[INFO] fetching crate jomini_derive 0.2.3...
[INFO] checking jomini_derive-0.2.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate jomini_derive 0.2.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate jomini_derive 0.2.3 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 jomini_derive 0.2.3
[INFO] finished tweaking crates.io crate jomini_derive 0.2.3
[INFO] tweaked toml for crates.io crate jomini_derive 0.2.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate jomini_derive 0.2.3 already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trybuild v1.0.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 56966e1c7b7a44fde5628cd08670be82546d18e4535af8472158995b7f8d3b26
[INFO] running `Command { std: "docker" "start" "-a" "56966e1c7b7a44fde5628cd08670be82546d18e4535af8472158995b7f8d3b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56966e1c7b7a44fde5628cd08670be82546d18e4535af8472158995b7f8d3b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56966e1c7b7a44fde5628cd08670be82546d18e4535af8472158995b7f8d3b26", kill_on_drop: false }`
[INFO] [stdout] 56966e1c7b7a44fde5628cd08670be82546d18e4535af8472158995b7f8d3b26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] dd42c08b4c4887073d42866571b889324477cff11ff4766acc5d6243af2759df
[INFO] running `Command { std: "docker" "start" "-a" "dd42c08b4c4887073d42866571b889324477cff11ff4766acc5d6243af2759df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling trybuild v1.0.82
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.32
[INFO] [stderr]     Checking jomini_derive v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking basic-toml v0.1.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "dd42c08b4c4887073d42866571b889324477cff11ff4766acc5d6243af2759df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd42c08b4c4887073d42866571b889324477cff11ff4766acc5d6243af2759df", kill_on_drop: false }`
[INFO] [stdout] dd42c08b4c4887073d42866571b889324477cff11ff4766acc5d6243af2759df
[INFO] checking jomini_derive-0.2.3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate jomini_derive 0.2.3 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate jomini_derive 0.2.3 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 jomini_derive 0.2.3
[INFO] finished tweaking crates.io crate jomini_derive 0.2.3
[INFO] tweaked toml for crates.io crate jomini_derive 0.2.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate jomini_derive 0.2.3 already has a lockfile, it will not be regenerated
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 881ab33ab843a12a390ad2503a580b91ae131bb7456d2a27a9b97578d46c1f70
[INFO] running `Command { std: "docker" "start" "-a" "881ab33ab843a12a390ad2503a580b91ae131bb7456d2a27a9b97578d46c1f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "881ab33ab843a12a390ad2503a580b91ae131bb7456d2a27a9b97578d46c1f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "881ab33ab843a12a390ad2503a580b91ae131bb7456d2a27a9b97578d46c1f70", kill_on_drop: false }`
[INFO] [stdout] 881ab33ab843a12a390ad2503a580b91ae131bb7456d2a27a9b97578d46c1f70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] aaa4123aad5f8ee15d70d6456717c10f34f1a6f3a1c142ce6e4b2e272bc96e97
[INFO] running `Command { std: "docker" "start" "-a" "aaa4123aad5f8ee15d70d6456717c10f34f1a6f3a1c142ce6e4b2e272bc96e97", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling trybuild v1.0.82
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.183/src/lib_precompiled.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "aaa4123aad5f8ee15d70d6456717c10f34f1a6f3a1c142ce6e4b2e272bc96e97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa4123aad5f8ee15d70d6456717c10f34f1a6f3a1c142ce6e4b2e272bc96e97", kill_on_drop: false }`
[INFO] [stdout] aaa4123aad5f8ee15d70d6456717c10f34f1a6f3a1c142ce6e4b2e272bc96e97