[INFO] cloning repository https://github.com/soniceroy/RustBlockchain [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/soniceroy/RustBlockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoniceroy%2FRustBlockchain", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoniceroy%2FRustBlockchain'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c33433ce9ef133f14b9a808520b6b0bc275bbc9b [INFO] checking soniceroy/RustBlockchain/c33433ce9ef133f14b9a808520b6b0bc275bbc9b against master#733108b6d4acaa93fe26ae281ea305aacd6aac4e for pr-148967 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoniceroy%2FRustBlockchain" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/soniceroy/RustBlockchain [INFO] finished tweaking git repo https://github.com/soniceroy/RustBlockchain [INFO] tweaked toml for git repo https://github.com/soniceroy/RustBlockchain written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/soniceroy/RustBlockchain on toolchain 733108b6d4acaa93fe26ae281ea305aacd6aac4e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/soniceroy/RustBlockchain 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" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0f807447c1aae6bf0b78a83ead1b0e3bdcaf3bfc535073ac02fef1826188ed78 [INFO] running `Command { std: "docker" "start" "-a" "0f807447c1aae6bf0b78a83ead1b0e3bdcaf3bfc535073ac02fef1826188ed78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0f807447c1aae6bf0b78a83ead1b0e3bdcaf3bfc535073ac02fef1826188ed78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f807447c1aae6bf0b78a83ead1b0e3bdcaf3bfc535073ac02fef1826188ed78", kill_on_drop: false }` [INFO] [stdout] 0f807447c1aae6bf0b78a83ead1b0e3bdcaf3bfc535073ac02fef1826188ed78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 280d58bc42403ef9564f2a170f4d9c581ac226edbb78bc8172b926b78743982a [INFO] running `Command { std: "docker" "start" "-a" "280d58bc42403ef9564f2a170f4d9c581ac226edbb78bc8172b926b78743982a", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Checking blockchain v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error: could not compile `blockchain` (bin "blockchain" test) due to 3 previous errors; 1 warning emitted [INFO] [stdout] error: lifetime may not live long enough [INFO] [stdout] --> src/main.rs:60:3 [INFO] [stdout] | [INFO] [stdout] 50 | impl <'a>Blockchain<'a> { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] ... [INFO] [stdout] 57 | fn new_block(&mut self) { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] ... [INFO] [stdout] 60 | self.chain.push(new_block); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'1` must outlive `'a` [INFO] [stdout] | [INFO] [stdout] = note: requirement occurs because of a mutable reference to `Vec>` [INFO] [stdout] = note: mutable references are invariant over their type parameter [INFO] [stdout] = help: see for more information about variance [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn last_block(&mut self) -> &Block { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 76 | if let Some(last) = self.chain.first() { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] 77 | &last [INFO] [stdout] | ----- returning this value requires that `self.chain` is borrowed for `'1` [INFO] [stdout] ... [INFO] [stdout] 80 | self.new_block(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn last_block(&mut self) -> &Block { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 76 | if let Some(last) = self.chain.first() { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] 77 | &last [INFO] [stdout] | ----- returning this value requires that `self.chain` is borrowed for `'1` [INFO] [stdout] ... [INFO] [stdout] 81 | self.last_block() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `block` [INFO] [stdout] --> src/main.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | fn hash(block: Blockchain) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_block` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stdout] error: lifetime may not live long enough [INFO] [stdout] --> src/main.rs:60:3 [INFO] [stdout] | [INFO] [stdout] 50 | impl <'a>Blockchain<'a> { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] ... [INFO] [stdout] 57 | fn new_block(&mut self) { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] ... [INFO] [stdout] 60 | self.chain.push(new_block); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'1` must outlive `'a` [INFO] [stdout] | [INFO] [stdout] = note: requirement occurs because of a mutable reference to `Vec>` [INFO] [stdout] = note: mutable references are invariant over their type parameter [INFO] [stdout] = help: see for more information about variance [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn last_block(&mut self) -> &Block { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 76 | if let Some(last) = self.chain.first() { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] 77 | &last [INFO] [stdout] | ----- returning this value requires that `self.chain` is borrowed for `'1` [INFO] [stdout] ... [INFO] [stdout] 80 | self.new_block(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn last_block(&mut self) -> &Block { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 76 | if let Some(last) = self.chain.first() { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] 77 | &last [INFO] [stdout] | ----- returning this value requires that `self.chain` is borrowed for `'1` [INFO] [stdout] ... [INFO] [stdout] 81 | self.last_block() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `block` [INFO] [stdout] --> src/main.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | fn hash(block: Blockchain) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_block` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] error: could not compile `blockchain` (bin "blockchain") due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "280d58bc42403ef9564f2a170f4d9c581ac226edbb78bc8172b926b78743982a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "280d58bc42403ef9564f2a170f4d9c581ac226edbb78bc8172b926b78743982a", kill_on_drop: false }` [INFO] [stdout] 280d58bc42403ef9564f2a170f4d9c581ac226edbb78bc8172b926b78743982a