[INFO] fetching crate memchain 0.4.1...
[INFO] checking memchain-0.4.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate memchain 0.4.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate memchain 0.4.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memchain 0.4.1
[INFO] finished tweaking crates.io crate memchain 0.4.1
[INFO] tweaked toml for crates.io crate memchain 0.4.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `crate_type` is deprecated in favor of `crate-type` and will not work in the 2024 edition
[INFO] [stderr] (in the `memchain` library target)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blockchain-traits v0.4.1
[INFO] [stderr]   Downloaded oasis-borsh-derive-internal v0.2.14
[INFO] [stderr]   Downloaded oasis-types v0.4.0
[INFO] [stderr]   Downloaded derive_more v0.15.0
[INFO] [stderr]   Downloaded oasis-borsh-derive v0.2.10
[INFO] [stderr]   Downloaded oasis-borsh v0.2.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cac5cc25840255cd6c32d5987735560f38245e14c168b27d97a9209965891a52
[INFO] running `Command { std: "docker" "start" "-a" "cac5cc25840255cd6c32d5987735560f38245e14c168b27d97a9209965891a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cac5cc25840255cd6c32d5987735560f38245e14c168b27d97a9209965891a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac5cc25840255cd6c32d5987735560f38245e14c168b27d97a9209965891a52", kill_on_drop: false }`
[INFO] [stdout] cac5cc25840255cd6c32d5987735560f38245e14c168b27d97a9209965891a52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2de58ce92f3bfd0b2ab6824e19aeae2a7d365076fe3dcc9e205781394516400
[INFO] running `Command { std: "docker" "start" "-a" "a2de58ce92f3bfd0b2ab6824e19aeae2a7d365076fe3dcc9e205781394516400", kill_on_drop: false }`
[INFO] [stderr] warning: `crate_type` is deprecated in favor of `crate-type` and will not work in the 2024 edition
[INFO] [stderr] (in the `memchain` library target)
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling oasis-borsh-derive-internal v0.2.14
[INFO] [stderr]    Compiling oasis-borsh-derive v0.2.10
[INFO] [stderr]     Checking oasis-borsh v0.2.12
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]     Checking oasis-types v0.4.0
[INFO] [stderr]     Checking blockchain-traits v0.4.1
[INFO] [stderr]     Checking memchain v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/block.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         box receipt
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Box::new(receipt)
[INFO] [stdout]     |         ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/block.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         box receipt
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Box::new(receipt)
[INFO] [stdout]     |         ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/pending_transaction.rs:60:20
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return box receipt;
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Box::new(receipt);
[INFO] [stdout]    |                    ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/pending_transaction.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |             return box receipt;
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 65 |             return Box::new(receipt);
[INFO] [stdout]    |                    ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/pending_transaction.rs:60:20
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return box receipt;
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Box::new(receipt);
[INFO] [stdout]    |                    ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/pending_transaction.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |             return box receipt;
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 74 |             return Box::new(receipt);
[INFO] [stdout]    |                    ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/pending_transaction.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         box receipt
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 118 |         Box::new(receipt)
[INFO] [stdout]     |         ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/pending_transaction.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |             return box receipt;
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 65 |             return Box::new(receipt);
[INFO] [stdout]    |                    ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/pending_transaction.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |             return box receipt;
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 74 |             return Box::new(receipt);
[INFO] [stdout]    |                    ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/pending_transaction.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         box receipt
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 118 |         Box::new(receipt)
[INFO] [stdout]     |         ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |             early_return!(InvalidCallee);
[INFO] [stdout]    |             ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |             early_return!(InvalidCallee);
[INFO] [stdout]    |             ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |             early_return!(InsufficientGas);
[INFO] [stdout]    |             ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |                     early_return!(InsufficientFunds);
[INFO] [stdout]    |                     -------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |             early_return!(InsufficientGas);
[INFO] [stdout]    |             ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |             None => early_return!(InvalidCallee),
[INFO] [stdout]    |                     ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |                     early_return!(InsufficientFunds);
[INFO] [stdout]    |                     -------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |                     early_return!(InsufficientFunds);
[INFO] [stdout]    |                     -------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |             None => early_return!(InvalidCallee),
[INFO] [stdout]    |                     ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |             None => early_return!(InvalidCallee),
[INFO] [stdout]    |                     ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |                     early_return!(InsufficientFunds);
[INFO] [stdout]    |                     -------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/block.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return box receipt;
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |             None => early_return!(InvalidCallee),
[INFO] [stdout]    |                     ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `early_return` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 return Box::new(receipt);
[INFO] [stdout]    |                        ~~~~~~~~~       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memchain` (lib) due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memchain` (lib test) due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "a2de58ce92f3bfd0b2ab6824e19aeae2a7d365076fe3dcc9e205781394516400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2de58ce92f3bfd0b2ab6824e19aeae2a7d365076fe3dcc9e205781394516400", kill_on_drop: false }`
[INFO] [stdout] a2de58ce92f3bfd0b2ab6824e19aeae2a7d365076fe3dcc9e205781394516400
