[INFO] fetching crate magic-school-bus 0.7.0...
[INFO] checking magic-school-bus-0.7.0 against beta for pr-78714
[INFO] extracting crate magic-school-bus 0.7.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate magic-school-bus 0.7.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate magic-school-bus 0.7.0
[INFO] finished tweaking crates.io crate magic-school-bus 0.7.0
[INFO] tweaked toml for crates.io crate magic-school-bus 0.7.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91e6070d73dfc431eab4ac2760644d85b09f8f5d6dd9dbaa13af45b311c18fbf
[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" "91e6070d73dfc431eab4ac2760644d85b09f8f5d6dd9dbaa13af45b311c18fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91e6070d73dfc431eab4ac2760644d85b09f8f5d6dd9dbaa13af45b311c18fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91e6070d73dfc431eab4ac2760644d85b09f8f5d6dd9dbaa13af45b311c18fbf", kill_on_drop: false }`
[INFO] [stdout] 91e6070d73dfc431eab4ac2760644d85b09f8f5d6dd9dbaa13af45b311c18fbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcea35b974ef2d5f27736471c346a43f03ee70663358b962c76ebd5a3717e462
[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" "bcea35b974ef2d5f27736471c346a43f03ee70663358b962c76ebd5a3717e462", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking all_term v0.1.0
[INFO] [stderr]     Checking magic-school-bus v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/input_state.rs:114:41
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     Key::Char(char @ '0'...'9') => {
[INFO] [stdout]     |                                         ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/input_state.rs:114:41
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     Key::Char(char @ '0'...'9') => {
[INFO] [stdout]     |                                         ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/app_state.rs:217:25
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 let entry = &self.entries[self.cursor];
[INFO] [stdout]     |                              ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 217 |                         self.set_working_directory(entry.path.clone());
[INFO] [stdout]     |                         ^^^^                       ---------- immutable borrow later used here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/app_state.rs:217:25
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 let entry = &self.entries[self.cursor];
[INFO] [stdout]     |                              ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 217 |                         self.set_working_directory(entry.path.clone());
[INFO] [stdout]     |                         ^^^^                       ---------- immutable borrow later used here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "bcea35b974ef2d5f27736471c346a43f03ee70663358b962c76ebd5a3717e462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcea35b974ef2d5f27736471c346a43f03ee70663358b962c76ebd5a3717e462", kill_on_drop: false }`
[INFO] [stdout] bcea35b974ef2d5f27736471c346a43f03ee70663358b962c76ebd5a3717e462