[INFO] cloning repository https://github.com/RFurina/free-tuple
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RFurina/free-tuple" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRFurina%2Ffree-tuple", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRFurina%2Ffree-tuple'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37db401f0e9e88d19b59619059f55c13355a0893
[INFO] checking RFurina/free-tuple against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRFurina%2Ffree-tuple" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/RFurina/free-tuple
[INFO] finished tweaking git repo https://github.com/RFurina/free-tuple
[INFO] tweaked toml for git repo https://github.com/RFurina/free-tuple written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RFurina/free-tuple on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RFurina/free-tuple 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1adabaf42a5e2879056a452fed6f79ecebf86ba4fc564e5fb38ba0c8634c8c8e
[INFO] running `Command { std: "docker" "start" "-a" "1adabaf42a5e2879056a452fed6f79ecebf86ba4fc564e5fb38ba0c8634c8c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1adabaf42a5e2879056a452fed6f79ecebf86ba4fc564e5fb38ba0c8634c8c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1adabaf42a5e2879056a452fed6f79ecebf86ba4fc564e5fb38ba0c8634c8c8e", kill_on_drop: false }`
[INFO] [stdout] 1adabaf42a5e2879056a452fed6f79ecebf86ba4fc564e5fb38ba0c8634c8c8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b34ddffed248fef659b9481fa03ed4ddac34b285e6eb212bd7ea16ec9465f999
[INFO] running `Command { std: "docker" "start" "-a" "b34ddffed248fef659b9481fa03ed4ddac34b285e6eb212bd7ea16ec9465f999", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]     Checking syn v2.0.117
[INFO] [stderr]     Checking tuple-index v0.2.0 (/opt/rustwide/workdir/tuple-index)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tuple-index/src/lib.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 |         }).collect::<Vec<_>>();;
[INFO] [stdout]    |                                ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tuple-index/src/lib.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 |         }).collect::<Vec<_>>();;
[INFO] [stdout]    |                                ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `swapped_generics`
[INFO] [stdout]   --> tuple-index/src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let (swapped_generics, new_tuple_type) = if idx == 0 {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_swapped_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: `tuple_elements`
[INFO] [stdout]   --> tuple-index/src/lib.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let tuple_elements = (0..n).map(|i|{
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_elements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `swapped_generics`
[INFO] [stdout]   --> tuple-index/src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let (swapped_generics, new_tuple_type) = if idx == 0 {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_swapped_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: `tuple_elements`
[INFO] [stdout]   --> tuple-index/src/lib.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let tuple_elements = (0..n).map(|i|{
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_elements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tuple-index/src/lib.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 |         }).collect::<Vec<_>>();;
[INFO] [stdout]    |                                ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `swapped_generics`
[INFO] [stdout]   --> tuple-index/src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let (swapped_generics, new_tuple_type) = if idx == 0 {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_swapped_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: `tuple_elements`
[INFO] [stdout]   --> tuple-index/src/lib.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let tuple_elements = (0..n).map(|i|{
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_elements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking free-tuple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "b34ddffed248fef659b9481fa03ed4ddac34b285e6eb212bd7ea16ec9465f999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34ddffed248fef659b9481fa03ed4ddac34b285e6eb212bd7ea16ec9465f999", kill_on_drop: false }`
[INFO] [stdout] b34ddffed248fef659b9481fa03ed4ddac34b285e6eb212bd7ea16ec9465f999
