[INFO] fetching crate tiny-merkle 0.3.0...
[INFO] building tiny-merkle-0.3.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate tiny-merkle 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tiny-merkle 0.3.0
[INFO] finished tweaking crates.io crate tiny-merkle 0.3.0
[INFO] tweaked toml for crates.io crate tiny-merkle 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tiny-merkle 0.3.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tiny-merkle 0.3.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b310688b5b56d10a85cf92ddeb02c209570bcc73e5c58186dc50f28c94f5218
[INFO] running `Command { std: "docker" "start" "-a" "0b310688b5b56d10a85cf92ddeb02c209570bcc73e5c58186dc50f28c94f5218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b310688b5b56d10a85cf92ddeb02c209570bcc73e5c58186dc50f28c94f5218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b310688b5b56d10a85cf92ddeb02c209570bcc73e5c58186dc50f28c94f5218", kill_on_drop: false }`
[INFO] [stdout] 0b310688b5b56d10a85cf92ddeb02c209570bcc73e5c58186dc50f28c94f5218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c499eec439b4f138b691a52d3c2e4d15cbc5dc887c003a47a18ca6951de65e0a
[INFO] running `Command { std: "docker" "start" "-a" "c499eec439b4f138b691a52d3c2e4d15cbc5dc887c003a47a18ca6951de65e0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-merkle v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this arithmetic operation will overflow
[INFO] [stdout]    --> src/merkle.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 |             1 << MAX_TREE_DEPTH
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ attempt to shift left by `32_usize`, which would overflow
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(arithmetic_overflow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: the above error was encountered while instantiating `fn <u8 as alloc::slice::<impl [T]>::to_vec_in::ConvertVec>::to_vec::<alloc::alloc::Global>`
[INFO] [stdout]  --> /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/slice.rs:398:16
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tiny-merkle` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c499eec439b4f138b691a52d3c2e4d15cbc5dc887c003a47a18ca6951de65e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c499eec439b4f138b691a52d3c2e4d15cbc5dc887c003a47a18ca6951de65e0a", kill_on_drop: false }`
[INFO] [stdout] c499eec439b4f138b691a52d3c2e4d15cbc5dc887c003a47a18ca6951de65e0a