[INFO] cloning repository https://github.com/TimWillebrands/rust-byo-database
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TimWillebrands/rust-byo-database" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimWillebrands%2Frust-byo-database", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimWillebrands%2Frust-byo-database'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bc1c5dfdeba22587d79436a2e131de185effa0a
[INFO] checking TimWillebrands/rust-byo-database against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimWillebrands%2Frust-byo-database" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TimWillebrands/rust-byo-database
[INFO] finished tweaking git repo https://github.com/TimWillebrands/rust-byo-database
[INFO] tweaked toml for git repo https://github.com/TimWillebrands/rust-byo-database written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TimWillebrands/rust-byo-database on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TimWillebrands/rust-byo-database 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e
[INFO] running `Command { std: "docker" "start" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking byodb-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:560:13
[INFO] [stdout]     |
[INFO] [stdout] 560 |         let mut new = BNode {
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/db.rs:554:9
[INFO] [stdout]     |
[INFO] [stdout] 554 |         node: &BNode,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/db.rs:555:9
[INFO] [stdout]     |
[INFO] [stdout] 555 |         idx: u16,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/db.rs:556:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |         key: &[u8],
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/db.rs:557:9
[INFO] [stdout]     |
[INFO] [stdout] 557 |         val: &[u8],
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `root` is never read
[INFO] [stdout]    --> src/db.rs:526:5
[INFO] [stdout]     |
[INFO] [stdout] 524 | pub struct BTree {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 525 |     // pointer (a nonzero page number)
[INFO] [stdout] 526 |     root: u64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]   --> src/db.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |         data.resize(required_size.into(), 0);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 34 -         data.resize(required_size.into(), 0);
[INFO] [stdout] 34 +         data.resize(required_size, 0);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 34 -         data.resize(required_size.into(), 0);
[INFO] [stdout] 34 +         data.resize(<usize as Into<_>>::into(required_size), 0);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]   --> src/db.rs:67:26
[INFO] [stdout]    |
[INFO] [stdout] 67 |         self.data.resize(required_size.into(), 0);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 67 -         self.data.resize(required_size.into(), 0);
[INFO] [stdout] 67 +         self.data.resize(required_size, 0);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 67 -         self.data.resize(required_size.into(), 0);
[INFO] [stdout] 67 +         self.data.resize(<usize as Into<_>>::into(required_size), 0);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `byodb-rust` (lib test) due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:560:13
[INFO] [stdout]     |
[INFO] [stdout] 560 |         let mut new = BNode {
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/db.rs:554:9
[INFO] [stdout]     |
[INFO] [stdout] 554 |         node: &BNode,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/db.rs:555:9
[INFO] [stdout]     |
[INFO] [stdout] 555 |         idx: u16,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/db.rs:556:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |         key: &[u8],
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/db.rs:557:9
[INFO] [stdout]     |
[INFO] [stdout] 557 |         val: &[u8],
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BTREE_MAX_KEY_SIZE` is never used
[INFO] [stdout]  --> src/db.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const BTREE_MAX_KEY_SIZE: u32 = 1000;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BTREE_MAX_VAL_SIZE` is never used
[INFO] [stdout]  --> src/db.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BTREE_MAX_VAL_SIZE: u32 = 3000;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `root` is never read
[INFO] [stdout]    --> src/db.rs:526:5
[INFO] [stdout]     |
[INFO] [stdout] 524 | pub struct BTree {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 525 |     // pointer (a nonzero page number)
[INFO] [stdout] 526 |     root: u64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]   --> src/db.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |         data.resize(required_size.into(), 0);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 34 -         data.resize(required_size.into(), 0);
[INFO] [stdout] 34 +         data.resize(required_size, 0);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 34 -         data.resize(required_size.into(), 0);
[INFO] [stdout] 34 +         data.resize(<usize as Into<_>>::into(required_size), 0);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]   --> src/db.rs:67:26
[INFO] [stdout]    |
[INFO] [stdout] 67 |         self.data.resize(required_size.into(), 0);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 67 -         self.data.resize(required_size.into(), 0);
[INFO] [stdout] 67 +         self.data.resize(required_size, 0);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 67 -         self.data.resize(required_size.into(), 0);
[INFO] [stdout] 67 +         self.data.resize(<usize as Into<_>>::into(required_size), 0);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `byodb-rust` (lib) due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e", kill_on_drop: false }`
[INFO] [stdout] 394bc114fc577d7206f5434ffe1802b3a50659efa809e87579ff04a4997ad97e
