[INFO] fetching crate fixed_len_str_example 0.2.5...
[INFO] testing fixed_len_str_example-0.2.5 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fixed_len_str_example 0.2.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate fixed_len_str_example 0.2.5
[INFO] finished tweaking crates.io crate fixed_len_str_example 0.2.5
[INFO] tweaked toml for crates.io crate fixed_len_str_example 0.2.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fixed_len_str_example 0.2.5 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixed_len_str v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287
[INFO] running `Command { std: "docker" "start" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling fixed_len_str v0.3.3
[INFO] [stderr]    Compiling fixed_len_str_example v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pattern)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 lifetime arguments but 1 lifetime argument was supplied
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | fixed_len_str!(12);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^ expected 0 lifetime arguments
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `fixed_len_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: missing generics for associated type `core::str::pattern::Pattern::Searcher`
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | fixed_len_str!(12);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^ expected 1 lifetime argument
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `fixed_len_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add missing lifetime argument
[INFO] [stdout]   |
[INFO] [stdout] 9 | fixed_len_str!(12)<'_>;
[INFO] [stdout]   |                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 lifetime arguments but 1 lifetime argument was supplied
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fixed_len_str_nz!(12);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ expected 0 lifetime arguments
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `fixed_len_str_nz` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: missing generics for associated type `core::str::pattern::Pattern::Searcher`
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fixed_len_str_nz!(12);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ expected 1 lifetime argument
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `fixed_len_str_nz` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add missing lifetime argument
[INFO] [stdout]    |
[INFO] [stdout] 10 | fixed_len_str_nz!(12)<'_>;
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0195]: lifetime parameters or bounds on associated type `Searcher` do not match the trait declaration
[INFO] [stdout]  --> src/lib.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | fixed_len_str!(12);
[INFO] [stdout]   |                   ^ lifetimes do not match associated type in trait
[INFO] [stdout]   |
[INFO] [stdout]  --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/str/pattern.rs:101:4
[INFO] [stdout]   |
[INFO] [stdout]   = note: lifetimes in impl do not match this associated type in trait
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `fixed_len_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | fixed_len_str!(12);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^ unconstrained lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `fixed_len_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the lifetime parameter `'a` in the `fixed_str12::Closure` type and use it in the type definition
[INFO] [stdout]   |
[INFO] [stdout] 9 | fixed_len_str!(12, 'a), 'a;
[INFO] [stdout]   |                  ++++ ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0195]: lifetime parameters or bounds on associated type `Searcher` do not match the trait declaration
[INFO] [stdout]   --> src/lib.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | fixed_len_str_nz!(12);
[INFO] [stdout]    |                      ^ lifetimes do not match associated type in trait
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/str/pattern.rs:101:4
[INFO] [stdout]    |
[INFO] [stdout]    = note: lifetimes in impl do not match this associated type in trait
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `fixed_len_str_nz` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fixed_len_str_nz!(12);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ unconstrained lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `fixed_len_str_nz` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the lifetime parameter `'a` in the `fixed_str_nz12::Closure` type and use it in the type definition
[INFO] [stdout]    |
[INFO] [stdout] 10 | fixed_len_str_nz!(12, 'a), 'a;
[INFO] [stdout]    |                     ++++ ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0195, E0207, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fixed_len_str_example` (lib) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287", kill_on_drop: false }`
[INFO] [stdout] 7c92d75fc3d7334cf38cc0fe8657050b22dec016617b9726ba2f8093ec13e287
