[INFO] fetching crate upt 0.1.3...
[INFO] checking upt-0.1.3 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate upt 0.1.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate upt 0.1.3 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate upt 0.1.3
[INFO] finished tweaking crates.io crate upt 0.1.3
[INFO] tweaked toml for crates.io crate upt 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 296a8197278e24ed41bc937ce6ee08d67d8b04ce17268ba139538bf6ebf0af0d
[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" "296a8197278e24ed41bc937ce6ee08d67d8b04ce17268ba139538bf6ebf0af0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "296a8197278e24ed41bc937ce6ee08d67d8b04ce17268ba139538bf6ebf0af0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296a8197278e24ed41bc937ce6ee08d67d8b04ce17268ba139538bf6ebf0af0d", kill_on_drop: false }`
[INFO] [stdout] 296a8197278e24ed41bc937ce6ee08d67d8b04ce17268ba139538bf6ebf0af0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a2da1bca4db0df51b34b422f518c57f6c60b3b285c26ed650200fca41f25935
[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" "3a2da1bca4db0df51b34b422f518c57f6c60b3b285c26ed650200fca41f25935", kill_on_drop: false }`
[INFO] [stderr]     Checking upt v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/subcommand.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let mut name;
[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: cannot borrow `index_options` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/subcommand.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 140 |             match index_options
[INFO] [stdout]     |                   ------------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 146 |                     index_options.remove(*i - count_removed);
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/subcommand.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let mut name;
[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: cannot borrow `index_options` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/subcommand.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 140 |             match index_options
[INFO] [stdout]     |                   ------------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 146 |                     index_options.remove(*i - count_removed);
[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: unnecessary trailing semicolon
[INFO] [stdout]  --> src/main.rs:9:59
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let (bin, remainer) = env_args.split_first().unwrap();;
[INFO] [stdout]   |                                                           ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> src/main.rs:9:59
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let (bin, remainer) = env_args.split_first().unwrap();;
[INFO] [stdout]   |                                                           ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "3a2da1bca4db0df51b34b422f518c57f6c60b3b285c26ed650200fca41f25935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a2da1bca4db0df51b34b422f518c57f6c60b3b285c26ed650200fca41f25935", kill_on_drop: false }`
[INFO] [stdout] 3a2da1bca4db0df51b34b422f518c57f6c60b3b285c26ed650200fca41f25935