[INFO] fetching crate blake2b256-balloon 0.1.0...
[INFO] checking blake2b256-balloon-0.1.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate blake2b256-balloon 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate blake2b256-balloon 0.1.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blake2b256-balloon 0.1.0
[INFO] finished tweaking crates.io crate blake2b256-balloon 0.1.0
[INFO] tweaked toml for crates.io crate blake2b256-balloon 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded balloons v0.1.0
[INFO] [stderr]   Downloaded property v0.2.2
[INFO] [stderr]   Downloaded slices-hack v0.1.1
[INFO] [stderr]   Downloaded slices v0.1.1
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fae410b21c1394a6856f80d0dc5a31991edb2f5a5baee8340fb61ff863cc020
[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" "8fae410b21c1394a6856f80d0dc5a31991edb2f5a5baee8340fb61ff863cc020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fae410b21c1394a6856f80d0dc5a31991edb2f5a5baee8340fb61ff863cc020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fae410b21c1394a6856f80d0dc5a31991edb2f5a5baee8340fb61ff863cc020", kill_on_drop: false }`
[INFO] [stdout] 8fae410b21c1394a6856f80d0dc5a31991edb2f5a5baee8340fb61ff863cc020
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54d52f290639c5bd5fe58d4a2607869046e51bcab8b8fb5c0b934a06f7d5ede9
[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" "54d52f290639c5bd5fe58d4a2607869046e51bcab8b8fb5c0b934a06f7d5ede9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling faster-hex v0.4.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]    Compiling property v0.2.2
[INFO] [stderr]    Compiling slices-hack v0.1.1
[INFO] [stderr]     Checking slices v0.1.1
[INFO] [stderr]     Checking balloons v0.1.0
[INFO] [stderr]     Checking blake2b256-balloon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/kernel.rs:42:39
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut inner: [u64; 4] = mem::uninitialized();
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/kernel.rs:139:44
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let mut inner: [u8; 32] = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/kernel.rs:42:39
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut inner: [u64; 4] = mem::uninitialized();
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/kernel.rs:139:44
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let mut inner: [u8; 32] = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u64: std::convert::From<i32>` is not satisfied
[INFO] [stdout]   --> examples/balloon.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     builder.space_cost(32).time_cost(40).delta(8);
[INFO] [stdout]    |             ^^^^^^^^^^ the trait `std::convert::From<i32>` is not implemented for `u64`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <u64 as std::convert::From<bool>>
[INFO] [stdout]              <u64 as std::convert::From<std::num::NonZeroU64>>
[INFO] [stdout]              <u64 as std::convert::From<u16>>
[INFO] [stdout]              <u64 as std::convert::From<u32>>
[INFO] [stdout]              <u64 as std::convert::From<u8>>
[INFO] [stdout]    = note: required because of the requirements on the impl of `std::convert::Into<u64>` for `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u64: std::convert::From<i32>` is not satisfied
[INFO] [stdout]   --> examples/balloon.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 |     builder.space_cost(32).time_cost(40).delta(8);
[INFO] [stdout]    |                            ^^^^^^^^^ the trait `std::convert::From<i32>` is not implemented for `u64`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <u64 as std::convert::From<bool>>
[INFO] [stdout]              <u64 as std::convert::From<std::num::NonZeroU64>>
[INFO] [stdout]              <u64 as std::convert::From<u16>>
[INFO] [stdout]              <u64 as std::convert::From<u32>>
[INFO] [stdout]              <u64 as std::convert::From<u8>>
[INFO] [stdout]    = note: required because of the requirements on the impl of `std::convert::Into<u64>` for `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u64: std::convert::From<i32>` is not satisfied
[INFO] [stdout]   --> examples/balloon.rs:13:42
[INFO] [stdout]    |
[INFO] [stdout] 13 |     builder.space_cost(32).time_cost(40).delta(8);
[INFO] [stdout]    |                                          ^^^^^ the trait `std::convert::From<i32>` is not implemented for `u64`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <u64 as std::convert::From<bool>>
[INFO] [stdout]              <u64 as std::convert::From<std::num::NonZeroU64>>
[INFO] [stdout]              <u64 as std::convert::From<u16>>
[INFO] [stdout]              <u64 as std::convert::From<u32>>
[INFO] [stdout]              <u64 as std::convert::From<u8>>
[INFO] [stdout]    = note: required because of the requirements on the impl of `std::convert::Into<u64>` for `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blake2b256-balloon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "54d52f290639c5bd5fe58d4a2607869046e51bcab8b8fb5c0b934a06f7d5ede9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54d52f290639c5bd5fe58d4a2607869046e51bcab8b8fb5c0b934a06f7d5ede9", kill_on_drop: false }`
[INFO] [stdout] 54d52f290639c5bd5fe58d4a2607869046e51bcab8b8fb5c0b934a06f7d5ede9