloaded rand v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b527530bcf70d64b80fb672109f6321f986a04fbebdc546394abb59525ef3432
[INFO] running `Command { std: "docker" "start" "-a" "b527530bcf70d64b80fb672109f6321f986a04fbebdc546394abb59525ef3432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b527530bcf70d64b80fb672109f6321f986a04fbebdc546394abb59525ef3432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b527530bcf70d64b80fb672109f6321f986a04fbebdc546394abb59525ef3432", kill_on_drop: false }`
[INFO] [stdout] b527530bcf70d64b80fb672109f6321f986a04fbebdc546394abb59525ef3432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 42008d6cb7c3bf0ea6588f29b97f50f002bc6bdb0ee9dd550b8a7ff69deefe5c
[INFO] running `Command { std: "docker" "start" "-a" "42008d6cb7c3bf0ea6588f29b97f50f002bc6bdb0ee9dd550b8a7ff69deefe5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking fastrand v2.4.1
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking event-listener v3.1.0
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking enum_derive v0.1.7
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking piper v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking syn v2.0.117
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking async-executor v1.14.0
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking polling v2.8.0
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking rustix v0.37.28
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking enum_dispatch v0.3.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/supported_generics.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Identifier(proc_macro2::Ident),
[INFO] [stdout]   |     ---------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     Identifier(proc_macro2::Ident),
[INFO] [stdout] 9 +     Identifier(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ConstChar(syn::LitChar),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     ConstChar(syn::LitChar),
[INFO] [stdout] 11 +     ConstChar(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ConstByte(syn::LitByte),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     ConstByte(syn::LitByte),
[INFO] [stdout] 13 +     ConstByte(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ConstInt(syn::LitInt),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     ConstInt(syn::LitInt),
[INFO] [stdout] 15 +     ConstInt(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ConstBool(syn::LitBool),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     ConstBool(syn::LitBool),
[INFO] [stdout] 17 +     ConstBool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking async-io v1.13.0
[INFO] [stderr]     Checking async-net v1.8.0
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/supported_generics.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Identifier(proc_macro2::Ident),
[INFO] [stdout]   |     ---------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     Identifier(proc_macro2::Ident),
[INFO] [stdout] 9 +     Identifier(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ConstChar(syn::LitChar),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     ConstChar(syn::LitChar),
[INFO] [stdout] 11 +     ConstChar(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ConstByte(syn::LitByte),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     ConstByte(syn::LitByte),
[INFO] [stdout] 13 +     ConstByte(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |     ConstInt(syn::LitInt),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     ConstInt(syn::LitInt),
[INFO] [stdout] 15 +     ConstInt(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/supported_generics.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ConstBool(syn::LitBool),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     ConstBool(syn::LitBool),
[INFO] [stdout] 17 +     ConstBool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking async-io v2.6.0
[INFO] [stderr]     Checking async-signal v0.2.14
[INFO] [stderr]     Checking async-process v1.8.1
[INFO] [stderr]     Checking smol v1.3.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/arg_patterns.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enum_dispatch` (test "arg_patterns") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `SomeTrait` is never used
[INFO] [stdout]  --> tests/field_attrs.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait SomeTrait {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/async-trait.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_fn_in_trait` has been stable since `1.75.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_fn_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/async-trait.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` 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 `enum_dispatch` (test "async-trait") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "42008d6cb7c3bf0ea6588f29b97f50f002bc6bdb0ee9dd550b8a7ff69deefe5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42008d6cb7c3bf0ea6588f29b97f50f002bc6bdb0ee9dd550b8a7ff69deefe5c", kill_on_drop: false }`
[INFO] [stdout] 42008d6cb7c3bf0ea6588f29b97f50f002bc6bdb0ee9dd550b8a7ff69deefe5c
