[INFO] fetching crate logfn 0.1.0...
[INFO] checking logfn-0.1.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate logfn 0.1.0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate logfn 0.1.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate logfn 0.1.0
[INFO] finished tweaking crates.io crate logfn 0.1.0
[INFO] tweaked toml for crates.io crate logfn 0.1.0 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3481fcc405925d4c4b2a85b40dc8f6d47ccea3cd70a3a4d0c670bc7cb378bf0
[INFO] running `Command { std: "docker" "start" "-a" "f3481fcc405925d4c4b2a85b40dc8f6d47ccea3cd70a3a4d0c670bc7cb378bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3481fcc405925d4c4b2a85b40dc8f6d47ccea3cd70a3a4d0c670bc7cb378bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3481fcc405925d4c4b2a85b40dc8f6d47ccea3cd70a3a4d0c670bc7cb378bf0", kill_on_drop: false }`
[INFO] [stdout] f3481fcc405925d4c4b2a85b40dc8f6d47ccea3cd70a3a4d0c670bc7cb378bf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bd4a352be0dcbbed95a58485f88b9e81e5e19b9a11335910abef324ef452846
[INFO] running `Command { std: "docker" "start" "-a" "4bd4a352be0dcbbed95a58485f88b9e81e5e19b9a11335910abef324ef452846", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking logfn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 None => unrecognized_item!(path),
[INFO] [stdout]    |                         ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 74 |                 i => unrecognized_item!(i),
[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 `unrecognized_item` (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/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 87 |                 unrecognized_item!(path)
[INFO] [stdout]    |                 ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `unrecognized_item`
[INFO] [stdout]    = note: this warning originates in the macro `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 91 |         _ => unrecognized_item!(arg),
[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 `unrecognized_item` (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/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 None => unrecognized_item!(path),
[INFO] [stdout]    |                         ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 74 |                 i => unrecognized_item!(i),
[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 `unrecognized_item` (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/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 87 |                 unrecognized_item!(path)
[INFO] [stdout]    |                 ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `unrecognized_item`
[INFO] [stdout]    = note: this warning originates in the macro `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 91 |         _ => unrecognized_item!(arg),
[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 `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 None => unrecognized_item!(path),
[INFO] [stdout]    |                         ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 74 |                 i => unrecognized_item!(i),
[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 `unrecognized_item` (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/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 87 |                 unrecognized_item!(path)
[INFO] [stdout]    |                 ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `unrecognized_item`
[INFO] [stdout]    = note: this warning originates in the macro `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/arg.rs:51:78
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return Err(syn::Error::new_spanned($item, "Unrecognized attribute."));
[INFO] [stdout]    |                                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 91 |         _ => unrecognized_item!(arg),
[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 `unrecognized_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.26s
[INFO] running `Command { std: "docker" "inspect" "4bd4a352be0dcbbed95a58485f88b9e81e5e19b9a11335910abef324ef452846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bd4a352be0dcbbed95a58485f88b9e81e5e19b9a11335910abef324ef452846", kill_on_drop: false }`
[INFO] [stdout] 4bd4a352be0dcbbed95a58485f88b9e81e5e19b9a11335910abef324ef452846