[INFO] fetching crate microstack 0.0.7...
[INFO] checking microstack-0.0.7 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate microstack 0.0.7 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate microstack 0.0.7 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate microstack 0.0.7
[INFO] finished tweaking crates.io crate microstack 0.0.7
[INFO] tweaked toml for crates.io crate microstack 0.0.7 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d34d1a78424cbf3542aab51271dd0613f70fd2ace243638a4a6d58864bab8ef
[INFO] running `Command { std: "docker" "start" "-a" "4d34d1a78424cbf3542aab51271dd0613f70fd2ace243638a4a6d58864bab8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d34d1a78424cbf3542aab51271dd0613f70fd2ace243638a4a6d58864bab8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d34d1a78424cbf3542aab51271dd0613f70fd2ace243638a4a6d58864bab8ef", kill_on_drop: false }`
[INFO] [stdout] 4d34d1a78424cbf3542aab51271dd0613f70fd2ace243638a4a6d58864bab8ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be513c08ed59e5e905255d6a60edf5c2368ea54088a3fbc955ccbe276901db77
[INFO] running `Command { std: "docker" "start" "-a" "be513c08ed59e5e905255d6a60edf5c2368ea54088a3fbc955ccbe276901db77", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]     Checking microstack v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stdout] error[E0133]: call to unsafe function `microstack::stack::<impl Stack<V, N>>::push_unchecked` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> benches/push.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             s.push_unchecked(i);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `microstack::stack::<impl Stack<V, N>>::pop_unchecked` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> benches/push.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             s.pop_unchecked();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `microstack::stack::<impl Stack<V, N>>::push_unchecked` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> benches/push.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             s.push_unchecked(i);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `microstack::stack::<impl Stack<V, N>>::pop_unchecked` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> benches/push.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             s.pop_unchecked();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microstack` (bench "push") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "be513c08ed59e5e905255d6a60edf5c2368ea54088a3fbc955ccbe276901db77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be513c08ed59e5e905255d6a60edf5c2368ea54088a3fbc955ccbe276901db77", kill_on_drop: false }`
[INFO] [stdout] be513c08ed59e5e905255d6a60edf5c2368ea54088a3fbc955ccbe276901db77
