[INFO] fetching crate carli 0.2.1...
[INFO] checking carli-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate carli 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate carli 0.2.1
[INFO] finished tweaking crates.io crate carli 0.2.1
[INFO] tweaked toml for crates.io crate carli 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate carli 0.2.1 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 crates.io crate carli 0.2.1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5918b0f885ffc441879ece9a71b806f6bf3c7a5f69e2f8dfd831f5bb7717e693
[INFO] running `Command { std: "docker" "start" "-a" "5918b0f885ffc441879ece9a71b806f6bf3c7a5f69e2f8dfd831f5bb7717e693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5918b0f885ffc441879ece9a71b806f6bf3c7a5f69e2f8dfd831f5bb7717e693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5918b0f885ffc441879ece9a71b806f6bf3c7a5f69e2f8dfd831f5bb7717e693", kill_on_drop: false }`
[INFO] [stdout] 5918b0f885ffc441879ece9a71b806f6bf3c7a5f69e2f8dfd831f5bb7717e693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 65ee68755418576ad778e2a4f0435d258f1de3b41a96afbf6e1a4110c750a1cb
[INFO] running `Command { std: "docker" "start" "-a" "65ee68755418576ad778e2a4f0435d258f1de3b41a96afbf6e1a4110c750a1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking carli v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/io.rs:93:14
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn error(&self) -> cell::RefMut<Stream>;
[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] 93 |     fn error(&self) -> cell::RefMut<'_, Stream>;
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:109:14
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn input(&self) -> cell::RefMut<Stream>;
[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] 109 |     fn input(&self) -> cell::RefMut<'_, Stream>;
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:124:15
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn output(&self) -> cell::RefMut<Stream>;
[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] 124 |     fn output(&self) -> cell::RefMut<'_, Stream>;
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:389:14
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn error(&self) -> cell::RefMut<Stream> {
[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] 389 |     fn error(&self) -> cell::RefMut<'_, Stream> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:393:14
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn input(&self) -> cell::RefMut<Stream> {
[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] 393 |     fn input(&self) -> cell::RefMut<'_, Stream> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:397:15
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn output(&self) -> cell::RefMut<Stream> {
[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] 397 |     fn output(&self) -> cell::RefMut<'_, Stream> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.6
[INFO] [stderr]     Checking clap v3.0.9
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> examples/multiple/app/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// The name of the user.
[INFO] [stdout] 30 | |     #[clap(short, long, global = true, default_value = "world")]
[INFO] [stdout] 31 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/multiple/app/mod.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn error(&self) -> std::cell::RefMut<Stream> {
[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] 56 |     fn error(&self) -> std::cell::RefMut<'_, Stream> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/multiple/app/mod.rs:60:14
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn input(&self) -> std::cell::RefMut<Stream> {
[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] 60 |     fn input(&self) -> std::cell::RefMut<'_, Stream> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/multiple/app/mod.rs:64:15
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn output(&self) -> std::cell::RefMut<Stream> {
[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] 64 |     fn output(&self) -> std::cell::RefMut<'_, Stream> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `carli` (example "multiple") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/command.rs:309:18
[INFO] [stdout]     |
[INFO] [stdout] 309 |         fn error(&self) -> cell::RefMut<io::Stream> {
[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] 309 |         fn error(&self) -> cell::RefMut<'_, io::Stream> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/command.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |         fn input(&self) -> cell::RefMut<io::Stream> {
[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] 313 |         fn input(&self) -> cell::RefMut<'_, io::Stream> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/command.rs:317:19
[INFO] [stdout]     |
[INFO] [stdout] 317 |         fn output(&self) -> cell::RefMut<io::Stream> {
[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] 317 |         fn output(&self) -> cell::RefMut<'_, io::Stream> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/io.rs:93:14
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn error(&self) -> cell::RefMut<Stream>;
[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] 93 |     fn error(&self) -> cell::RefMut<'_, Stream>;
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:109:14
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn input(&self) -> cell::RefMut<Stream>;
[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] 109 |     fn input(&self) -> cell::RefMut<'_, Stream>;
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:124:15
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn output(&self) -> cell::RefMut<Stream>;
[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] 124 |     fn output(&self) -> cell::RefMut<'_, Stream>;
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:389:14
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn error(&self) -> cell::RefMut<Stream> {
[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] 389 |     fn error(&self) -> cell::RefMut<'_, Stream> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:393:14
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn input(&self) -> cell::RefMut<Stream> {
[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] 393 |     fn input(&self) -> cell::RefMut<'_, Stream> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io.rs:397:15
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn output(&self) -> cell::RefMut<Stream> {
[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] 397 |     fn output(&self) -> cell::RefMut<'_, Stream> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "65ee68755418576ad778e2a4f0435d258f1de3b41a96afbf6e1a4110c750a1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ee68755418576ad778e2a4f0435d258f1de3b41a96afbf6e1a4110c750a1cb", kill_on_drop: false }`
[INFO] [stdout] 65ee68755418576ad778e2a4f0435d258f1de3b41a96afbf6e1a4110c750a1cb