[INFO] fetching crate leap-lang 0.3.0...
[INFO] checking leap-lang-0.3.0 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate leap-lang 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate leap-lang 0.3.0 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 leap-lang 0.3.0
[INFO] finished tweaking crates.io crate leap-lang 0.3.0
[INFO] tweaked toml for crates.io crate leap-lang 0.3.0 written to /workspace/builds/worker-0-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] 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bf96e6b1d13044b250872bbabf5074cc6a99da4706bf6db1434e9a741fa0e28a
[INFO] running `Command { std: "docker" "start" "-a" "bf96e6b1d13044b250872bbabf5074cc6a99da4706bf6db1434e9a741fa0e28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf96e6b1d13044b250872bbabf5074cc6a99da4706bf6db1434e9a741fa0e28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf96e6b1d13044b250872bbabf5074cc6a99da4706bf6db1434e9a741fa0e28a", kill_on_drop: false }`
[INFO] [stdout] bf96e6b1d13044b250872bbabf5074cc6a99da4706bf6db1434e9a741fa0e28a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7067d4812ba2dbaf30d7f91f324568bd8498ab3a36c049282c92f372ce5d29ae
[INFO] running `Command { std: "docker" "start" "-a" "7067d4812ba2dbaf30d7f91f324568bd8498ab3a36c049282c92f372ce5d29ae", kill_on_drop: false }`
[INFO] [stderr]     Checking leap-lang v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/leaptypes.rs:650:35
[INFO] [stdout]     |
[INFO] [stdout] 630 |         for h in self.iter_types() {
[INFO] [stdout]     |                  -----------------
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  immutable borrow occurs here
[INFO] [stdout]     |                  immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 650 |                 let props = match self.get_type_mut(h) {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/leaptypes.rs:650:35
[INFO] [stdout]     |
[INFO] [stdout] 630 |         for h in self.iter_types() {
[INFO] [stdout]     |                  -----------------
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  immutable borrow occurs here
[INFO] [stdout]     |                  immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 650 |                 let props = match self.get_type_mut(h) {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leap-lang` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leap-lang` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7067d4812ba2dbaf30d7f91f324568bd8498ab3a36c049282c92f372ce5d29ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7067d4812ba2dbaf30d7f91f324568bd8498ab3a36c049282c92f372ce5d29ae", kill_on_drop: false }`
[INFO] [stdout] 7067d4812ba2dbaf30d7f91f324568bd8498ab3a36c049282c92f372ce5d29ae