[INFO] fetching crate concat_tuple 0.1.1...
[INFO] checking concat_tuple-0.1.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate concat_tuple 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate concat_tuple 0.1.1
[INFO] finished tweaking crates.io crate concat_tuple 0.1.1
[INFO] tweaked toml for crates.io crate concat_tuple 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate concat_tuple 0.1.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate concat_tuple 0.1.1 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6061c585cf0e085e76376e1f49b9f1823e6a07933d2dec1ab80f172a3d3a2df0
[INFO] running `Command { std: "docker" "start" "-a" "6061c585cf0e085e76376e1f49b9f1823e6a07933d2dec1ab80f172a3d3a2df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6061c585cf0e085e76376e1f49b9f1823e6a07933d2dec1ab80f172a3d3a2df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6061c585cf0e085e76376e1f49b9f1823e6a07933d2dec1ab80f172a3d3a2df0", kill_on_drop: false }`
[INFO] [stdout] 6061c585cf0e085e76376e1f49b9f1823e6a07933d2dec1ab80f172a3d3a2df0
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f028eb3eac5099b82ec2143f2d241733ffe01d9ce0c1f6a3503a46ae37e71ae7
[INFO] running `Command { std: "docker" "start" "-a" "f028eb3eac5099b82ec2143f2d241733ffe01d9ce0c1f6a3503a46ae37e71ae7", kill_on_drop: false }`
[INFO] [stderr]     Checking concat_tuple v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/bin/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let t: Product<u32, Product<char, ()>> = TT::default();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t: (u32, char, String) = <<T3 as ProductList>::Tuple>::default();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let t: Product<u32, Product<char, Product<String, ()>>> = t.as_product();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let t: (i32, char, String, i32, u8, f64) = concat_tuple((1, 'c'), (String::new(),1,2u8,3f64));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/main.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let t = c.to_tuple();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Conjunction` is never constructed
[INFO] [stdout]   --> src/bin/main.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Conjunction<T>(T);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `and` and `to_tuple` are never used
[INFO] [stdout]   --> src/bin/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<T> Conjunction<T>{
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] 19 |     fn and<Y>(self,v:Y)-> Conjunction<<T as MergeProductList<Product<Y,()>>>::Output>
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn to_tuple(self)-><T as ProductList>::Tuple where T:ProductList{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show` is never used
[INFO] [stdout]   --> src/bin/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn show(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/bin/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let t: Product<u32, Product<char, ()>> = TT::default();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t: (u32, char, String) = <<T3 as ProductList>::Tuple>::default();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let t: Product<u32, Product<char, Product<String, ()>>> = t.as_product();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let t: (i32, char, String, i32, u8, f64) = concat_tuple((1, 'c'), (String::new(),1,2u8,3f64));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/main.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let t = c.to_tuple();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Conjunction` is never constructed
[INFO] [stdout]   --> src/bin/main.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Conjunction<T>(T);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `and` and `to_tuple` are never used
[INFO] [stdout]   --> src/bin/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<T> Conjunction<T>{
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] 19 |     fn and<Y>(self,v:Y)-> Conjunction<<T as MergeProductList<Product<Y,()>>>::Output>
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn to_tuple(self)-><T as ProductList>::Tuple where T:ProductList{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show` is never used
[INFO] [stdout]   --> src/bin/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn show(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "f028eb3eac5099b82ec2143f2d241733ffe01d9ce0c1f6a3503a46ae37e71ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f028eb3eac5099b82ec2143f2d241733ffe01d9ce0c1f6a3503a46ae37e71ae7", kill_on_drop: false }`
[INFO] [stdout] f028eb3eac5099b82ec2143f2d241733ffe01d9ce0c1f6a3503a46ae37e71ae7