[INFO] fetching crate erasable 1.2.1...
[INFO] checking erasable-1.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate erasable 1.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate erasable 1.2.1 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 erasable 1.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate erasable 1.2.1
[INFO] tweaked toml for crates.io crate erasable 1.2.1 written to /workspace/builds/worker-1-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 4 packages
[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-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] 68967b4962d366ba999f917ff072b1ad7180bebf137fc575e5e4fb41eaa5017c
[INFO] running `Command { std: "docker" "start" "-a" "68967b4962d366ba999f917ff072b1ad7180bebf137fc575e5e4fb41eaa5017c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68967b4962d366ba999f917ff072b1ad7180bebf137fc575e5e4fb41eaa5017c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68967b4962d366ba999f917ff072b1ad7180bebf137fc575e5e4fb41eaa5017c", kill_on_drop: false }`
[INFO] [stdout] 68967b4962d366ba999f917ff072b1ad7180bebf137fc575e5e4fb41eaa5017c
[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] e2d346f86200d189ae2620801fca5293b3c427d660533cd5591b8e0fb94a0df8
[INFO] running `Command { std: "docker" "start" "-a" "e2d346f86200d189ae2620801fca5293b3c427d660533cd5591b8e0fb94a0df8", kill_on_drop: false }`
[INFO] [stderr]    Compiling erasable v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "e2d346f86200d189ae2620801fca5293b3c427d660533cd5591b8e0fb94a0df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d346f86200d189ae2620801fca5293b3c427d660533cd5591b8e0fb94a0df8", kill_on_drop: false }`
[INFO] [stdout] e2d346f86200d189ae2620801fca5293b3c427d660533cd5591b8e0fb94a0df8
[INFO] checking erasable-1.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate erasable 1.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate erasable 1.2.1 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 erasable 1.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate erasable 1.2.1
[INFO] tweaked toml for crates.io crate erasable 1.2.1 written to /workspace/builds/worker-1-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-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] 7fe807fcdd94b57fd2a4907f40ba53540130791a109113ba044a41ed75e3b951
[INFO] running `Command { std: "docker" "start" "-a" "7fe807fcdd94b57fd2a4907f40ba53540130791a109113ba044a41ed75e3b951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fe807fcdd94b57fd2a4907f40ba53540130791a109113ba044a41ed75e3b951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe807fcdd94b57fd2a4907f40ba53540130791a109113ba044a41ed75e3b951", kill_on_drop: false }`
[INFO] [stdout] 7fe807fcdd94b57fd2a4907f40ba53540130791a109113ba044a41ed75e3b951
[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] 9ee543ff8c1c3ece768cd250d409cc98f3a134146de7fcb2e95940ad37bdb802
[INFO] running `Command { std: "docker" "start" "-a" "9ee543ff8c1c3ece768cd250d409cc98f3a134146de7fcb2e95940ad37bdb802", kill_on_drop: false }`
[INFO] [stderr]    Compiling erasable v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/abuse.rs:63:61
[INFO] [stdout]    |
[INFO] [stdout] 63 |     std::panic::catch_unwind(move || Thin::with_mut(&mut b, |_| panic!())).unwrap_err();
[INFO] [stdout]    |                                                             ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 63 |     std::panic::catch_unwind(move || Thin::with_mut(&mut b, |_| -> /* Type */ panic!())).unwrap_err();
[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 `erasable` (test "abuse") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9ee543ff8c1c3ece768cd250d409cc98f3a134146de7fcb2e95940ad37bdb802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee543ff8c1c3ece768cd250d409cc98f3a134146de7fcb2e95940ad37bdb802", kill_on_drop: false }`
[INFO] [stdout] 9ee543ff8c1c3ece768cd250d409cc98f3a134146de7fcb2e95940ad37bdb802