[INFO] fetching crate mma7660fc 0.1.2...
[INFO] checking mma7660fc-0.1.2 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate mma7660fc 0.1.2 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate mma7660fc 0.1.2 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-61/source/.cargo/config
[INFO] started tweaking crates.io crate mma7660fc 0.1.2
[INFO] finished tweaking crates.io crate mma7660fc 0.1.2
[INFO] tweaked toml for crates.io crate mma7660fc 0.1.2 written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3aabd9eca06420d97f012614ebbe803bfc17740fd9fe179c8c5fb157ff5febc
[INFO] running `Command { std: "docker" "start" "-a" "b3aabd9eca06420d97f012614ebbe803bfc17740fd9fe179c8c5fb157ff5febc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3aabd9eca06420d97f012614ebbe803bfc17740fd9fe179c8c5fb157ff5febc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3aabd9eca06420d97f012614ebbe803bfc17740fd9fe179c8c5fb157ff5febc", kill_on_drop: false }`
[INFO] [stdout] b3aabd9eca06420d97f012614ebbe803bfc17740fd9fe179c8c5fb157ff5febc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52823484ba6fe48604ebd6ff4bb2edaa40e464583fd26893307fb3b54da47654
[INFO] running `Command { std: "docker" "start" "-a" "52823484ba6fe48604ebd6ff4bb2edaa40e464583fd26893307fb3b54da47654", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking embedded-hal v0.2.6
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking embedded-hal v0.1.3
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking mma7660fc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:177:49
[INFO] [stdout]     |
[INFO] [stdout] 177 |         let mut buffer: [u8; 3] = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:60:9
[INFO] [stdout]     |
[INFO] [stdout] 60  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mma7660fc` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "52823484ba6fe48604ebd6ff4bb2edaa40e464583fd26893307fb3b54da47654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52823484ba6fe48604ebd6ff4bb2edaa40e464583fd26893307fb3b54da47654", kill_on_drop: false }`
[INFO] [stdout] 52823484ba6fe48604ebd6ff4bb2edaa40e464583fd26893307fb3b54da47654