[INFO] cloning repository https://github.com/rust-lang-nursery/polonius [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/polonius" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fpolonius", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fpolonius'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 696ff5838b074dc9bdd8fa862ac5841cdc7e0447 [INFO] checking rust-lang-nursery/polonius against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fpolonius" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rust-lang-nursery/polonius on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-13/source/rust-toolchain [INFO] started tweaking git repo https://github.com/rust-lang-nursery/polonius [INFO] finished tweaking git repo https://github.com/rust-lang-nursery/polonius [INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/polonius written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/rust-lang-nursery/polonius already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lalrpop-util v0.19.5 [INFO] [stderr] Downloaded crunchy v0.2.2 [INFO] [stderr] Downloaded datafrog v2.0.1 [INFO] [stderr] Downloaded libc v0.2.91 [INFO] [stderr] Downloaded tiny-keccak v2.0.2 [INFO] [stderr] Downloaded lalrpop v0.19.5 [INFO] [stderr] Downloaded pico-args v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 967d15dc2eb49e2e7ccc11c895ecb4bee3beaceb59fb8f3f81d2aa9ca186be69 [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" "967d15dc2eb49e2e7ccc11c895ecb4bee3beaceb59fb8f3f81d2aa9ca186be69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "967d15dc2eb49e2e7ccc11c895ecb4bee3beaceb59fb8f3f81d2aa9ca186be69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "967d15dc2eb49e2e7ccc11c895ecb4bee3beaceb59fb8f3f81d2aa9ca186be69", kill_on_drop: false }` [INFO] [stdout] 967d15dc2eb49e2e7ccc11c895ecb4bee3beaceb59fb8f3f81d2aa9ca186be69 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c807c7c4b8b29164a2f1a54ef342af3b45212d3d5cff8bac79b6e5fcb04c0c37 [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" "c807c7c4b8b29164a2f1a54ef342af3b45212d3d5cff8bac79b6e5fcb04c0c37", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling siphasher v0.3.5 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking datafrog v2.0.1 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking pico-args v0.2.0 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling string_cache v0.8.1 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Checking polonius-engine v0.12.1 (/opt/rustwide/workdir/polonius-engine) [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stdout] warning: field is never read: `potential_errors` [INFO] [stdout] --> polonius-engine/src/output/mod.rs:140:5 [INFO] [stdout] | [INFO] [stdout] 140 | potential_errors: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `potential_errors` [INFO] [stdout] --> polonius-engine/src/output/mod.rs:140:5 [INFO] [stdout] | [INFO] [stdout] 140 | potential_errors: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking polonius v0.7.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking lalrpop-util v0.19.5 [INFO] [stderr] Compiling lalrpop v0.19.5 [INFO] [stderr] Compiling polonius-parser v0.4.0 (/opt/rustwide/workdir/polonius-parser) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 42s [INFO] running `Command { std: "docker" "inspect" "c807c7c4b8b29164a2f1a54ef342af3b45212d3d5cff8bac79b6e5fcb04c0c37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c807c7c4b8b29164a2f1a54ef342af3b45212d3d5cff8bac79b6e5fcb04c0c37", kill_on_drop: false }` [INFO] [stdout] c807c7c4b8b29164a2f1a54ef342af3b45212d3d5cff8bac79b6e5fcb04c0c37