[INFO] fetching crate fatfs 0.3.4...
[INFO] checking fatfs-0.3.4 against beta for pr-78714
[INFO] extracting crate fatfs 0.3.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate fatfs 0.3.4 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 fatfs 0.3.4
[INFO] finished tweaking crates.io crate fatfs 0.3.4
[INFO] tweaked toml for crates.io crate fatfs 0.3.4 written to /workspace/builds/worker-2/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed2ac090850c2804b55a241e071a9b805960ce403e3cf613a280bba540b82e00
[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" "ed2ac090850c2804b55a241e071a9b805960ce403e3cf613a280bba540b82e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed2ac090850c2804b55a241e071a9b805960ce403e3cf613a280bba540b82e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed2ac090850c2804b55a241e071a9b805960ce403e3cf613a280bba540b82e00", kill_on_drop: false }`
[INFO] [stdout] ed2ac090850c2804b55a241e071a9b805960ce403e3cf613a280bba540b82e00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta" "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] 943705043d347ce94f4a7584fa66cb7e32df3250649e7b1a0b4a4232e233a997
[INFO] running `Command { std: "docker" "start" "-a" "943705043d347ce94f4a7584fa66cb7e32df3250649e7b1a0b4a4232e233a997", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking fscommon v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking fatfs v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/read.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn call_with_fs(f: &Fn(FileSystem) -> (), filename: &str) {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(FileSystem) -> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/write.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn call_with_tmp_img(f: &Fn(&str) -> (), filename: &str, test_seq: u32) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/write.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn call_with_fs(f: &Fn(FileSystem) -> (), filename: &str, test_seq: u32) {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(FileSystem) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.70s
[INFO] running `Command { std: "docker" "inspect" "943705043d347ce94f4a7584fa66cb7e32df3250649e7b1a0b4a4232e233a997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "943705043d347ce94f4a7584fa66cb7e32df3250649e7b1a0b4a4232e233a997", kill_on_drop: false }`
[INFO] [stdout] 943705043d347ce94f4a7584fa66cb7e32df3250649e7b1a0b4a4232e233a997