[INFO] fetching crate logfn 0.1.0...
[INFO] checking logfn-0.1.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate logfn 0.1.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate logfn 0.1.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-34/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1edbbb0fe962150785f862f90bdbf5b13049212757ac079c6ebf1b3aa304202
[INFO] running `Command { std: "docker" "start" "-a" "c1edbbb0fe962150785f862f90bdbf5b13049212757ac079c6ebf1b3aa304202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1edbbb0fe962150785f862f90bdbf5b13049212757ac079c6ebf1b3aa304202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1edbbb0fe962150785f862f90bdbf5b13049212757ac079c6ebf1b3aa304202", kill_on_drop: false }`
[INFO] [stdout] c1edbbb0fe962150785f862f90bdbf5b13049212757ac079c6ebf1b3aa304202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ce3115292712d24ff73c1de5be51fa60c9ef9795e725a89ab85a0658206f4c
[INFO] running `Command { std: "docker" "start" "-a" "a7ce3115292712d24ff73c1de5be51fa60c9ef9795e725a89ab85a0658206f4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[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 14.51s
[INFO] running `Command { std: "docker" "inspect" "a7ce3115292712d24ff73c1de5be51fa60c9ef9795e725a89ab85a0658206f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ce3115292712d24ff73c1de5be51fa60c9ef9795e725a89ab85a0658206f4c", kill_on_drop: false }`
[INFO] [stdout] a7ce3115292712d24ff73c1de5be51fa60c9ef9795e725a89ab85a0658206f4c