[INFO] fetching crate const-str-proc-macro 0.2.1...
[INFO] checking const-str-proc-macro-0.2.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate const-str-proc-macro 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate const-str-proc-macro 0.2.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const-str-proc-macro 0.2.1
[INFO] finished tweaking crates.io crate const-str-proc-macro 0.2.1
[INFO] tweaked toml for crates.io crate const-str-proc-macro 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d4311c717168b60e81e26beabd2eb30f4d787f56c3f78df9df33da70db959bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3d4311c717168b60e81e26beabd2eb30f4d787f56c3f78df9df33da70db959bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d4311c717168b60e81e26beabd2eb30f4d787f56c3f78df9df33da70db959bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d4311c717168b60e81e26beabd2eb30f4d787f56c3f78df9df33da70db959bf", kill_on_drop: false }`
[INFO] [stdout] 3d4311c717168b60e81e26beabd2eb30f4d787f56c3f78df9df33da70db959bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df167ac88f5caf2d0aaee53dcda544758e878e3bfbcace3a086b3de236259f45
[INFO] running `Command { std: "docker" "start" "-a" "df167ac88f5caf2d0aaee53dcda544758e878e3bfbcace3a086b3de236259f45", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v1.0.76
[INFO] [stderr]     Checking const-str-proc-macro v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/lib.rs:56:90
[INFO] [stdout]    |
[INFO] [stdout] 56 |         return TokenStream::from(syn::Error::new($token.span(), $msg).to_compile_error());
[INFO] [stdout]    |                                                                                          ^
[INFO] [stdout] ...
[INFO] [stdout] 67 |         Err(e) => emit_error!(src_token, e.to_string()),
[INFO] [stdout]    |                   ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `emit_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/lib.rs:56:90
[INFO] [stdout]     |
[INFO] [stdout] 56  |           return TokenStream::from(syn::Error::new($token.span(), $msg).to_compile_error());
[INFO] [stdout]     |                                                                                            ^
[INFO] [stdout] ...
[INFO] [stdout] 132 |           Err(_) => emit_error!(
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 133 | |             src_token,
[INFO] [stdout] 134 | |             "the byte string literal is not a valid UTF-8 string"
[INFO] [stdout] 135 | |         ),
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `emit_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/lib.rs:56:90
[INFO] [stdout]    |
[INFO] [stdout] 56 |         return TokenStream::from(syn::Error::new($token.span(), $msg).to_compile_error());
[INFO] [stdout]    |                                                                                          ^
[INFO] [stdout] ...
[INFO] [stdout] 67 |         Err(e) => emit_error!(src_token, e.to_string()),
[INFO] [stdout]    |                   ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `emit_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/lib.rs:56:90
[INFO] [stdout]     |
[INFO] [stdout] 56  |           return TokenStream::from(syn::Error::new($token.span(), $msg).to_compile_error());
[INFO] [stdout]     |                                                                                            ^
[INFO] [stdout] ...
[INFO] [stdout] 132 |           Err(_) => emit_error!(
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 133 | |             src_token,
[INFO] [stdout] 134 | |             "the byte string literal is not a valid UTF-8 string"
[INFO] [stdout] 135 | |         ),
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `emit_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "df167ac88f5caf2d0aaee53dcda544758e878e3bfbcace3a086b3de236259f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df167ac88f5caf2d0aaee53dcda544758e878e3bfbcace3a086b3de236259f45", kill_on_drop: false }`
[INFO] [stdout] df167ac88f5caf2d0aaee53dcda544758e878e3bfbcace3a086b3de236259f45