[INFO] fetching crate block-array-cow 0.1.4...
[INFO] checking block-array-cow-0.1.4 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate block-array-cow 0.1.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate block-array-cow 0.1.4 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate block-array-cow 0.1.4
[INFO] finished tweaking crates.io crate block-array-cow 0.1.4
[INFO] tweaked toml for crates.io crate block-array-cow 0.1.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3dc63ab26c1a95c34421eb1299a9aab0a9b7b911366381b3d279efc009f2e21
[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" "d3dc63ab26c1a95c34421eb1299a9aab0a9b7b911366381b3d279efc009f2e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3dc63ab26c1a95c34421eb1299a9aab0a9b7b911366381b3d279efc009f2e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dc63ab26c1a95c34421eb1299a9aab0a9b7b911366381b3d279efc009f2e21", kill_on_drop: false }`
[INFO] [stdout] d3dc63ab26c1a95c34421eb1299a9aab0a9b7b911366381b3d279efc009f2e21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec02129f807e8d8257302606c734b355f28d82a951a4c3a1669a36bfeb29333a
[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" "ec02129f807e8d8257302606c734b355f28d82a951a4c3a1669a36bfeb29333a", kill_on_drop: false }`
[INFO] [stderr]     Checking block-array-cow v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> tests/rand.rs:106:42
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let mut v: $t = unsafe { ::std::mem::uninitialized() };
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 | / rand_gen_any_impl! {
[INFO] [stdout] 143 | |     i16 i64 isize
[INFO] [stdout] 144 | |     u16 u64 usize
[INFO] [stdout] 145 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> tests/rand.rs:106:42
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let mut v: $t = unsafe { ::std::mem::uninitialized() };
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 | / rand_gen_any_impl! {
[INFO] [stdout] 143 | |     i16 i64 isize
[INFO] [stdout] 144 | |     u16 u64 usize
[INFO] [stdout] 145 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> tests/rand.rs:106:42
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let mut v: $t = unsafe { ::std::mem::uninitialized() };
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 | / rand_gen_any_impl! {
[INFO] [stdout] 143 | |     i16 i64 isize
[INFO] [stdout] 144 | |     u16 u64 usize
[INFO] [stdout] 145 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> tests/rand.rs:106:42
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let mut v: $t = unsafe { ::std::mem::uninitialized() };
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 | / rand_gen_any_impl! {
[INFO] [stdout] 143 | |     i16 i64 isize
[INFO] [stdout] 144 | |     u16 u64 usize
[INFO] [stdout] 145 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "ec02129f807e8d8257302606c734b355f28d82a951a4c3a1669a36bfeb29333a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec02129f807e8d8257302606c734b355f28d82a951a4c3a1669a36bfeb29333a", kill_on_drop: false }`
[INFO] [stdout] ec02129f807e8d8257302606c734b355f28d82a951a4c3a1669a36bfeb29333a