[INFO] fetching crate sce 0.2.0...
[INFO] checking sce-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate sce 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sce 0.2.0 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 sce 0.2.0
[INFO] finished tweaking crates.io crate sce 0.2.0
[INFO] tweaked toml for crates.io crate sce 0.2.0 written to /workspace/builds/worker-4-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 46 packages
[INFO] [stderr]       Adding approx v0.3.2 (latest: v0.5.1)
[INFO] [stderr]       Adding num-complex v0.2.4 (latest: v0.4.5)
[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 trait-set v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] beb3b0c6edbb46e7797c94207ae54e4bfa90530c492f452dfb3283d6fac41bf6
[INFO] running `Command { std: "docker" "start" "-a" "beb3b0c6edbb46e7797c94207ae54e4bfa90530c492f452dfb3283d6fac41bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beb3b0c6edbb46e7797c94207ae54e4bfa90530c492f452dfb3283d6fac41bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb3b0c6edbb46e7797c94207ae54e4bfa90530c492f452dfb3283d6fac41bf6", kill_on_drop: false }`
[INFO] [stdout] beb3b0c6edbb46e7797c94207ae54e4bfa90530c492f452dfb3283d6fac41bf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 169bcc5a91946860e5a0ba8ca87b9ff731e04866e8b886525a39ab0cfff6987b
[INFO] running `Command { std: "docker" "start" "-a" "169bcc5a91946860e5a0ba8ca87b9ff731e04866e8b886525a39ab0cfff6987b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling trait-set v0.3.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking sprs v0.11.1
[INFO] [stderr]     Checking sce v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.25s
[INFO] running `Command { std: "docker" "inspect" "169bcc5a91946860e5a0ba8ca87b9ff731e04866e8b886525a39ab0cfff6987b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169bcc5a91946860e5a0ba8ca87b9ff731e04866e8b886525a39ab0cfff6987b", kill_on_drop: false }`
[INFO] [stdout] 169bcc5a91946860e5a0ba8ca87b9ff731e04866e8b886525a39ab0cfff6987b
[INFO] checking sce-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate sce 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate sce 0.2.0 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 sce 0.2.0
[INFO] finished tweaking crates.io crate sce 0.2.0
[INFO] tweaked toml for crates.io crate sce 0.2.0 written to /workspace/builds/worker-4-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 46 packages
[INFO] [stderr]       Adding approx v0.3.2 (latest: v0.5.1)
[INFO] [stderr]       Adding num-complex v0.2.4 (latest: v0.4.5)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c62de54f4224a192e567e3ba0dc3d9a93642199ddb2f061ab2fd85c1f4b8107d
[INFO] running `Command { std: "docker" "start" "-a" "c62de54f4224a192e567e3ba0dc3d9a93642199ddb2f061ab2fd85c1f4b8107d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c62de54f4224a192e567e3ba0dc3d9a93642199ddb2f061ab2fd85c1f4b8107d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62de54f4224a192e567e3ba0dc3d9a93642199ddb2f061ab2fd85c1f4b8107d", kill_on_drop: false }`
[INFO] [stdout] c62de54f4224a192e567e3ba0dc3d9a93642199ddb2f061ab2fd85c1f4b8107d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 82a2707709e2e1e218c8147da111adc9628b5a8fe3a02052e9f724c2ef016488
[INFO] running `Command { std: "docker" "start" "-a" "82a2707709e2e1e218c8147da111adc9628b5a8fe3a02052e9f724c2ef016488", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling trait-set v0.3.0
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking sprs v0.11.1
[INFO] [stderr]     Checking sce v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.34s
[INFO] running `Command { std: "docker" "inspect" "82a2707709e2e1e218c8147da111adc9628b5a8fe3a02052e9f724c2ef016488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82a2707709e2e1e218c8147da111adc9628b5a8fe3a02052e9f724c2ef016488", kill_on_drop: false }`
[INFO] [stdout] 82a2707709e2e1e218c8147da111adc9628b5a8fe3a02052e9f724c2ef016488