[INFO] fetching crate regulus 0.0.10...
[INFO] checking regulus-0.0.10 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate regulus 0.0.10 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate regulus 0.0.10
[INFO] finished tweaking crates.io crate regulus 0.0.10
[INFO] tweaked toml for crates.io crate regulus 0.0.10 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate regulus 0.0.10 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate regulus 0.0.10 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8c91da49dfa583696627bb99ae197e2803fea92bf43dccd0a6cf60c38aa88f0
[INFO] running `Command { std: "docker" "start" "-a" "e8c91da49dfa583696627bb99ae197e2803fea92bf43dccd0a6cf60c38aa88f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8c91da49dfa583696627bb99ae197e2803fea92bf43dccd0a6cf60c38aa88f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c91da49dfa583696627bb99ae197e2803fea92bf43dccd0a6cf60c38aa88f0", kill_on_drop: false }`
[INFO] [stdout] e8c91da49dfa583696627bb99ae197e2803fea92bf43dccd0a6cf60c38aa88f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ed022b3f35a1a640797f8ee09419043a81dfd6c1e258cf061ad1e5dbd2eb03c
[INFO] running `Command { std: "docker" "start" "-a" "6ed022b3f35a1a640797f8ee09419043a81dfd6c1e258cf061ad1e5dbd2eb03c", kill_on_drop: false }`
[INFO] [stderr]     Checking regulus v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/builtins/list.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn str_or_slice(&self) -> Result<StrOrSlice> {
[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] 23 |     fn str_or_slice(&self) -> Result<StrOrSlice<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/builtins/list.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn str_or_slice(&self) -> Result<StrOrSlice> {
[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] 23 |     fn str_or_slice(&self) -> Result<StrOrSlice<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "6ed022b3f35a1a640797f8ee09419043a81dfd6c1e258cf061ad1e5dbd2eb03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed022b3f35a1a640797f8ee09419043a81dfd6c1e258cf061ad1e5dbd2eb03c", kill_on_drop: false }`
[INFO] [stdout] 6ed022b3f35a1a640797f8ee09419043a81dfd6c1e258cf061ad1e5dbd2eb03c