[INFO] fetching crate eosio_core 0.2.1...
[INFO] checking eosio_core-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate eosio_core 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate eosio_core 0.2.1
[INFO] finished tweaking crates.io crate eosio_core 0.2.1
[INFO] tweaked toml for crates.io crate eosio_core 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate eosio_core 0.2.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding eosio_numstr v0.2.2 (available: v0.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 329a3243cfca778086350977a32f058e5857126101aaafc2bcb08880aa6402be
[INFO] running `Command { std: "docker" "start" "-a" "329a3243cfca778086350977a32f058e5857126101aaafc2bcb08880aa6402be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "329a3243cfca778086350977a32f058e5857126101aaafc2bcb08880aa6402be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "329a3243cfca778086350977a32f058e5857126101aaafc2bcb08880aa6402be", kill_on_drop: false }`
[INFO] [stdout] 329a3243cfca778086350977a32f058e5857126101aaafc2bcb08880aa6402be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58bd068b2c2e1dd9d8508757563910e8e5f0662b65ecc67a5d6dd48de5d33f4c
[INFO] running `Command { std: "docker" "start" "-a" "58bd068b2c2e1dd9d8508757563910e8e5f0662b65ecc67a5d6dd48de5d33f4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling eosio_numstr v0.2.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling eosio_bytes_derive v0.2.1
[INFO] [stderr]    Compiling eosio_numstr_macros_impl v0.2.1
[INFO] [stderr]     Checking eosio_bytes v0.2.1
[INFO] [stderr]     Checking eosio_numstr_macros v0.2.1
[INFO] [stderr]     Checking eosio_core v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `n`
[INFO] [stdout]    --> src/asset.rs:361:31
[INFO] [stdout]     |
[INFO] [stdout] 361 |     use eosio_numstr_macros::{n, s};
[INFO] [stdout]     |                               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `n`
[INFO] [stdout]    --> src/symbol.rs:139:31
[INFO] [stdout]     |
[INFO] [stdout] 139 |     use eosio_numstr_macros::{n, s};
[INFO] [stdout]     |                               ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/action.rs:60:34
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct DeferredTransactionId(u128);
[INFO] [stdout]    |            --------------------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `DeferredTransactionId` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/resources.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct RamBytes(i64);
[INFO] [stdout]   |            -------- ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/resources.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct NetWeight(i64);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/resources.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct CpuWeight(i64);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/asset.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                   u64::try_from(other).ok().and_then(|other| self.$checked_fn(other))
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 350 | / impl_op! {
[INFO] [stdout] 351 | |     CheckedAdd, AssetOpError, checked_add, Add, add, AddAssign, add_assign
[INFO] [stdout] 352 | |     CheckedSub, AssetOpError, checked_sub, Sub, sub, SubAssign, sub_assign
[INFO] [stdout] 353 | |     CheckedMul, AssetOpError, checked_mul, Mul, mul, MulAssign, mul_assign
[INFO] [stdout] 354 | |     CheckedDiv, AssetDivOpError, checked_div, Div, div, DivAssign, div_assign
[INFO] [stdout] 355 | |     CheckedRem, AssetOpError, checked_rem, Rem, rem, RemAssign, rem_assign
[INFO] [stdout] 356 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eosio_core` (lib test) due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/action.rs:60:34
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct DeferredTransactionId(u128);
[INFO] [stdout]    |            --------------------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `DeferredTransactionId` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/resources.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct RamBytes(i64);
[INFO] [stdout]   |            -------- ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/resources.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct NetWeight(i64);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/resources.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct CpuWeight(i64);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/asset.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                   u64::try_from(other).ok().and_then(|other| self.$checked_fn(other))
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 350 | / impl_op! {
[INFO] [stdout] 351 | |     CheckedAdd, AssetOpError, checked_add, Add, add, AddAssign, add_assign
[INFO] [stdout] 352 | |     CheckedSub, AssetOpError, checked_sub, Sub, sub, SubAssign, sub_assign
[INFO] [stdout] 353 | |     CheckedMul, AssetOpError, checked_mul, Mul, mul, MulAssign, mul_assign
[INFO] [stdout] 354 | |     CheckedDiv, AssetDivOpError, checked_div, Div, div, DivAssign, div_assign
[INFO] [stdout] 355 | |     CheckedRem, AssetOpError, checked_rem, Rem, rem, RemAssign, rem_assign
[INFO] [stdout] 356 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eosio_core` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "58bd068b2c2e1dd9d8508757563910e8e5f0662b65ecc67a5d6dd48de5d33f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58bd068b2c2e1dd9d8508757563910e8e5f0662b65ecc67a5d6dd48de5d33f4c", kill_on_drop: false }`
[INFO] [stdout] 58bd068b2c2e1dd9d8508757563910e8e5f0662b65ecc67a5d6dd48de5d33f4c
