[INFO] fetching crate tuple_macro 0.2.2...
[INFO] checking tuple_macro-0.2.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate tuple_macro 0.2.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tuple_macro 0.2.2 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tuple_macro 0.2.2
[INFO] finished tweaking crates.io crate tuple_macro 0.2.2
[INFO] tweaked toml for crates.io crate tuple_macro 0.2.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b93a20496766aa343c480a87b17a95cf88b17f8b0df19d24a1bc28cae8651716
[INFO] running `Command { std: "docker" "start" "-a" "b93a20496766aa343c480a87b17a95cf88b17f8b0df19d24a1bc28cae8651716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b93a20496766aa343c480a87b17a95cf88b17f8b0df19d24a1bc28cae8651716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b93a20496766aa343c480a87b17a95cf88b17f8b0df19d24a1bc28cae8651716", kill_on_drop: false }`
[INFO] [stdout] b93a20496766aa343c480a87b17a95cf88b17f8b0df19d24a1bc28cae8651716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail_expr_drop_order" "-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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d5145207ad95c5a93c8867a26afe53f4938d6c83fba5ce3980bb96762a455da
[INFO] running `Command { std: "docker" "start" "-a" "7d5145207ad95c5a93c8867a26afe53f4938d6c83fba5ce3980bb96762a455da", kill_on_drop: false }`
[INFO] [stderr]     Checking tuple_macro v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `from_tup_trait`
[INFO] [stdout]   --> src/lib.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | macro_rules! from_tup_trait {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_fn_ident` is never used
[INFO] [stdout]  --> src/lib.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn from_tup_fn_ident(n: usize) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_type_bound` is never used
[INFO] [stdout]   --> src/lib.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn from_tup_type_bound(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_value_ident` is never used
[INFO] [stdout]   --> src/lib.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn from_tup_value_ident(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_trait_code` is never used
[INFO] [stdout]   --> src/lib.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn from_tup_trait_code(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_impl_code` is never used
[INFO] [stdout]   --> src/lib.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn from_tup_impl_code(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `from_tup_trait`
[INFO] [stdout]   --> src/lib.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | macro_rules! from_tup_trait {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_fn_ident` is never used
[INFO] [stdout]  --> src/lib.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn from_tup_fn_ident(n: usize) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_type_bound` is never used
[INFO] [stdout]   --> src/lib.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn from_tup_type_bound(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_value_ident` is never used
[INFO] [stdout]   --> src/lib.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn from_tup_value_ident(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_trait_code` is never used
[INFO] [stdout]   --> src/lib.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn from_tup_trait_code(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_tup_impl_code` is never used
[INFO] [stdout]   --> src/lib.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn from_tup_impl_code(n: usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "7d5145207ad95c5a93c8867a26afe53f4938d6c83fba5ce3980bb96762a455da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d5145207ad95c5a93c8867a26afe53f4938d6c83fba5ce3980bb96762a455da", kill_on_drop: false }`
[INFO] [stdout] 7d5145207ad95c5a93c8867a26afe53f4938d6c83fba5ce3980bb96762a455da