[INFO] cloning repository https://github.com/mariocao/bls-signatures-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mariocao/bls-signatures-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariocao%2Fbls-signatures-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariocao%2Fbls-signatures-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bec995125502465de546f91c238637290a2e92e8 [INFO] checking mariocao/bls-signatures-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariocao%2Fbls-signatures-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mariocao/bls-signatures-rs 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 git repo https://github.com/mariocao/bls-signatures-rs [INFO] finished tweaking git repo https://github.com/mariocao/bls-signatures-rs [INFO] tweaked toml for git repo https://github.com/mariocao/bls-signatures-rs 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 57 packages [INFO] [stderr] Adding autocfg v0.1.8 (latest: v1.2.0) [INFO] [stderr] Adding block-buffer v0.7.3 (latest: v0.10.4) [INFO] [stderr] Adding block-padding v0.1.5 (latest: v0.3.3) [INFO] [stderr] Adding digest v0.8.1 (latest: v0.10.7) [INFO] [stderr] Adding generic-array v0.12.4 (latest: v1.0.0) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding opaque-debug v0.2.3 (latest: v0.3.1) [INFO] [stderr] Adding rand v0.6.5 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (latest: v0.4.0) [INFO] [stderr] Adding rand_pcg v0.1.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding sha2 v0.8.2 (latest: v0.10.8) [INFO] [stderr] Adding spin v0.5.2 (latest: v0.9.8) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding synstructure v0.12.6 (latest: v0.13.1) [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 witnet-bn v0.4.5 [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] 4f1fdd2fb5168eb023e45499d985f21ea94ab900e0300e5dce0da04a0b5fcd48 [INFO] running `Command { std: "docker" "start" "-a" "4f1fdd2fb5168eb023e45499d985f21ea94ab900e0300e5dce0da04a0b5fcd48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f1fdd2fb5168eb023e45499d985f21ea94ab900e0300e5dce0da04a0b5fcd48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f1fdd2fb5168eb023e45499d985f21ea94ab900e0300e5dce0da04a0b5fcd48", kill_on_drop: false }` [INFO] [stdout] 4f1fdd2fb5168eb023e45499d985f21ea94ab900e0300e5dce0da04a0b5fcd48 [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] f926758c5a5e528fb93080e13cb8db069730095c67eacd9d5ae3b7de4192753a [INFO] running `Command { std: "docker" "start" "-a" "f926758c5a5e528fb93080e13cb8db069730095c67eacd9d5ae3b7de4192753a", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking generic-array v0.12.4 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking rustc-hex v2.1.0 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking sha2 v0.8.2 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Checking witnet-bn v0.4.5 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking bls-signatures-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.70s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: witnet-bn v0.4.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5` [INFO] running `Command { std: "docker" "inspect" "f926758c5a5e528fb93080e13cb8db069730095c67eacd9d5ae3b7de4192753a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f926758c5a5e528fb93080e13cb8db069730095c67eacd9d5ae3b7de4192753a", kill_on_drop: false }` [INFO] [stdout] f926758c5a5e528fb93080e13cb8db069730095c67eacd9d5ae3b7de4192753a [INFO] checking mariocao/bls-signatures-rs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariocao%2Fbls-signatures-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mariocao/bls-signatures-rs on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mariocao/bls-signatures-rs [INFO] finished tweaking git repo https://github.com/mariocao/bls-signatures-rs [INFO] tweaked toml for git repo https://github.com/mariocao/bls-signatures-rs 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b4e281d14d74269b2585359548e2d17a65de222f7932b5f71b58ba279cf65d9c [INFO] running `Command { std: "docker" "start" "-a" "b4e281d14d74269b2585359548e2d17a65de222f7932b5f71b58ba279cf65d9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b4e281d14d74269b2585359548e2d17a65de222f7932b5f71b58ba279cf65d9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4e281d14d74269b2585359548e2d17a65de222f7932b5f71b58ba279cf65d9c", kill_on_drop: false }` [INFO] [stdout] b4e281d14d74269b2585359548e2d17a65de222f7932b5f71b58ba279cf65d9c [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c55aa9d2045ae54a1fa3d533754cd62eaa73225ffb5a833a4a577bfb1e040c9e [INFO] running `Command { std: "docker" "start" "-a" "c55aa9d2045ae54a1fa3d533754cd62eaa73225ffb5a833a4a577bfb1e040c9e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Checking generic-array v0.12.4 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking rustc-hex v2.1.0 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking sha2 v0.8.2 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Checking witnet-bn v0.4.5 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking bls-signatures-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.67s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: witnet-bn v0.4.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4` [INFO] running `Command { std: "docker" "inspect" "c55aa9d2045ae54a1fa3d533754cd62eaa73225ffb5a833a4a577bfb1e040c9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c55aa9d2045ae54a1fa3d533754cd62eaa73225ffb5a833a4a577bfb1e040c9e", kill_on_drop: false }` [INFO] [stdout] c55aa9d2045ae54a1fa3d533754cd62eaa73225ffb5a833a4a577bfb1e040c9e