[INFO] cloning repository https://github.com/carado/utl-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carado/utl-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a35308441250f6e8a06d65fc26e9a908a8dee30a
[INFO] checking carado/utl-rs against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carado/utl-rs on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/carado/utl-rs
[INFO] finished tweaking git repo https://github.com/carado/utl-rs
[INFO] tweaked toml for git repo https://github.com/carado/utl-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/carado/utl-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e20f072898867eab2637955931f8e2d05dd4740dea7855681737827ecb0b4da
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2e20f072898867eab2637955931f8e2d05dd4740dea7855681737827ecb0b4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e20f072898867eab2637955931f8e2d05dd4740dea7855681737827ecb0b4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e20f072898867eab2637955931f8e2d05dd4740dea7855681737827ecb0b4da", kill_on_drop: false }`
[INFO] [stdout] 2e20f072898867eab2637955931f8e2d05dd4740dea7855681737827ecb0b4da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2e55c408a85201714d5345e7c81f559c8fc765120649c6517794c9e7327699e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e2e55c408a85201714d5345e7c81f559c8fc765120649c6517794c9e7327699e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]     Checking utl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::alloc::AllocError`
[INFO] [stdout]  --> src/cvec.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     alloc::{AllocError, Layout, Global as Alloc, AllocRef},
[INFO] [stdout]   |             ^^^^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocError` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocErr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::alloc::AllocError`
[INFO] [stdout]  --> src/cvec.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     alloc::{AllocError, Layout, Global as Alloc, AllocRef},
[INFO] [stdout]   |             ^^^^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocError` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocErr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utl`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e2e55c408a85201714d5345e7c81f559c8fc765120649c6517794c9e7327699e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e55c408a85201714d5345e7c81f559c8fc765120649c6517794c9e7327699e", kill_on_drop: false }`
[INFO] [stdout] e2e55c408a85201714d5345e7c81f559c8fc765120649c6517794c9e7327699e