[INFO] fetching crate validbr 0.2.1...
[INFO] checking validbr-0.2.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate validbr 0.2.1 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate validbr 0.2.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate validbr 0.2.1
[INFO] finished tweaking crates.io crate validbr 0.2.1
[INFO] tweaked toml for crates.io crate validbr 0.2.1 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[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-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eefeb51988063aa3a7690492edb3d5f65af5d0dfa8d260234c8a4ac8ac127ef0
[INFO] running `Command { std: "docker" "start" "-a" "eefeb51988063aa3a7690492edb3d5f65af5d0dfa8d260234c8a4ac8ac127ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eefeb51988063aa3a7690492edb3d5f65af5d0dfa8d260234c8a4ac8ac127ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eefeb51988063aa3a7690492edb3d5f65af5d0dfa8d260234c8a4ac8ac127ef0", kill_on_drop: false }`
[INFO] [stdout] eefeb51988063aa3a7690492edb3d5f65af5d0dfa8d260234c8a4ac8ac127ef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 343a1bcef614d338916f74cc1e57d0859596a98c9dadccc06d7b96a7ce321c32
[INFO] running `Command { std: "docker" "start" "-a" "343a1bcef614d338916f74cc1e57d0859596a98c9dadccc06d7b96a7ce321c32", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking validbr v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 | #![feature(const_evaluatable_checked, const_generics, const_panic)]
[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.rs:99:39
[INFO] [stdout]    |
[INFO] [stdout] 99 | #![feature(const_evaluatable_checked, const_generics, const_panic)]
[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[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 | #![feature(const_evaluatable_checked, const_generics, const_panic)]
[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.rs:99:39
[INFO] [stdout]    |
[INFO] [stdout] 99 | #![feature(const_evaluatable_checked, const_generics, const_panic)]
[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/append.rs:28:40
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn append(self, element: T) -> [T; S + 1];
[INFO] [stdout]    |                                        ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:29:65
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N];
[INFO] [stdout]    |                                                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:29:69
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N];
[INFO] [stdout]    |                                                                     ^ cannot perform const operation using `N`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `N`
[INFO] [stdout]    = help: use `#![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/append.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn append(self, element: T) -> [T; S + 1] {
[INFO] [stdout]    |                                        ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:44:33
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let n_array: Result<[T; S + 1], _> = vec.try_into();
[INFO] [stdout]    |                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:52:65
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N] {
[INFO] [stdout]    |                                                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:52:69
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N] {
[INFO] [stdout]    |                                                                     ^ cannot perform const operation using `N`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `N`
[INFO] [stdout]    = help: use `#![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/append.rs:60:33
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let n_array: Result<[T; S + N], _> = vec.try_into();
[INFO] [stdout]    |                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:60:37
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let n_array: Result<[T; S + N], _> = vec.try_into();
[INFO] [stdout]    |                                     ^ cannot perform const operation using `N`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `N`
[INFO] [stdout]    = help: use `#![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/append.rs:28:40
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn append(self, element: T) -> [T; S + 1];
[INFO] [stdout]    |                                        ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:29:65
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N];
[INFO] [stdout]    |                                                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:29:69
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N];
[INFO] [stdout]    |                                                                     ^ cannot perform const operation using `N`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `N`
[INFO] [stdout]    = help: use `#![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/append.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn append(self, element: T) -> [T; S + 1] {
[INFO] [stdout]    |                                        ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:44:33
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let n_array: Result<[T; S + 1], _> = vec.try_into();
[INFO] [stdout]    |                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:52:65
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N] {
[INFO] [stdout]    |                                                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:52:69
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn append_array<const N: usize>(self, array: [T; N]) -> [T; S + N] {
[INFO] [stdout]    |                                                                     ^ cannot perform const operation using `N`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `N`
[INFO] [stdout]    = help: use `#![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/append.rs:60:33
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let n_array: Result<[T; S + N], _> = vec.try_into();
[INFO] [stdout]    |                                 ^ cannot perform const operation using `S`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `S`
[INFO] [stdout]    = help: use `#![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/append.rs:60:37
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let n_array: Result<[T; S + N], _> = vec.try_into();
[INFO] [stdout]    |                                     ^ cannot perform const operation using `N`
[INFO] [stdout]    |
[INFO] [stdout]    = help: const parameters may only be used as standalone arguments, i.e. `N`
[INFO] [stdout]    = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `validbr` due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "343a1bcef614d338916f74cc1e57d0859596a98c9dadccc06d7b96a7ce321c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "343a1bcef614d338916f74cc1e57d0859596a98c9dadccc06d7b96a7ce321c32", kill_on_drop: false }`
[INFO] [stdout] 343a1bcef614d338916f74cc1e57d0859596a98c9dadccc06d7b96a7ce321c32