[INFO] fetching crate generic-new 0.2.0...
[INFO] checking generic-new-0.2.0 against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] extracting crate generic-new 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate generic-new 0.2.0 on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate generic-new 0.2.0
[INFO] finished tweaking crates.io crate generic-new 0.2.0
[INFO] tweaked toml for crates.io crate generic-new 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding derive-syn-parse v0.1.5 (available: v0.2.0)
[INFO] [stderr]       Adding derive_more v0.99.19 (available: v2.0.1)
[INFO] [stderr]       Adding pretty_env_logger v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.98)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded single v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16b97af171327be9133092df3dacba86c7fec43283b8ab65c6d312424e8ad698
[INFO] running `Command { std: "docker" "start" "-a" "16b97af171327be9133092df3dacba86c7fec43283b8ab65c6d312424e8ad698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16b97af171327be9133092df3dacba86c7fec43283b8ab65c6d312424e8ad698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b97af171327be9133092df3dacba86c7fec43283b8ab65c6d312424e8ad698", kill_on_drop: false }`
[INFO] [stdout] 16b97af171327be9133092df3dacba86c7fec43283b8ab65c6d312424e8ad698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfea411d8146d330b304e5711e991c741cb99ada347459f4b871827bbb336b40
[INFO] running `Command { std: "docker" "start" "-a" "dfea411d8146d330b304e5711e991c741cb99ada347459f4b871827bbb336b40", kill_on_drop: false }`
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[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking adler2 v2.0.0
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[INFO] [stderr]    Compiling unicode-xid v0.2.6
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[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.24
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[INFO] [stderr]    Compiling proc-macro2 v1.0.93
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[INFO] [stderr]     Checking termcolor v1.4.1
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[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking toml v0.8.20
[INFO] [stderr]    Compiling derive-syn-parse v0.1.5
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking single v1.0.1
[INFO] [stderr]     Checking generic-new v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking trybuild v1.0.103
[INFO] [stdout] warning: use of deprecated trait `single::Single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]  --> src/field.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use single::Single;
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `single::Error::NoElements`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/field.rs:201:36
[INFO] [stdout]     |
[INFO] [stdout] 201 |                     single::Error::NoElements => None,
[INFO] [stdout]     |                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `single::Error::MultipleElements`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/field.rs:202:36
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     single::Error::MultipleElements => {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/field.rs:197:18
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 .single()
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/attributes.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Ignore(Ident),
[INFO] [stdout]    |     ------ ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] 15 |     Ignore(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/attributes.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InputType(Ident, Token![=], Type),
[INFO] [stdout]    |     --------- ^^^^^  ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InputType((), (), Type),
[INFO] [stdout]    |               ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/attributes.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Converter(Ident, Token![=], Expr),
[INFO] [stdout]    |     --------- ^^^^^  ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Converter((), (), Expr),
[INFO] [stdout]    |               ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `single::Single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]  --> src/field.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use single::Single;
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `single::Error::NoElements`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/field.rs:201:36
[INFO] [stdout]     |
[INFO] [stdout] 201 |                     single::Error::NoElements => None,
[INFO] [stdout]     |                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `single::Error::MultipleElements`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/field.rs:202:36
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     single::Error::MultipleElements => {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/field.rs:197:18
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 .single()
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/attributes.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Ignore(Ident),
[INFO] [stdout]    |     ------ ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] 15 |     Ignore(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/attributes.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InputType(Ident, Token![=], Type),
[INFO] [stdout]    |     --------- ^^^^^  ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 17 |     InputType((), (), Type),
[INFO] [stdout]    |               ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/attributes.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Converter(Ident, Token![=], Expr),
[INFO] [stdout]    |     --------- ^^^^^  ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Converter((), (), Expr),
[INFO] [stdout]    |               ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.15s
[INFO] running `Command { std: "docker" "inspect" "dfea411d8146d330b304e5711e991c741cb99ada347459f4b871827bbb336b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfea411d8146d330b304e5711e991c741cb99ada347459f4b871827bbb336b40", kill_on_drop: false }`
[INFO] [stdout] dfea411d8146d330b304e5711e991c741cb99ada347459f4b871827bbb336b40