[INFO] fetching crate split_ext 0.1.1...
[INFO] checking split_ext-0.1.1 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate split_ext 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate split_ext 0.1.1 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate split_ext 0.1.1
[INFO] finished tweaking crates.io crate split_ext 0.1.1
[INFO] tweaked toml for crates.io crate split_ext 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8903ce2cb69486f0d03870e9794d2065024b01c59f134068b7a79d4e4ef24cae
[INFO] running `Command { std: "docker" "start" "-a" "8903ce2cb69486f0d03870e9794d2065024b01c59f134068b7a79d4e4ef24cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8903ce2cb69486f0d03870e9794d2065024b01c59f134068b7a79d4e4ef24cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8903ce2cb69486f0d03870e9794d2065024b01c59f134068b7a79d4e4ef24cae", kill_on_drop: false }`
[INFO] [stdout] 8903ce2cb69486f0d03870e9794d2065024b01c59f134068b7a79d4e4ef24cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a67bd8a8e1b345fa09f4bb9ad0b86e06b35ebfd79d3d7496f4f2156905f98bc3
[INFO] running `Command { std: "docker" "start" "-a" "a67bd8a8e1b345fa09f4bb9ad0b86e06b35ebfd79d3d7496f4f2156905f98bc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking rental v0.5.6
[INFO] [stderr]     Checking split_ext v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/lib.rs:163:1
[INFO] [stdout]     |
[INFO] [stdout] 163 | / rental! {
[INFO] [stdout] 164 | |     #[allow(clippy::useless_transmute)]
[INFO] [stdout] 165 | |     mod inner {
[INFO] [stdout] 166 | |         use std::str;
[INFO] [stdout] ...   |
[INFO] [stdout] 187 | |     }
[INFO] [stdout] 188 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `procedural-masquerade` crate
[INFO] [stdout]    --> src/lib.rs:163:1
[INFO] [stdout]     |
[INFO] [stdout] 163 | / rental! {
[INFO] [stdout] 164 | |     #[allow(clippy::useless_transmute)]
[INFO] [stdout] 165 | |     mod inner {
[INFO] [stdout] 166 | |         use std::str;
[INFO] [stdout] ...   |
[INFO] [stdout] 187 | |     }
[INFO] [stdout] 188 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]     = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]     = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.85s
[INFO] running `Command { std: "docker" "inspect" "a67bd8a8e1b345fa09f4bb9ad0b86e06b35ebfd79d3d7496f4f2156905f98bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67bd8a8e1b345fa09f4bb9ad0b86e06b35ebfd79d3d7496f4f2156905f98bc3", kill_on_drop: false }`
[INFO] [stdout] a67bd8a8e1b345fa09f4bb9ad0b86e06b35ebfd79d3d7496f4f2156905f98bc3