[INFO] fetching crate conjecture 0.4.0... [INFO] checking conjecture-0.4.0 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470 [INFO] extracting crate conjecture 0.4.0 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate conjecture 0.4.0 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate conjecture 0.4.0 [INFO] finished tweaking crates.io crate conjecture 0.4.0 [INFO] tweaked toml for crates.io crate conjecture 0.4.0 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e13e03ff3a30bc54f437ec68c84d82925b9bb9270226ffe9fd6820ec0083e24d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e13e03ff3a30bc54f437ec68c84d82925b9bb9270226ffe9fd6820ec0083e24d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e13e03ff3a30bc54f437ec68c84d82925b9bb9270226ffe9fd6820ec0083e24d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e13e03ff3a30bc54f437ec68c84d82925b9bb9270226ffe9fd6820ec0083e24d", kill_on_drop: false }` [INFO] [stdout] e13e03ff3a30bc54f437ec68c84d82925b9bb9270226ffe9fd6820ec0083e24d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 946767c1718009be25f20bd3c12041a9170353ef7b07d67c16ff7778324f311b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "946767c1718009be25f20bd3c12041a9170353ef7b07d67c16ff7778324f311b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling cc v1.0.66 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling openssl v0.10.31 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling openssl-sys v0.9.59 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Checking crypto-hash v0.3.4 [INFO] [stderr] Checking conjecture v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:17:30 [INFO] [stdout] | [INFO] [stdout] 17 | pub type BoxedDatabase = Box; [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Database` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database.rs:17:30 [INFO] [stdout] | [INFO] [stdout] 17 | pub type BoxedDatabase = Box; [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Database` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/engine.rs:157:21 [INFO] [stdout] | [INFO] [stdout] 157 | let mut minimized_examples = &mut self.minimized_examples; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/engine.rs:158:21 [INFO] [stdout] | [INFO] [stdout] 158 | let mut database = &mut self.database; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/engine.rs:157:21 [INFO] [stdout] | [INFO] [stdout] 157 | let mut minimized_examples = &mut self.minimized_examples; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/engine.rs:158:21 [INFO] [stdout] | [INFO] [stdout] 158 | let mut database = &mut self.database; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.87s [INFO] running `Command { std: "docker" "inspect" "946767c1718009be25f20bd3c12041a9170353ef7b07d67c16ff7778324f311b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "946767c1718009be25f20bd3c12041a9170353ef7b07d67c16ff7778324f311b", kill_on_drop: false }` [INFO] [stdout] 946767c1718009be25f20bd3c12041a9170353ef7b07d67c16ff7778324f311b