[INFO] fetching crate bitcoinleveldb-snapshot 0.1.12-alpha.0...
[INFO] checking bitcoinleveldb-snapshot-0.1.12-alpha.0 against master#7c306f6dcd600b1fcc74439c780e8ebef338d84c for pr-108918
[INFO] extracting crate bitcoinleveldb-snapshot 0.1.12-alpha.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-snapshot 0.1.12-alpha.0 on toolchain 7c306f6dcd600b1fcc74439c780e8ebef338d84c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c306f6dcd600b1fcc74439c780e8ebef338d84c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-snapshot 0.1.12-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-snapshot 0.1.12-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-snapshot 0.1.12-alpha.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+7c306f6dcd600b1fcc74439c780e8ebef338d84c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c306f6dcd600b1fcc74439c780e8ebef338d84c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] d9e61725b52d9044d5b6869fc1f2c105f90299b5b77fb7b2e5b4e8366b96fcaf
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[INFO] running `Command { std: "docker" "inspect" "d9e61725b52d9044d5b6869fc1f2c105f90299b5b77fb7b2e5b4e8366b96fcaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e61725b52d9044d5b6869fc1f2c105f90299b5b77fb7b2e5b4e8366b96fcaf", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+7c306f6dcd600b1fcc74439c780e8ebef338d84c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7260023f61bb1ffc675f611236f4c5ee683425adf2a1d826e1015cc302f29e4
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[INFO] [stderr]     Checking bitcoin-imports v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.12-alpha.0
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[INFO] [stderr]    Compiling bitcoinleveldb-snapshot v0.1.12-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence_number`
[INFO] [stdout]   --> src/snapshot.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn new(sequence_number: SequenceNumber) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence_number`
[INFO] [stdout]    --> src/snapshot.rs:122:27
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn new(&mut self, sequence_number: SequenceNumber) -> *mut SnapshotImpl {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `snapshot`
[INFO] [stdout]    --> src/snapshot.rs:153:30
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn delete(&mut self, snapshot: *const SnapshotImpl)  {
[INFO] [stdout]     |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_snapshot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence_number`
[INFO] [stdout]   --> src/snapshot.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn new(sequence_number: SequenceNumber) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence_number`
[INFO] [stdout]    --> src/snapshot.rs:122:27
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn new(&mut self, sequence_number: SequenceNumber) -> *mut SnapshotImpl {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `snapshot`
[INFO] [stdout]    --> src/snapshot.rs:153:30
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn delete(&mut self, snapshot: *const SnapshotImpl)  {
[INFO] [stdout]     |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_snapshot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prev`, `next`, `sequence_number`, and `list` are never read
[INFO] [stdout]   --> src/snapshot.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct SnapshotImpl {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 31 |     prev:            *mut SnapshotImpl,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |
[INFO] [stdout] 33 |     next:            *mut SnapshotImpl,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     sequence_number: SequenceNumber,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     list:            *mut SnapshotList, // default = nullptr
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prev`, `next`, `sequence_number`, and `list` are never read
[INFO] [stdout]   --> src/snapshot.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct SnapshotImpl {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 31 |     prev:            *mut SnapshotImpl,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |
[INFO] [stdout] 33 |     next:            *mut SnapshotImpl,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     sequence_number: SequenceNumber,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     list:            *mut SnapshotList, // default = nullptr
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `head` is never read
[INFO] [stdout]   --> src/snapshot.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct SnapshotList {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 73 |     head: SnapshotImpl,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `head` is never read
[INFO] [stdout]   --> src/snapshot.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct SnapshotList {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 73 |     head: SnapshotImpl,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `Command { std: "docker" "inspect" "b7260023f61bb1ffc675f611236f4c5ee683425adf2a1d826e1015cc302f29e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7260023f61bb1ffc675f611236f4c5ee683425adf2a1d826e1015cc302f29e4", kill_on_drop: false }`
[INFO] [stdout] b7260023f61bb1ffc675f611236f4c5ee683425adf2a1d826e1015cc302f29e4