[INFO] fetching crate custom-string 0.3.0...
[INFO] checking custom-string-0.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate custom-string 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate custom-string 0.3.0
[INFO] finished tweaking crates.io crate custom-string 0.3.0
[INFO] tweaked toml for crates.io crate custom-string 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate custom-string 0.3.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate custom-string 0.3.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7522172558fd5548d938e740f475aad00febd7ba590d517b617c2c5c8d92508
[INFO] running `Command { std: "docker" "start" "-a" "b7522172558fd5548d938e740f475aad00febd7ba590d517b617c2c5c8d92508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7522172558fd5548d938e740f475aad00febd7ba590d517b617c2c5c8d92508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7522172558fd5548d938e740f475aad00febd7ba590d517b617c2c5c8d92508", kill_on_drop: false }`
[INFO] [stdout] b7522172558fd5548d938e740f475aad00febd7ba590d517b617c2c5c8d92508
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59b4d8152689706310ae27cc602d6fa66a45e4ed02bdcb00147668b362b82544
[INFO] running `Command { std: "docker" "start" "-a" "59b4d8152689706310ae27cc602d6fa66a45e4ed02bdcb00147668b362b82544", kill_on_drop: false }`
[INFO] [stderr]     Checking custom-string v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:162:27
[INFO] [stdout]     |
[INFO] [stdout] 162 |               pub fn to_ref(&self) -> $ref_struct_name {
[INFO] [stdout]     |                             ^^^^^     ---------------- the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 235 | /     custom_string!(#[doc = "A lowercase string."], Lower, LowerRef, |s: &str| if !s
[INFO] [stdout] 236 | |         .as_bytes()
[INFO] [stdout] 237 | |         .iter()
[INFO] [stdout] 238 | |         .all(|c| c.is_ascii_lowercase())
[INFO] [stdout] ...   |
[INFO] [stdout] 242 | |         Ok(())
[INFO] [stdout] 243 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[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]     = note: this warning originates in the macro `custom_string` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 162 |             pub fn to_ref(&self) -> $ref_struct_name<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "59b4d8152689706310ae27cc602d6fa66a45e4ed02bdcb00147668b362b82544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b4d8152689706310ae27cc602d6fa66a45e4ed02bdcb00147668b362b82544", kill_on_drop: false }`
[INFO] [stdout] 59b4d8152689706310ae27cc602d6fa66a45e4ed02bdcb00147668b362b82544