[INFO] fetching crate pupper 0.1.0...
[INFO] building pupper-0.1.0 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] extracting crate pupper 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate pupper 0.1.0 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pupper 0.1.0
[INFO] finished tweaking crates.io crate pupper 0.1.0
[INFO] tweaked toml for crates.io crate pupper 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate pupper 0.1.0 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03894211d0345edb54516cb0dba1f9dbe32691df637e494aafda2e72025875fc
[INFO] running `Command { std: "docker" "start" "-a" "03894211d0345edb54516cb0dba1f9dbe32691df637e494aafda2e72025875fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03894211d0345edb54516cb0dba1f9dbe32691df637e494aafda2e72025875fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03894211d0345edb54516cb0dba1f9dbe32691df637e494aafda2e72025875fc", kill_on_drop: false }`
[INFO] [stdout] 03894211d0345edb54516cb0dba1f9dbe32691df637e494aafda2e72025875fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4608e8fd438304720805d613cd4f19d2dad88abec49200fea44f3df05800c664
[INFO] running `Command { std: "docker" "start" "-a" "4608e8fd438304720805d613cd4f19d2dad88abec49200fea44f3df05800c664", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pupper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib/lib.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | #![feature(const_evaluatable_checked, const_generics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: renamed to `generic_const_exprs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib/lib.rs:72:39
[INFO] [stdout]    |
[INFO] [stdout] 72 | #![feature(const_evaluatable_checked, const_generics)]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: generic parameters may not be used in const operations
[INFO] [stdout]  --> src/lib/header/table.rs:8:42
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl<'a, T: FixedSize + TryFrom<&'a [u8; T::SIZE]>> TryFrom<&'a [u8]> for Table<T>
[INFO] [stdout]   |                                          ^^^^^^^ cannot perform const operation using `T`
[INFO] [stdout]   |
[INFO] [stdout]   = note: type parameters may not be used in const expressions
[INFO] [stdout]   = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: generic parameters may not be used in const operations
[INFO] [stdout]   --> src/lib/header/table.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     [(); T::SIZE]: Sized,
[INFO] [stdout]    |          ^^^^^^^ cannot perform const operation using `T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: type parameters may not be used in const expressions
[INFO] [stdout]    = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: generic parameters may not be used in const operations
[INFO] [stdout]   --> src/lib/header/table.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |             .flat_map(|x| <&[u8; T::SIZE]>::try_from(x).unwrap().try_into())
[INFO] [stdout]    |                                  ^^^^^^^ cannot perform const operation using `T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: type parameters may not be used in const expressions
[INFO] [stdout]    = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: generic parameters may not be used in const operations
[INFO] [stdout]   --> src/lib/header/table.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |     [u8; T::SIZE]: From<T>,
[INFO] [stdout]    |          ^^^^^^^ cannot perform const operation using `T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: type parameters may not be used in const expressions
[INFO] [stdout]    = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: generic parameters may not be used in const operations
[INFO] [stdout]   --> src/lib/header/table.rs:32:33
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .flat_map(|x| <[u8; T::SIZE]>::from(*x).to_vec())
[INFO] [stdout]    |                                 ^^^^^^^ cannot perform const operation using `T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: type parameters may not be used in const expressions
[INFO] [stdout]    = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pupper` (lib) due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4608e8fd438304720805d613cd4f19d2dad88abec49200fea44f3df05800c664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4608e8fd438304720805d613cd4f19d2dad88abec49200fea44f3df05800c664", kill_on_drop: false }`
[INFO] [stdout] 4608e8fd438304720805d613cd4f19d2dad88abec49200fea44f3df05800c664