[INFO] cloning repository https://github.com/gurry/efi_app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gurry/efi_app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgurry%2Fefi_app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgurry%2Fefi_app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38a703789d62e5a267ad56beb7e9fb88aeeb5f62
[INFO] checking gurry/efi_app against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgurry%2Fefi_app" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gurry/efi_app on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gurry/efi_app
[INFO] finished tweaking git repo https://github.com/gurry/efi_app
[INFO] tweaked toml for git repo https://github.com/gurry/efi_app written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/gurry/efi_app already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f95f61284eeb3c35ffc954a9e8713f0a279c53b836fbda9f4af37ad379dc68bd
[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" "f95f61284eeb3c35ffc954a9e8713f0a279c53b836fbda9f4af37ad379dc68bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f95f61284eeb3c35ffc954a9e8713f0a279c53b836fbda9f4af37ad379dc68bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95f61284eeb3c35ffc954a9e8713f0a279c53b836fbda9f4af37ad379dc68bd", kill_on_drop: false }`
[INFO] [stdout] f95f61284eeb3c35ffc954a9e8713f0a279c53b836fbda9f4af37ad379dc68bd
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfbb46baccb8411214d58877cd8c60e2821cbad57220cbe6e9c0b565f8426108
[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" "cfbb46baccb8411214d58877cd8c60e2821cbad57220cbe6e9c0b565f8426108", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking efi v0.1.3 (https://github.com/gurry/efi#bd2e6ff3)
[INFO] [stdout] error[E0425]: cannot find function `utf8_char_width` in module `core_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/efi-2217c5ec7f518188/bd2e6ff/src/io/mod.rs:1960:31
[INFO] [stdout]      |
[INFO] [stdout] 1960 |         let width = core_str::utf8_char_width(first_byte);
[INFO] [stdout]      |                               ^^^^^^^^^^^^^^^ not found in `core_str`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]      |
[INFO] [stdout] 278  | use net::dns::name::str::lossy::utf8_char_width;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `efi`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "cfbb46baccb8411214d58877cd8c60e2821cbad57220cbe6e9c0b565f8426108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfbb46baccb8411214d58877cd8c60e2821cbad57220cbe6e9c0b565f8426108", kill_on_drop: false }`
[INFO] [stdout] cfbb46baccb8411214d58877cd8c60e2821cbad57220cbe6e9c0b565f8426108