[INFO] cloning repository https://github.com/ben-lewington/substruct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ben-lewington/substruct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-lewington%2Fsubstruct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-lewington%2Fsubstruct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b9a36144c086b37954bf33e657912cfcd07e146
[INFO] testing ben-lewington/substruct against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-lewington%2Fsubstruct" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ben-lewington/substruct
[INFO] finished tweaking git repo https://github.com/ben-lewington/substruct
[INFO] tweaked toml for git repo https://github.com/ben-lewington/substruct written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ben-lewington/substruct on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ben-lewington/substruct 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dcc4932655a84676e4dd51ed4831b41b3b739e9091b363b7377532f69209ded
[INFO] running `Command { std: "docker" "start" "-a" "6dcc4932655a84676e4dd51ed4831b41b3b739e9091b363b7377532f69209ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dcc4932655a84676e4dd51ed4831b41b3b739e9091b363b7377532f69209ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dcc4932655a84676e4dd51ed4831b41b3b739e9091b363b7377532f69209ded", kill_on_drop: false }`
[INFO] [stdout] 6dcc4932655a84676e4dd51ed4831b41b3b739e9091b363b7377532f69209ded
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15157b67232cadb86cfdaa27be032a49aaebd2202baf996dd34b27702d35b26d
[INFO] running `Command { std: "docker" "start" "-a" "15157b67232cadb86cfdaa27be032a49aaebd2202baf996dd34b27702d35b26d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling substruct_derive v0.1.0 (/opt/rustwide/workdir/substruct-derive)
[INFO] [stdout] warning: unused variable: `impl_generics`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_impl_generics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty_generics`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty_generics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `where_clause`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:38
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_where_clause`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling substruct v0.1.0 (/opt/rustwide/workdir/substruct)
[INFO] [stdout] warning: trait `Project` is never used
[INFO] [stdout]  --> substruct/src/main.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Project<Sub>
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Immerse` is never used
[INFO] [stdout]   --> substruct/src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait Immerse<Ambient>
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `Command { std: "docker" "inspect" "15157b67232cadb86cfdaa27be032a49aaebd2202baf996dd34b27702d35b26d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15157b67232cadb86cfdaa27be032a49aaebd2202baf996dd34b27702d35b26d", kill_on_drop: false }`
[INFO] [stdout] 15157b67232cadb86cfdaa27be032a49aaebd2202baf996dd34b27702d35b26d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8aef194cce14ba1e66915b355221b20fe036f5ed0f63845c33d868c388f3a5b
[INFO] running `Command { std: "docker" "start" "-a" "a8aef194cce14ba1e66915b355221b20fe036f5ed0f63845c33d868c388f3a5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling substruct_derive v0.1.0 (/opt/rustwide/workdir/substruct-derive)
[INFO] [stdout] warning: unused variable: `impl_generics`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_impl_generics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty_generics`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty_generics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `where_clause`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:38
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_where_clause`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `impl_generics`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_impl_generics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty_generics`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ty_generics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `where_clause`
[INFO] [stdout]   --> substruct-derive/src/lib.rs:62:38
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let (impl_generics, ty_generics, where_clause) = dbg!(generics.clone().split_for_impl());
[INFO] [stdout]    |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_where_clause`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling substruct v0.1.0 (/opt/rustwide/workdir/substruct)
