[INFO] cloning repository https://github.com/ByteNybbler/VFCheeser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ByteNybbler/VFCheeser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByteNybbler%2FVFCheeser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByteNybbler%2FVFCheeser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 027c94382ac1261a82339f871bebbe35dabfcca2
[INFO] checking ByteNybbler/VFCheeser against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByteNybbler%2FVFCheeser" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ByteNybbler/VFCheeser
[INFO] finished tweaking git repo https://github.com/ByteNybbler/VFCheeser
[INFO] tweaked toml for git repo https://github.com/ByteNybbler/VFCheeser written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ByteNybbler/VFCheeser on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ByteNybbler/VFCheeser 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eeddf48855d430c555af27a045234e5b073a4a3425b0926d2bfbfe61ab312b26
[INFO] running `Command { std: "docker" "start" "-a" "eeddf48855d430c555af27a045234e5b073a4a3425b0926d2bfbfe61ab312b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eeddf48855d430c555af27a045234e5b073a4a3425b0926d2bfbfe61ab312b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeddf48855d430c555af27a045234e5b073a4a3425b0926d2bfbfe61ab312b26", kill_on_drop: false }`
[INFO] [stdout] eeddf48855d430c555af27a045234e5b073a4a3425b0926d2bfbfe61ab312b26
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8721326eeffbb909cb6941b4738485b6142adf0aff3c82626fb12d3c10ba3b37
[INFO] running `Command { std: "docker" "start" "-a" "8721326eeffbb909cb6941b4738485b6142adf0aff3c82626fb12d3c10ba3b37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking voiceforge_cheeser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `count::*`
[INFO] [stdout]  --> src/macro_assist.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use count::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filter_params::*`
[INFO] [stdout]  --> src/macro_assist.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use filter_params::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main_macro::*`
[INFO] [stdout]  --> src/text_command.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use main_macro::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `count::*`
[INFO] [stdout]  --> src/macro_assist.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use count::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filter_params::*`
[INFO] [stdout]  --> src/macro_assist.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use filter_params::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `main_macro::*`
[INFO] [stdout]  --> src/text_command.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use main_macro::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let stdin = std::io::stdin();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/parse/maybe_parse.rs:23:65
[INFO] [stdout]    |
[INFO] [stdout] 23 |               fn maybe_from_str(s: &str) -> Result<$t, Self::Err> {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 24 | |                 s.parse()
[INFO] [stdout] 25 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout] ...
[INFO] [stdout] 30 |   populate_impl!(impl_maybe_from_str, u8, u16, u32, u64, i8, i16, i32, i64, f32, f64, String);
[INFO] [stdout]    |   ------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_maybe_from_str` which comes from the expansion of the macro `populate_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/parse/maybe_parse.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 s.parse()
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 | populate_impl!(impl_maybe_from_str, u8, u16, u32, u64, i8, i16, i32, i64, f32, f64, String);
[INFO] [stdout]    | ------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_maybe_from_str` which comes from the expansion of the macro `populate_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/text_command.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_str(string: &str, prefix: char) -> Option<TextCommand> {
[INFO] [stdout]    |                             ^^^^                          ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_str(string: &str, prefix: char) -> Option<TextCommand<'_>> {
[INFO] [stdout]    |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/text_command/text_command_arg_iter.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(arguments_text: &str, argument_count: usize) -> TextCommandArgIter {
[INFO] [stdout]    |                                ^^^^                            ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(arguments_text: &str, argument_count: usize) -> TextCommandArgIter<'_> {
[INFO] [stdout]    |                                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `voiceforge_cheeser` (bin "voiceforge_cheeser") due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let stdin = std::io::stdin();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/parse/maybe_parse.rs:23:65
[INFO] [stdout]    |
[INFO] [stdout] 23 |               fn maybe_from_str(s: &str) -> Result<$t, Self::Err> {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 24 | |                 s.parse()
[INFO] [stdout] 25 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout] ...
[INFO] [stdout] 30 |   populate_impl!(impl_maybe_from_str, u8, u16, u32, u64, i8, i16, i32, i64, f32, f64, String);
[INFO] [stdout]    |   ------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_maybe_from_str` which comes from the expansion of the macro `populate_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/parse/maybe_parse.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 s.parse()
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 | populate_impl!(impl_maybe_from_str, u8, u16, u32, u64, i8, i16, i32, i64, f32, f64, String);
[INFO] [stdout]    | ------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_maybe_from_str` which comes from the expansion of the macro `populate_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/text_command.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_str(string: &str, prefix: char) -> Option<TextCommand> {
[INFO] [stdout]    |                             ^^^^                          ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_str(string: &str, prefix: char) -> Option<TextCommand<'_>> {
[INFO] [stdout]    |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/text_command/text_command_arg_iter.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(arguments_text: &str, argument_count: usize) -> TextCommandArgIter {
[INFO] [stdout]    |                                ^^^^                            ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(arguments_text: &str, argument_count: usize) -> TextCommandArgIter<'_> {
[INFO] [stdout]    |                                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `voiceforge_cheeser` (bin "voiceforge_cheeser" test) due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8721326eeffbb909cb6941b4738485b6142adf0aff3c82626fb12d3c10ba3b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8721326eeffbb909cb6941b4738485b6142adf0aff3c82626fb12d3c10ba3b37", kill_on_drop: false }`
[INFO] [stdout] 8721326eeffbb909cb6941b4738485b6142adf0aff3c82626fb12d3c10ba3b37
