[INFO] fetching crate sputnikvm 0.11.0-beta.0... [INFO] building sputnikvm-0.11.0-beta.0 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3 [INFO] extracting crate sputnikvm 0.11.0-beta.0 into /workspace/builds/worker-57/source [INFO] validating manifest of crates.io crate sputnikvm 0.11.0-beta.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate sputnikvm 0.11.0-beta.0 [INFO] finished tweaking crates.io crate sputnikvm 0.11.0-beta.0 [INFO] tweaked toml for crates.io crate sputnikvm 0.11.0-beta.0 written to /workspace/builds/worker-57/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 106ad757c92c3b869ba080502a49c9646526d8c0cb01a9d1cdfae3f0fd30ec2f [INFO] running `Command { std: "docker" "start" "-a" "106ad757c92c3b869ba080502a49c9646526d8c0cb01a9d1cdfae3f0fd30ec2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "106ad757c92c3b869ba080502a49c9646526d8c0cb01a9d1cdfae3f0fd30ec2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "106ad757c92c3b869ba080502a49c9646526d8c0cb01a9d1cdfae3f0fd30ec2f", kill_on_drop: false }` [INFO] [stdout] 106ad757c92c3b869ba080502a49c9646526d8c0cb01a9d1cdfae3f0fd30ec2f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 50ea9044335146d114e815873b9eaa8596288ca84304b89473ecf35c14f00593 [INFO] running `Command { std: "docker" "start" "-a" "50ea9044335146d114e815873b9eaa8596288ca84304b89473ecf35c14f00593", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling byte-tools v0.2.0 [INFO] [stderr] Compiling elastic-array-plus v0.10.0 [INFO] [stderr] Compiling etcommon-hexutil v0.2.4 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling odds v0.2.26 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling arrayvec v0.3.25 [INFO] [stderr] Compiling etcommon-rlp v0.2.5 [INFO] [stderr] Compiling secp256k1-plus v0.5.7 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling generic-array v0.8.4 [INFO] [stderr] Compiling block-buffer v0.2.0 [INFO] [stderr] Compiling digest v0.6.1 [INFO] [stderr] Compiling sha3 v0.6.0 [INFO] [stderr] Compiling sha2 v0.6.0 [INFO] [stderr] Compiling ripemd160 v0.6.0 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling etcommon-bigint v0.2.10 [INFO] [stderr] Compiling etcommon-bloom v0.2.1 [INFO] [stderr] Compiling etcommon-trie v0.4.0 [INFO] [stderr] Compiling etcommon-block-core v0.3.1 [INFO] [stderr] Compiling etcommon-block v0.5.2 [INFO] [stderr] Compiling sputnikvm v0.11.0-beta.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/eval/run/mod.rs:19:45 [INFO] [stdout] | [INFO] [stdout] 19 | $machine.stack.push($x).unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] ::: src/eval/run/environment.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | push!(state, M256::zero()) [INFO] [stdout] | -------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: macro invocations at the end of a block are treated as expressions [INFO] [stdout] = note: to ignore the value produced by the macro, add a semicolon after the invocation of `push` [INFO] [stdout] = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/eval/mod.rs:141:40 [INFO] [stdout] | [INFO] [stdout] 141 | pub context_history_hooks: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Context)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/eval/mod.rs:476:82 [INFO] [stdout] | [INFO] [stdout] 476 | self.state.refunded_gas = self.state.refunded_gas.add_refund(gas_refund);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:93:78 [INFO] [stdout] | [INFO] [stdout] 93 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)]; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:97:78 [INFO] [stdout] | [INFO] [stdout] 97 | pub static EMBEDDED_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 4] = [ [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:138:78 [INFO] [stdout] | [INFO] [stdout] 138 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] { [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:168:78 [INFO] [stdout] | [INFO] [stdout] 168 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] { [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.85s [INFO] running `Command { std: "docker" "inspect" "50ea9044335146d114e815873b9eaa8596288ca84304b89473ecf35c14f00593", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "50ea9044335146d114e815873b9eaa8596288ca84304b89473ecf35c14f00593", kill_on_drop: false }` [INFO] [stdout] 50ea9044335146d114e815873b9eaa8596288ca84304b89473ecf35c14f00593 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 54389450d3e1896117db81ac360794c5ad32463841860bc15b394d589d575807 [INFO] running `Command { std: "docker" "start" "-a" "54389450d3e1896117db81ac360794c5ad32463841860bc15b394d589d575807", kill_on_drop: false }` [INFO] [stderr] Compiling sputnikvm v0.11.0-beta.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/eval/run/mod.rs:19:45 [INFO] [stdout] | [INFO] [stdout] 19 | $machine.stack.push($x).unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] ::: src/eval/run/environment.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | push!(state, M256::zero()) [INFO] [stdout] | -------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: macro invocations at the end of a block are treated as expressions [INFO] [stdout] = note: to ignore the value produced by the macro, add a semicolon after the invocation of `push` [INFO] [stdout] = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/eval/mod.rs:141:40 [INFO] [stdout] | [INFO] [stdout] 141 | pub context_history_hooks: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Context)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/eval/mod.rs:476:82 [INFO] [stdout] | [INFO] [stdout] 476 | self.state.refunded_gas = self.state.refunded_gas.add_refund(gas_refund);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:93:78 [INFO] [stdout] | [INFO] [stdout] 93 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)]; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:97:78 [INFO] [stdout] | [INFO] [stdout] 97 | pub static EMBEDDED_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 4] = [ [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:138:78 [INFO] [stdout] | [INFO] [stdout] 138 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] { [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:168:78 [INFO] [stdout] | [INFO] [stdout] 168 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] { [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/eval/run/mod.rs:19:45 [INFO] [stdout] | [INFO] [stdout] 19 | $machine.stack.push($x).unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] ::: src/eval/run/environment.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | push!(state, M256::zero()) [INFO] [stdout] | -------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: macro invocations at the end of a block are treated as expressions [INFO] [stdout] = note: to ignore the value produced by the macro, add a semicolon after the invocation of `push` [INFO] [stdout] = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/eval/mod.rs:141:40 [INFO] [stdout] | [INFO] [stdout] 141 | pub context_history_hooks: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Context)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/eval/mod.rs:476:82 [INFO] [stdout] | [INFO] [stdout] 476 | self.state.refunded_gas = self.state.refunded_gas.add_refund(gas_refund);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:93:78 [INFO] [stdout] | [INFO] [stdout] 93 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)]; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:97:78 [INFO] [stdout] | [INFO] [stdout] 97 | pub static EMBEDDED_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 4] = [ [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:138:78 [INFO] [stdout] | [INFO] [stdout] 138 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] { [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/patch/mod.rs:168:78 [INFO] [stdout] | [INFO] [stdout] 168 | fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] { [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.46s [INFO] running `Command { std: "docker" "inspect" "54389450d3e1896117db81ac360794c5ad32463841860bc15b394d589d575807", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54389450d3e1896117db81ac360794c5ad32463841860bc15b394d589d575807", kill_on_drop: false }` [INFO] [stdout] 54389450d3e1896117db81ac360794c5ad32463841860bc15b394d589d575807