[INFO] fetching crate smallvec 2.0.0-alpha.12...
[INFO] checking smallvec-2.0.0-alpha.12 against 1.95.0 for pr-155915
[INFO] extracting crate smallvec 2.0.0-alpha.12 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate smallvec 2.0.0-alpha.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate smallvec 2.0.0-alpha.12
[INFO] tweaked toml for crates.io crate smallvec 2.0.0-alpha.12 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate smallvec 2.0.0-alpha.12 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate smallvec 2.0.0-alpha.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded malloc_size_of v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 585b2ef491e6b41b83becf07c5edc9589784f99db5062143c86c59ae4d527957
[INFO] running `Command { std: "docker" "start" "-a" "585b2ef491e6b41b83becf07c5edc9589784f99db5062143c86c59ae4d527957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "585b2ef491e6b41b83becf07c5edc9589784f99db5062143c86c59ae4d527957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585b2ef491e6b41b83becf07c5edc9589784f99db5062143c86c59ae4d527957", kill_on_drop: false }`
[INFO] [stdout] 585b2ef491e6b41b83becf07c5edc9589784f99db5062143c86c59ae4d527957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50838052af1f63cb5c62c1a23c97989e6feaa397b856e4df72cb1f9fdb7e7343
[INFO] running `Command { std: "docker" "start" "-a" "50838052af1f63cb5c62c1a23c97989e6feaa397b856e4df72cb1f9fdb7e7343", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v2.0.0-alpha.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:210:10
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (unsafe { addr_of!(self.inline) }) as *const T
[INFO] [stdout]     |          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:216:10
[INFO] [stdout]     |
[INFO] [stdout] 216 |         (unsafe { addr_of_mut!(self.inline) }) as *mut T
[INFO] [stdout]     |          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smallvec` (bench "bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:210:10
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (unsafe { addr_of!(self.inline) }) as *const T
[INFO] [stdout]     |          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:216:10
[INFO] [stdout]     |
[INFO] [stdout] 216 |         (unsafe { addr_of_mut!(self.inline) }) as *mut T
[INFO] [stdout]     |          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "50838052af1f63cb5c62c1a23c97989e6feaa397b856e4df72cb1f9fdb7e7343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50838052af1f63cb5c62c1a23c97989e6feaa397b856e4df72cb1f9fdb7e7343", kill_on_drop: false }`
[INFO] [stdout] 50838052af1f63cb5c62c1a23c97989e6feaa397b856e4df72cb1f9fdb7e7343
