[INFO] fetching crate cpp_map 0.1.1...
[INFO] checking cpp_map-0.1.1 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate cpp_map 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate cpp_map 0.1.1 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpp_map 0.1.1
[INFO] finished tweaking crates.io crate cpp_map 0.1.1
[INFO] tweaked toml for crates.io crate cpp_map 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "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]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 212998e1ab4974f494edd892a505a92a5e54c13ad6e847a2e4f91e53ca885406
[INFO] running `Command { std: "docker" "start" "-a" "212998e1ab4974f494edd892a505a92a5e54c13ad6e847a2e4f91e53ca885406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "212998e1ab4974f494edd892a505a92a5e54c13ad6e847a2e4f91e53ca885406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "212998e1ab4974f494edd892a505a92a5e54c13ad6e847a2e4f91e53ca885406", kill_on_drop: false }`
[INFO] [stdout] 212998e1ab4974f494edd892a505a92a5e54c13ad6e847a2e4f91e53ca885406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfd8f3ddfeb12a7dcd5b8d021aee599860de2c74922cf89f505cfbc4eae11213
[INFO] running `Command { std: "docker" "start" "-a" "cfd8f3ddfeb12a7dcd5b8d021aee599860de2c74922cf89f505cfbc4eae11213", kill_on_drop: false }`
[INFO] [stderr]     Checking cpp_map v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:341:33
[INFO] [stdout]     |
[INFO] [stdout] 341 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 341 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 341 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:351:33
[INFO] [stdout]     |
[INFO] [stdout] 351 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 351 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 351 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:361:33
[INFO] [stdout]     |
[INFO] [stdout] 361 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 361 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 361 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:371:33
[INFO] [stdout]     |
[INFO] [stdout] 371 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 371 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 371 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:381:33
[INFO] [stdout]     |
[INFO] [stdout] 381 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 381 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 381 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:400:33
[INFO] [stdout]     |
[INFO] [stdout] 400 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 400 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 400 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:407:33
[INFO] [stdout]     |
[INFO] [stdout] 407 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 407 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 407 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:416:33
[INFO] [stdout]     |
[INFO] [stdout] 416 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 416 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 416 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:424:33
[INFO] [stdout]     |
[INFO] [stdout] 424 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 424 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 424 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:433:33
[INFO] [stdout]     |
[INFO] [stdout] 433 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 433 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 433 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:448:33
[INFO] [stdout]     |
[INFO] [stdout] 448 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 448 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 448 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:453:33
[INFO] [stdout]     |
[INFO] [stdout] 453 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 453 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 453 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:468:33
[INFO] [stdout]     |
[INFO] [stdout] 468 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 468 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 468 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:473:33
[INFO] [stdout]     |
[INFO] [stdout] 473 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 473 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 473 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/test/mod.rs:489:33
[INFO] [stdout]     |
[INFO] [stdout] 489 |         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `So` does not implement `Clone`, so calling `clone` on `&So` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 489 -         ll.iter().map(|(x, _)| x.clone()).collect::<Vec<_>>(),
[INFO] [stdout] 489 +         ll.iter().map(|(x, _)| x).collect::<Vec<_>>(),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `So`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 10  + #[derive(Clone)]
[INFO] [stdout] 11  | pub struct So {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "cfd8f3ddfeb12a7dcd5b8d021aee599860de2c74922cf89f505cfbc4eae11213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd8f3ddfeb12a7dcd5b8d021aee599860de2c74922cf89f505cfbc4eae11213", kill_on_drop: false }`
[INFO] [stdout] cfd8f3ddfeb12a7dcd5b8d021aee599860de2c74922cf89f505cfbc4eae11213