[INFO] fetching crate bitcoinleveldb-compat 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-compat-0.1.16-alpha.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bitcoinleveldb-compat 0.1.16-alpha.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-compat 0.1.16-alpha.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-compat 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-compat 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-compat 0.1.16-alpha.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] e0f3dbf637f17cbeeffe1d3c00cc8562cdb640d7c664cef426798a107d6e2aff
[INFO] running `Command { std: "docker" "start" "-a" "e0f3dbf637f17cbeeffe1d3c00cc8562cdb640d7c664cef426798a107d6e2aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0f3dbf637f17cbeeffe1d3c00cc8562cdb640d7c664cef426798a107d6e2aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0f3dbf637f17cbeeffe1d3c00cc8562cdb640d7c664cef426798a107d6e2aff", kill_on_drop: false }`
[INFO] [stdout] e0f3dbf637f17cbeeffe1d3c00cc8562cdb640d7c664cef426798a107d6e2aff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ccd22bcfafa0129b4bab205b0001c8a13ed609884286a09e1669230e4b2a374
[INFO] running `Command { std: "docker" "start" "-a" "1ccd22bcfafa0129b4bab205b0001c8a13ed609884286a09e1669230e4b2a374", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]   --> src/port_stdcxx.rs:69:20
[INFO] [stdout]    |
[INFO] [stdout] 69 |         pub fn new(mu: *mut Mutex) -> Self {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/port_stdcxx.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             input:  *const u8,
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/port_stdcxx.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/port_stdcxx.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             output: *mut String) -> bool {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/port_stdcxx.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |             input:  *const u8,
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/port_stdcxx.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/port_stdcxx.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             result: *mut usize) -> bool {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/port_stdcxx.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             input:  *const u8,
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/port_stdcxx.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/port_stdcxx.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             output: *mut u8) -> bool {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/port_stdcxx.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             func: fn(
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/port_stdcxx.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |             arg:  *mut c_void) -> bool {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc`
[INFO] [stdout]    --> src/port_stdcxx.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |             crc:  u32,
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_crc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/port_stdcxx.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |             buf:  *const u8,
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/port_stdcxx.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             size: usize) -> u32 {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mu` is never read
[INFO] [stdout]   --> src/port_stdcxx.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub struct Mutex {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] 25 |         mu: parking_lot::RawMutex,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cv` and `mu` are never read
[INFO] [stdout]   --> src/port_stdcxx.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub struct CondVar {
[INFO] [stdout]    |                ------- fields in this struct
[INFO] [stdout] 63 |         cv: std::sync::Condvar,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 64 |         mu: *const Mutex,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]   --> src/port_stdcxx.rs:69:20
[INFO] [stdout]    |
[INFO] [stdout] 69 |         pub fn new(mu: *mut Mutex) -> Self {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/port_stdcxx.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             input:  *const u8,
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/port_stdcxx.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/port_stdcxx.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             output: *mut String) -> bool {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/port_stdcxx.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |             input:  *const u8,
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/port_stdcxx.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/port_stdcxx.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             result: *mut usize) -> bool {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/port_stdcxx.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             input:  *const u8,
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/port_stdcxx.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/port_stdcxx.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             output: *mut u8) -> bool {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/port_stdcxx.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             func: fn(
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/port_stdcxx.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |             arg:  *mut c_void) -> bool {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc`
[INFO] [stdout]    --> src/port_stdcxx.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |             crc:  u32,
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_crc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/port_stdcxx.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |             buf:  *const u8,
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/port_stdcxx.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             size: usize) -> u32 {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mu` is never read
[INFO] [stdout]   --> src/port_stdcxx.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub struct Mutex {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] 25 |         mu: parking_lot::RawMutex,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cv` and `mu` are never read
[INFO] [stdout]   --> src/port_stdcxx.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub struct CondVar {
[INFO] [stdout]    |                ------- fields in this struct
[INFO] [stdout] 63 |         cv: std::sync::Condvar,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 64 |         mu: *const Mutex,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.12s
[INFO] running `Command { std: "docker" "inspect" "1ccd22bcfafa0129b4bab205b0001c8a13ed609884286a09e1669230e4b2a374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ccd22bcfafa0129b4bab205b0001c8a13ed609884286a09e1669230e4b2a374", kill_on_drop: false }`
[INFO] [stdout] 1ccd22bcfafa0129b4bab205b0001c8a13ed609884286a09e1669230e4b2a374
