[INFO] fetching crate warn 0.2.2...
[INFO] checking warn-0.2.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate warn 0.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate warn 0.2.2
[INFO] finished tweaking crates.io crate warn 0.2.2
[INFO] tweaked toml for crates.io crate warn 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate warn 0.2.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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 2 packages to latest compatible versions
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.27)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77034d470fbcd4d22472d453828f9c0c626694b28eb7c769d84d678ff334a265
[INFO] running `Command { std: "docker" "start" "-a" "77034d470fbcd4d22472d453828f9c0c626694b28eb7c769d84d678ff334a265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77034d470fbcd4d22472d453828f9c0c626694b28eb7c769d84d678ff334a265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77034d470fbcd4d22472d453828f9c0c626694b28eb7c769d84d678ff334a265", kill_on_drop: false }`
[INFO] [stdout] 77034d470fbcd4d22472d453828f9c0c626694b28eb7c769d84d678ff334a265
[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" "-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] 0f29aedf55e71525232e415a4f0fc2520f1c449a5a041432c8c2bb0dfd0ab0fd
[INFO] running `Command { std: "docker" "start" "-a" "0f29aedf55e71525232e415a4f0fc2520f1c449a5a041432c8c2bb0dfd0ab0fd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking warn v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:66:36
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn rev_map<WF, WT, W, F>(warn: &mut W, fn_: F) -> RevMap<WF, WT, W, F>
[INFO] [stdout]    |                                    ^^^^^^             -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn rev_map<WF, WT, W, F>(warn: &mut W, fn_: F) -> RevMap<'_, WF, WT, W, F>
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:66:36
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn rev_map<WF, WT, W, F>(warn: &mut W, fn_: F) -> RevMap<WF, WT, W, F>
[INFO] [stdout]    |                                    ^^^^^^             -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn rev_map<WF, WT, W, F>(warn: &mut W, fn_: F) -> RevMap<'_, WF, WT, W, F>
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:146:40
[INFO] [stdout]     |
[INFO] [stdout] 146 |         super::closure(&mut |_| panic!(WARNING2)).warn(WARNING);
[INFO] [stdout]     |                                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 146 |         super::closure(&mut |_| panic!("{}", WARNING2)).warn(WARNING);
[INFO] [stdout]     |                                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:151:41
[INFO] [stdout]     |
[INFO] [stdout] 151 |         super::closure(&mut |()| panic!(WARNING2));
[INFO] [stdout]     |                                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 151 |         super::closure(&mut |()| panic!("{}", WARNING2));
[INFO] [stdout]     |                                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "0f29aedf55e71525232e415a4f0fc2520f1c449a5a041432c8c2bb0dfd0ab0fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f29aedf55e71525232e415a4f0fc2520f1c449a5a041432c8c2bb0dfd0ab0fd", kill_on_drop: false }`
[INFO] [stdout] 0f29aedf55e71525232e415a4f0fc2520f1c449a5a041432c8c2bb0dfd0ab0fd