[INFO] fetching crate ufotofu 0.6.5...
[INFO] checking ufotofu-0.6.5 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate ufotofu 0.6.5 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate ufotofu 0.6.5
[INFO] finished tweaking crates.io crate ufotofu 0.6.5
[INFO] tweaked toml for crates.io crate ufotofu 0.6.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ufotofu 0.6.5 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ufotofu 0.6.5 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50e117b63ada6517bd81336d2d673793e1df2e4445b0f81b1bda249e8f5098ab
[INFO] running `Command { std: "docker" "start" "-a" "50e117b63ada6517bd81336d2d673793e1df2e4445b0f81b1bda249e8f5098ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50e117b63ada6517bd81336d2d673793e1df2e4445b0f81b1bda249e8f5098ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50e117b63ada6517bd81336d2d673793e1df2e4445b0f81b1bda249e8f5098ab", kill_on_drop: false }`
[INFO] [stdout] 50e117b63ada6517bd81336d2d673793e1df2e4445b0f81b1bda249e8f5098ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22291dfbfb2342a784bce26e925b3e2600b560732e5b11ce624547e6a62df1e1
[INFO] running `Command { std: "docker" "start" "-a" "22291dfbfb2342a784bce26e925b3e2600b560732e5b11ce624547e6a62df1e1", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking pollster v0.4.0
[INFO] [stderr]     Checking ufotofu v0.6.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `invarianted_impl_as_mut`
[INFO] [stdout]   --> src/common_macros.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 | macro_rules! invarianted_impl_as_mut {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `invarianted_impl_as_mut`
[INFO] [stdout]   --> src/common_macros.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 | macro_rules! invarianted_impl_as_mut {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `make_space_even_if_not_needed` and `remaining_slots` are never used
[INFO] [stdout]    --> src/consumer/into_vec.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl<T: Default> IntoVec_<T> {
[INFO] [stdout]     | ---------------------------- methods in this implementation
[INFO] [stdout] 113 |     pub(crate) fn make_space_even_if_not_needed(&mut self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub(crate) fn remaining_slots(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `make_space_even_if_not_needed` and `remaining_slots` are never used
[INFO] [stdout]    --> src/consumer/into_vec.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl<T: Default> IntoVec_<T> {
[INFO] [stdout]     | ---------------------------- methods in this implementation
[INFO] [stdout] 113 |     pub(crate) fn make_space_even_if_not_needed(&mut self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub(crate) fn remaining_slots(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `make_space_even_if_not_needed` and `remaining_slots` are never used
[INFO] [stdout]    --> src/consumer/into_vec.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl<T: Default> IntoVec<T> {
[INFO] [stdout]     | --------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn make_space_even_if_not_needed(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn remaining_slots(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `make_space_even_if_not_needed` and `remaining_slots` are never used
[INFO] [stdout]    --> src/consumer/into_vec.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl<T: Default> IntoVec<T> {
[INFO] [stdout]     | --------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn make_space_even_if_not_needed(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn remaining_slots(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "22291dfbfb2342a784bce26e925b3e2600b560732e5b11ce624547e6a62df1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22291dfbfb2342a784bce26e925b3e2600b560732e5b11ce624547e6a62df1e1", kill_on_drop: false }`
[INFO] [stdout] 22291dfbfb2342a784bce26e925b3e2600b560732e5b11ce624547e6a62df1e1