[INFO] fetching crate melminter-mod 0.8.12...
[INFO] checking melminter-mod-0.8.12 against 1.95.0 for pr-155915
[INFO] extracting crate melminter-mod 0.8.12 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate melminter-mod 0.8.12
[INFO] finished tweaking crates.io crate melminter-mod 0.8.12
[INFO] tweaked toml for crates.io crate melminter-mod 0.8.12 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate melminter-mod 0.8.12 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate melminter-mod 0.8.12 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", 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_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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c1f03259788193dce72059c1bc22bb2255c74b5506102284b02f58afca6a7f3
[INFO] running `Command { std: "docker" "start" "-a" "4c1f03259788193dce72059c1bc22bb2255c74b5506102284b02f58afca6a7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c1f03259788193dce72059c1bc22bb2255c74b5506102284b02f58afca6a7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c1f03259788193dce72059c1bc22bb2255c74b5506102284b02f58afca6a7f3", kill_on_drop: false }`
[INFO] [stdout] 4c1f03259788193dce72059c1bc22bb2255c74b5506102284b02f58afca6a7f3
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6746e16dfa4d171e63b34bd8e4850557ab52c179c01a542f7dfc6348569fdbed
[INFO] running `Command { std: "docker" "start" "-a" "6746e16dfa4d171e63b34bd8e4850557ab52c179c01a542f7dfc6348569fdbed", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `PrepareReq` is never constructed
[INFO] [stdout]   --> src/state.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct PrepareReq {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `no_failsafe` is never read
[INFO] [stdout]    --> src/state.rs:512:9
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub struct FeeSchedule {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 512 |     pub no_failsafe: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FeeSchedule` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/db.rs:166:40
[INFO] [stdout]     |
[INFO] [stdout] 166 |             md_keylist: (TABLE_METADATA.clone().to_owned()+".keys").as_bytes().to_vec(),
[INFO] [stdout]     |                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/db.rs:216:40
[INFO] [stdout]     |
[INFO] [stdout] 216 |         if k.starts_with(TABLE_METADATA.clone().as_bytes()) {
[INFO] [stdout]     |                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/test.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |       return;
[INFO] [stdout]    |       ------ any code following this expression is unreachable
[INFO] [stdout] 72 | /     for i in 0..1 {
[INFO] [stdout] 73 | |         println!("null[{}] {}", i+1, new_null_dst());
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrepareReq` is never constructed
[INFO] [stdout]   --> src/state.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct PrepareReq {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `no_failsafe` is never read
[INFO] [stdout]    --> src/state.rs:512:9
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub struct FeeSchedule {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 512 |     pub no_failsafe: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FeeSchedule` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/db.rs:166:40
[INFO] [stdout]     |
[INFO] [stdout] 166 |             md_keylist: (TABLE_METADATA.clone().to_owned()+".keys").as_bytes().to_vec(),
[INFO] [stdout]     |                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/db.rs:216:40
[INFO] [stdout]     |
[INFO] [stdout] 216 |         if k.starts_with(TABLE_METADATA.clone().as_bytes()) {
[INFO] [stdout]     |                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2, themelio-stf v0.9.16
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "6746e16dfa4d171e63b34bd8e4850557ab52c179c01a542f7dfc6348569fdbed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6746e16dfa4d171e63b34bd8e4850557ab52c179c01a542f7dfc6348569fdbed", kill_on_drop: false }`
[INFO] [stdout] 6746e16dfa4d171e63b34bd8e4850557ab52c179c01a542f7dfc6348569fdbed
