[INFO] fetching crate comprez_macro 0.2.7...
[INFO] checking comprez_macro-0.2.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate comprez_macro 0.2.7 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate comprez_macro 0.2.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comprez_macro 0.2.7
[INFO] finished tweaking crates.io crate comprez_macro 0.2.7
[INFO] tweaked toml for crates.io crate comprez_macro 0.2.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 575a3c7aefc56e4c43af07367a68825fe4cdc6b90d3d56022faca3a286407982
[INFO] running `Command { std: "docker" "start" "-a" "575a3c7aefc56e4c43af07367a68825fe4cdc6b90d3d56022faca3a286407982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "575a3c7aefc56e4c43af07367a68825fe4cdc6b90d3d56022faca3a286407982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575a3c7aefc56e4c43af07367a68825fe4cdc6b90d3d56022faca3a286407982", kill_on_drop: false }`
[INFO] [stdout] 575a3c7aefc56e4c43af07367a68825fe4cdc6b90d3d56022faca3a286407982
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a743ead527f0539edf289bd3dbecd0e9ba2fe4733cc575b4b59fa548384e415
[INFO] running `Command { std: "docker" "start" "-a" "5a743ead527f0539edf289bd3dbecd0e9ba2fe4733cc575b4b59fa548384e415", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking comprez_macro v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "5a743ead527f0539edf289bd3dbecd0e9ba2fe4733cc575b4b59fa548384e415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a743ead527f0539edf289bd3dbecd0e9ba2fe4733cc575b4b59fa548384e415", kill_on_drop: false }`
[INFO] [stdout] 5a743ead527f0539edf289bd3dbecd0e9ba2fe4733cc575b4b59fa548384e415
[INFO] checking comprez_macro-0.2.7 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate comprez_macro 0.2.7 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate comprez_macro 0.2.7 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comprez_macro 0.2.7
[INFO] finished tweaking crates.io crate comprez_macro 0.2.7
[INFO] tweaked toml for crates.io crate comprez_macro 0.2.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0a1c9437ba72aab87ffcc8f38fca28898efdc897b0bd600d945e6a9167ae366
[INFO] running `Command { std: "docker" "start" "-a" "b0a1c9437ba72aab87ffcc8f38fca28898efdc897b0bd600d945e6a9167ae366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0a1c9437ba72aab87ffcc8f38fca28898efdc897b0bd600d945e6a9167ae366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a1c9437ba72aab87ffcc8f38fca28898efdc897b0bd600d945e6a9167ae366", kill_on_drop: false }`
[INFO] [stdout] b0a1c9437ba72aab87ffcc8f38fca28898efdc897b0bd600d945e6a9167ae366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6c532d0f9943ef597f8dbc9672fc0857532dff2606e3a0b8b1d83fa37bd8196
[INFO] running `Command { std: "docker" "start" "-a" "d6c532d0f9943ef597f8dbc9672fc0857532dff2606e3a0b8b1d83fa37bd8196", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking comprez_macro v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:38:62
[INFO] [stdout]    |
[INFO] [stdout] 38 | ...                   let equal_index = attr.find('=').ok_or_else(|| panic!("Error finding '=' in the attribute: {}", attr)).unwrap();
[INFO] [stdout]    |                                                        ^^^^^^^^^^ cannot infer type of the type parameter `E` declared on the method `ok_or_else`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 38 |                             let equal_index = attr.find('=').ok_or_else::<E, _>(|| panic!("Error finding '=' in the attribute: {}", attr)).unwrap();
[INFO] [stdout]    |                                                                        ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:38:62
[INFO] [stdout]    |
[INFO] [stdout] 38 | ...                   let equal_index = attr.find('=').ok_or_else(|| panic!("Error finding '=' in the attribute: {}", attr)).unwrap();
[INFO] [stdout]    |                                                        ^^^^^^^^^^ cannot infer type of the type parameter `E` declared on the method `ok_or_else`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 38 |                             let equal_index = attr.find('=').ok_or_else::<E, _>(|| panic!("Error finding '=' in the attribute: {}", attr)).unwrap();
[INFO] [stdout]    |                                                                        ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `comprez_macro` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `comprez_macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d6c532d0f9943ef597f8dbc9672fc0857532dff2606e3a0b8b1d83fa37bd8196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c532d0f9943ef597f8dbc9672fc0857532dff2606e3a0b8b1d83fa37bd8196", kill_on_drop: false }`
[INFO] [stdout] d6c532d0f9943ef597f8dbc9672fc0857532dff2606e3a0b8b1d83fa37bd8196