[INFO] fetching crate forktree 2.1.2... [INFO] checking forktree-2.1.2 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950 [INFO] extracting crate forktree 2.1.2 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate forktree 2.1.2 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate forktree 2.1.2 [INFO] finished tweaking crates.io crate forktree 2.1.2 [INFO] tweaked toml for crates.io crate forktree 2.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] af7ab519e2a66c162ccf48699502acbda756843953ee7186b6fcc00a299c75b9 [INFO] running `Command { std: "docker" "start" "-a" "af7ab519e2a66c162ccf48699502acbda756843953ee7186b6fcc00a299c75b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "af7ab519e2a66c162ccf48699502acbda756843953ee7186b6fcc00a299c75b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af7ab519e2a66c162ccf48699502acbda756843953ee7186b6fcc00a299c75b9", kill_on_drop: false }` [INFO] [stdout] af7ab519e2a66c162ccf48699502acbda756843953ee7186b6fcc00a299c75b9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b23d17fa91bab2ab86e6a507cc13b3bec39f9e8c89ec4c0105a11973a657edcf [INFO] running `Command { std: "docker" "start" "-a" "b23d17fa91bab2ab86e6a507cc13b3bec39f9e8c89ec4c0105a11973a657edcf", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking wyz v0.2.0 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking funty v1.1.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking bitvec v0.20.4 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling tetsy-scale-codec-derive v2.0.1 [INFO] [stderr] Checking tetsy-scale-codec v2.0.1 [INFO] [stderr] Checking forktree v2.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0502]: cannot borrow `tree.roots` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/lib.rs:1484:4 [INFO] [stdout] | [INFO] [stdout] 1476 | let removed = tree.prune( [INFO] [stdout] | ---- mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1484 | tree.roots.iter().map(|node| node.hash).collect::>(), [INFO] [stdout] | ^^^^^^^^^^ immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1494 | removed.map(|(hash, _, _)| hash).collect::>(), [INFO] [stdout] | ------- mutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `tree` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/lib.rs:1489:4 [INFO] [stdout] | [INFO] [stdout] 1476 | let removed = tree.prune( [INFO] [stdout] | ---- mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1489 | tree.iter().map(|(hash, _, _)| *hash).collect::>(), [INFO] [stdout] | ^^^^ immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1494 | removed.map(|(hash, _, _)| hash).collect::>(), [INFO] [stdout] | ------- mutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `tree.roots` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/lib.rs:1506:4 [INFO] [stdout] | [INFO] [stdout] 1498 | let removed = tree.prune( [INFO] [stdout] | ---- mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1506 | tree.roots.iter().map(|node| node.hash).collect::>(), [INFO] [stdout] | ^^^^^^^^^^ immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1516 | removed.map(|(hash, _, _)| hash).collect::>(), [INFO] [stdout] | ------- mutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `tree` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/lib.rs:1511:4 [INFO] [stdout] | [INFO] [stdout] 1498 | let removed = tree.prune( [INFO] [stdout] | ---- mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1511 | tree.iter().map(|(hash, _, _)| *hash).collect::>(), [INFO] [stdout] | ^^^^ immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 1516 | removed.map(|(hash, _, _)| hash).collect::>(), [INFO] [stdout] | ------- mutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] error: could not compile `forktree` (lib test) due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "b23d17fa91bab2ab86e6a507cc13b3bec39f9e8c89ec4c0105a11973a657edcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b23d17fa91bab2ab86e6a507cc13b3bec39f9e8c89ec4c0105a11973a657edcf", kill_on_drop: false }` [INFO] [stdout] b23d17fa91bab2ab86e6a507cc13b3bec39f9e8c89ec4c0105a11973a657edcf