[INFO] [stderr] [substruct-derive/src/lib.rs:62:54] generics.clone().split_for_impl() = (
[INFO] [stderr]     ImplGenerics(
[INFO] [stderr]         Generics {
[INFO] [stderr]             lt_token: None,
[INFO] [stderr]             params: [],
[INFO] [stderr]             gt_token: None,
[INFO] [stderr]             where_clause: None,
[INFO] [stderr]         },
[INFO] [stderr]     ),
[INFO] [stderr]     TypeGenerics(
[INFO] [stderr]         Generics {
[INFO] [stderr]             lt_token: None,
[INFO] [stderr]             params: [],
[INFO] [stderr]             gt_token: None,
[INFO] [stderr]             where_clause: None,
[INFO] [stderr]         },
[INFO] [stderr]     ),
[INFO] [stderr]     None,
[INFO] [stderr] )
[INFO] [stderr] [substruct-derive/src/lib.rs:62:54] generics.clone().split_for_impl() = (
[INFO] [stderr]     ImplGenerics(
[INFO] [stderr]         Generics {
[INFO] [stderr]             lt_token: None,
[INFO] [stderr]             params: [],
[INFO] [stderr]             gt_token: None,
[INFO] [stderr]             where_clause: None,
[INFO] [stderr]         },
[INFO] [stderr]     ),
[INFO] [stderr]     TypeGenerics(
[INFO] [stderr]         Generics {
[INFO] [stderr]             lt_token: None,
[INFO] [stderr]             params: [],
[INFO] [stderr]             gt_token: None,
[INFO] [stderr]             where_clause: None,
[INFO] [stderr]         },
[INFO] [stderr]     ),
[INFO] [stderr]     None,
[INFO] [stderr] )
[INFO] [stderr] [substruct-derive/src/lib.rs:62:54] generics.clone().split_for_impl() = (
[INFO] [stderr]     ImplGenerics(
[INFO] [stderr]         Generics {
[INFO] [stderr]             lt_token: Some(
[INFO] [stderr]                 Lt,
[INFO] [stderr]             ),
[INFO] [stderr]             params: [
[INFO] [stderr]                 GenericParam::Type(
[INFO] [stderr]                     TypeParam {
[INFO] [stderr]                         attrs: [],
[INFO] [stderr]                         ident: Ident {
[INFO] [stderr]                             ident: "T",
[INFO] [stderr]                             span: #0 bytes(1797..1798),
[INFO] [stderr]                         },
[INFO] [stderr]                         colon_token: None,
[INFO] [stderr]                         bounds: [],
[INFO] [stderr]                         eq_token: None,
[INFO] [stderr]                         default: None,
[INFO] [stderr]                     },
[INFO] [stderr]                 ),
[INFO] [stderr]             ],
[INFO] [stderr]             gt_token: Some(
[INFO] [stderr]                 Gt,
[INFO] [stderr]             ),
[INFO] [stderr]             where_clause: None,
[INFO] [stderr]         },
[INFO] [stderr]     ),
[INFO] [stderr]     TypeGenerics(
[INFO] [stderr]         Generics {
[INFO] [stderr]             lt_token: Some(
[INFO] [stderr]                 Lt,
[INFO] [stderr]             ),
[INFO] [stderr]             params: [
[INFO] [stderr]                 GenericParam::Type(
[INFO] [stderr]                     TypeParam {
[INFO] [stderr]                         attrs: [],
[INFO] [stderr]                         ident: Ident {
[INFO] [stderr]                             ident: "T",
[INFO] [stderr]                             span: #0 bytes(1797..1798),
[INFO] [stderr]                         },
[INFO] [stderr]                         colon_token: None,
[INFO] [stderr]                         bounds: [],
[INFO] [stderr]                         eq_token: None,
[INFO] [stderr]                         default: None,
[INFO] [stderr]                     },
[INFO] [stderr]                 ),
[INFO] [stderr]             ],
[INFO] [stderr]             gt_token: Some(
[INFO] [stderr]                 Gt,
[INFO] [stderr]             ),
[INFO] [stderr]             where_clause: None,
[INFO] [stderr]         },
[INFO] [stderr]     ),
[INFO] [stderr]     None,
[INFO] [stderr] )
[INFO] [stdout] error[E0392]: type parameter `T` is never used
[INFO] [stdout]   --> substruct/src/main.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |         struct Sut<T> {
[INFO] [stdout]    |                    ^ unused type parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]    = help: if you intended `T` to be a const parameter, use `const T: /* Type */` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `substruct` (bin "substruct" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a8aef194cce14ba1e66915b355221b20fe036f5ed0f63845c33d868c388f3a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8aef194cce14ba1e66915b355221b20fe036f5ed0f63845c33d868c388f3a5b", kill_on_drop: false }`
[INFO] [stdout] a8aef194cce14ba1e66915b355221b20fe036f5ed0f63845c33d868c388f3a5b