[INFO] fetching crate utf-8 0.7.5...
[INFO] checking utf-8-0.7.5 against beta for pr-78714
[INFO] extracting crate utf-8 0.7.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate utf-8 0.7.5 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf-8 0.7.5
[INFO] finished tweaking crates.io crate utf-8 0.7.5
[INFO] tweaked toml for crates.io crate utf-8 0.7.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 1b539785a2b348a72c9a151e5918872ee2735e177ef7d72dfee25e279ba481a9
[INFO] running `Command { std: "docker" "start" "-a" "1b539785a2b348a72c9a151e5918872ee2735e177ef7d72dfee25e279ba481a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b539785a2b348a72c9a151e5918872ee2735e177ef7d72dfee25e279ba481a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b539785a2b348a72c9a151e5918872ee2735e177ef7d72dfee25e279ba481a9", kill_on_drop: false }`
[INFO] [stdout] 1b539785a2b348a72c9a151e5918872ee2735e177ef7d72dfee25e279ba481a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f05537599c9c5bdda550679dbacad41a49920ad3902869c8aa19df98e958f600
[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" "f05537599c9c5bdda550679dbacad41a49920ad3902869c8aa19df98e958f600", kill_on_drop: false }`
[INFO] [stderr]     Checking utf-8 v0.7.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read benches/../tests/shared/data.rs: No such file or directory (os error 2)
[INFO] [stdout]  --> benches/from_utf8_lossy.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | mod data;
[INFO] [stdout]   | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utf-8`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f05537599c9c5bdda550679dbacad41a49920ad3902869c8aa19df98e958f600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05537599c9c5bdda550679dbacad41a49920ad3902869c8aa19df98e958f600", kill_on_drop: false }`
[INFO] [stdout] f05537599c9c5bdda550679dbacad41a49920ad3902869c8aa19df98e958f600