[INFO] fetching crate blockchain-base 0.1.0... [INFO] checking blockchain-base-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1 [INFO] extracting crate blockchain-base 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate blockchain-base 0.1.0 [INFO] finished tweaking crates.io crate blockchain-base 0.1.0 [INFO] tweaked toml for crates.io crate blockchain-base 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate blockchain-base 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 25 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 04070dfea69af8d6530aa949e5432710994cf34d2ff287959e4e534d2ea692d9 [INFO] running `Command { std: "docker" "start" "-a" "04070dfea69af8d6530aa949e5432710994cf34d2ff287959e4e534d2ea692d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "04070dfea69af8d6530aa949e5432710994cf34d2ff287959e4e534d2ea692d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04070dfea69af8d6530aa949e5432710994cf34d2ff287959e4e534d2ea692d9", kill_on_drop: false }` [INFO] [stdout] 04070dfea69af8d6530aa949e5432710994cf34d2ff287959e4e534d2ea692d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b8c60676ae9b3ab861327383e3034d1080cb3d71b0b9145194529f1e46e43313 [INFO] running `Command { std: "docker" "start" "-a" "b8c60676ae9b3ab861327383e3034d1080cb3d71b0b9145194529f1e46e43313", kill_on_drop: false }` [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Checking openssl v0.10.73 [INFO] [stderr] Checking crypto-hash v0.3.4 [INFO] [stderr] Checking blockchain-base v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/blockchainblock.rs:87:52 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn new(prev_hash: Option, data: &[T], timestamp: u64, nonce: u64) -> BlockchainBlock { [INFO] [stdout] | ^^^^ the lifetime is elided here ------------------ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 87 | pub fn new(prev_hash: Option, data: &[T], timestamp: u64, nonce: u64) -> BlockchainBlock<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/blockchainblock.rs:252:9 [INFO] [stdout] | [INFO] [stdout] 252 | &self.curr_hash.copy_from_slice(&digest); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 252 | let _ = &self.curr_hash.copy_from_slice(&digest); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/blockchainblock.rs:87:52 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn new(prev_hash: Option, data: &[T], timestamp: u64, nonce: u64) -> BlockchainBlock { [INFO] [stdout] | ^^^^ the lifetime is elided here ------------------ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 87 | pub fn new(prev_hash: Option, data: &[T], timestamp: u64, nonce: u64) -> BlockchainBlock<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/blockchainblock.rs:252:9 [INFO] [stdout] | [INFO] [stdout] 252 | &self.curr_hash.copy_from_slice(&digest); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 252 | let _ = &self.curr_hash.copy_from_slice(&digest); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.99s [INFO] running `Command { std: "docker" "inspect" "b8c60676ae9b3ab861327383e3034d1080cb3d71b0b9145194529f1e46e43313", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8c60676ae9b3ab861327383e3034d1080cb3d71b0b9145194529f1e46e43313", kill_on_drop: false }` [INFO] [stdout] b8c60676ae9b3ab861327383e3034d1080cb3d71b0b9145194529f1e46e43313