[INFO] fetching crate aph_disjoint_set 0.1.1...
[INFO] checking aph_disjoint_set-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate aph_disjoint_set 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate aph_disjoint_set 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aph_disjoint_set 0.1.1
[INFO] finished tweaking crates.io crate aph_disjoint_set 0.1.1
[INFO] tweaked toml for crates.io crate aph_disjoint_set 0.1.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding rstest v0.17.0 (latest: v0.18.2)
[INFO] [stderr]       Adding rstest_macros v0.17.0 (latest: v0.18.2)
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.10.5
[INFO] [stderr]   Downloaded rstest_macros v0.17.0
[INFO] [stderr]   Downloaded rstest v0.17.0
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f19364a9c20642793ed3361b28b0c71359a1d9500838a4f45a64998a1c80ad05
[INFO] running `Command { std: "docker" "start" "-a" "f19364a9c20642793ed3361b28b0c71359a1d9500838a4f45a64998a1c80ad05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f19364a9c20642793ed3361b28b0c71359a1d9500838a4f45a64998a1c80ad05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f19364a9c20642793ed3361b28b0c71359a1d9500838a4f45a64998a1c80ad05", kill_on_drop: false }`
[INFO] [stdout] f19364a9c20642793ed3361b28b0c71359a1d9500838a4f45a64998a1c80ad05
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d77173409c1dd75b2c7068dfc85669c26f60ac85e04824eee0bca9c16e1e1ff
[INFO] running `Command { std: "docker" "start" "-a" "2d77173409c1dd75b2c7068dfc85669c26f60ac85e04824eee0bca9c16e1e1ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking aph_disjoint_set v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rstest_macros v0.17.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rstest v0.17.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "2d77173409c1dd75b2c7068dfc85669c26f60ac85e04824eee0bca9c16e1e1ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d77173409c1dd75b2c7068dfc85669c26f60ac85e04824eee0bca9c16e1e1ff", kill_on_drop: false }`
[INFO] [stdout] 2d77173409c1dd75b2c7068dfc85669c26f60ac85e04824eee0bca9c16e1e1ff
[INFO] checking aph_disjoint_set-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate aph_disjoint_set 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate aph_disjoint_set 0.1.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aph_disjoint_set 0.1.1
[INFO] finished tweaking crates.io crate aph_disjoint_set 0.1.1
[INFO] tweaked toml for crates.io crate aph_disjoint_set 0.1.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding rstest v0.17.0 (latest: v0.18.2)
[INFO] [stderr]       Adding rstest_macros v0.17.0 (latest: v0.18.2)
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 289576418c80dab42b6f27e0110b700abc262f19fd7c56b8ee8c829487575c88
[INFO] running `Command { std: "docker" "start" "-a" "289576418c80dab42b6f27e0110b700abc262f19fd7c56b8ee8c829487575c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "289576418c80dab42b6f27e0110b700abc262f19fd7c56b8ee8c829487575c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289576418c80dab42b6f27e0110b700abc262f19fd7c56b8ee8c829487575c88", kill_on_drop: false }`
[INFO] [stdout] 289576418c80dab42b6f27e0110b700abc262f19fd7c56b8ee8c829487575c88
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33a16f7cd253c6514280091f8a70452747e075b7af3d4a5476fc5ba73cb4bc49
[INFO] running `Command { std: "docker" "start" "-a" "33a16f7cd253c6514280091f8a70452747e075b7af3d4a5476fc5ba73cb4bc49", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking aph_disjoint_set v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rstest_macros v0.17.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rstest v0.17.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "33a16f7cd253c6514280091f8a70452747e075b7af3d4a5476fc5ba73cb4bc49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a16f7cd253c6514280091f8a70452747e075b7af3d4a5476fc5ba73cb4bc49", kill_on_drop: false }`
[INFO] [stdout] 33a16f7cd253c6514280091f8a70452747e075b7af3d4a5476fc5ba73cb4bc49