[INFO] fetching crate stakker 0.2.10...
[INFO] checking stakker-0.2.10 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate stakker 0.2.10 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate stakker 0.2.10 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stakker 0.2.10
[INFO] finished tweaking crates.io crate stakker 0.2.10
[INFO] tweaked toml for crates.io crate stakker 0.2.10 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate stakker 0.2.10 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded exclusion-set v0.1.2
[INFO] [stderr]   Downloaded qcell v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f6f27228a071045e3fb27c8a12eb9dddcd291f4d851419d6355c9b475c6c386
[INFO] running `Command { std: "docker" "start" "-a" "4f6f27228a071045e3fb27c8a12eb9dddcd291f4d851419d6355c9b475c6c386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f6f27228a071045e3fb27c8a12eb9dddcd291f4d851419d6355c9b475c6c386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f6f27228a071045e3fb27c8a12eb9dddcd291f4d851419d6355c9b475c6c386", kill_on_drop: false }`
[INFO] [stdout] 4f6f27228a071045e3fb27c8a12eb9dddcd291f4d851419d6355c9b475c6c386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02c336a46c9fb4097be5058c69695c5bb2aa4517449683bc32cc025c1fe9f9f7
[INFO] running `Command { std: "docker" "start" "-a" "02c336a46c9fb4097be5058c69695c5bb2aa4517449683bc32cc025c1fe9f9f7", kill_on_drop: false }`
[INFO] [stderr]     Checking qcell v0.5.4
[INFO] [stderr]     Checking stakker v0.2.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: mutable reference of mutable static is discouraged
[INFO] [stdout]   --> src/deferrer/global.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |         unsafe { mem::replace(&mut TASK, task) }
[INFO] [stdout]    |                               ^^^^^^^^^ mutable reference of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: reference of mutable static is a hard error from 2024 edition
[INFO] [stdout]    = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: `#[warn(static_mut_ref)]` on by default
[INFO] [stdout] help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 86 |         unsafe { mem::replace(addr_of_mut!(TASK), task) }
[INFO] [stdout]    |                               ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/actor.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub struct ActorOwnAnon(Box<dyn ActorOwnAnonTrait>);
[INFO] [stdout]     |            ------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub struct ActorOwnAnon(());
[INFO] [stdout]     |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable reference of mutable static is discouraged
[INFO] [stdout]   --> src/deferrer/global.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |         unsafe { mem::replace(&mut TASK, task) }
[INFO] [stdout]    |                               ^^^^^^^^^ mutable reference of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: reference of mutable static is a hard error from 2024 edition
[INFO] [stdout]    = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: `#[warn(static_mut_ref)]` on by default
[INFO] [stdout] help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 86 |         unsafe { mem::replace(addr_of_mut!(TASK), task) }
[INFO] [stdout]    |                               ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/actor.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub struct ActorOwnAnon(Box<dyn ActorOwnAnonTrait>);
[INFO] [stdout]     |            ------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub struct ActorOwnAnon(());
[INFO] [stdout]     |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/test/memsizes.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Actor1000([u8; 1000]);
[INFO] [stdout]    |        --------- ^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Actor1000(());
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/test/memsizes.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Actor2000([u8; 2000]);
[INFO] [stdout]    |        --------- ^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Actor2000(());
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "02c336a46c9fb4097be5058c69695c5bb2aa4517449683bc32cc025c1fe9f9f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02c336a46c9fb4097be5058c69695c5bb2aa4517449683bc32cc025c1fe9f9f7", kill_on_drop: false }`
[INFO] [stdout] 02c336a46c9fb4097be5058c69695c5bb2aa4517449683bc32cc025c1fe9f9f7
