[INFO] fetching crate smallvec-stableunion 0.6.10...
[INFO] checking smallvec-stableunion-0.6.10 against 1.55.0 for beta-1.56-3
[INFO] extracting crate smallvec-stableunion 0.6.10 into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate smallvec-stableunion 0.6.10 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smallvec-stableunion 0.6.10
[INFO] finished tweaking crates.io crate smallvec-stableunion 0.6.10
[INFO] tweaked toml for crates.io crate smallvec-stableunion 0.6.10 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--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-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b86b81207501f1cca37c676eb249f63a7abb7b8b91ff779fd070b8a05ea448e3
[INFO] running `Command { std: "docker" "start" "-a" "b86b81207501f1cca37c676eb249f63a7abb7b8b91ff779fd070b8a05ea448e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b86b81207501f1cca37c676eb249f63a7abb7b8b91ff779fd070b8a05ea448e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b86b81207501f1cca37c676eb249f63a7abb7b8b91ff779fd070b8a05ea448e3", kill_on_drop: false }`
[INFO] [stdout] b86b81207501f1cca37c676eb249f63a7abb7b8b91ff779fd070b8a05ea448e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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=warn" "-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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fb810fdc1d2d064c97fbdcba9fdd70be28461010ae62d82723a869477f599aa
[INFO] running `Command { std: "docker" "start" "-a" "6fb810fdc1d2d064c97fbdcba9fdd70be28461010ae62d82723a869477f599aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking smallvec-stableunion v0.6.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:344:54
[INFO] [stdout]     |
[INFO] [stdout] 344 |                 data: SmallVecData::from_inline(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]    --> lib.rs:385:68
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 let mut data = SmallVecData::<A>::from_inline(mem::uninitialized());
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:589:60
[INFO] [stdout]     |
[INFO] [stdout] 589 |                 self.data = SmallVecData::from_inline(mem::uninitialized());
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:655:60
[INFO] [stdout]     |
[INFO] [stdout] 655 |                 self.data = SmallVecData::from_inline(mem::uninitialized());
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:979:44
[INFO] [stdout]     |
[INFO] [stdout] 979 |                     let mut data: A = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]     --> lib.rs:1547:9
[INFO] [stdout]      |
[INFO] [stdout] 1547 |     use std::rc::Rc;
[INFO] [stdout]      |         ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[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 E0554`.
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:344:54
[INFO] [stdout]     |
[INFO] [stdout] 344 |                 data: SmallVecData::from_inline(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]    --> lib.rs:385:68
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 let mut data = SmallVecData::<A>::from_inline(mem::uninitialized());
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:589:60
[INFO] [stdout]     |
[INFO] [stdout] 589 |                 self.data = SmallVecData::from_inline(mem::uninitialized());
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:655:60
[INFO] [stdout]     |
[INFO] [stdout] 655 |                 self.data = SmallVecData::from_inline(mem::uninitialized());
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:979:44
[INFO] [stdout]     |
[INFO] [stdout] 979 |                     let mut data: A = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smallvec-stableunion` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6fb810fdc1d2d064c97fbdcba9fdd70be28461010ae62d82723a869477f599aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb810fdc1d2d064c97fbdcba9fdd70be28461010ae62d82723a869477f599aa", kill_on_drop: false }`
[INFO] [stdout] 6fb810fdc1d2d064c97fbdcba9fdd70be28461010ae62d82723a869477f599aa
