[INFO] fetching crate interval_set 0.1.2...
[INFO] checking interval_set-0.1.2 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate interval_set 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate interval_set 0.1.2 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate interval_set 0.1.2
[INFO] finished tweaking crates.io crate interval_set 0.1.2
[INFO] tweaked toml for crates.io crate interval_set 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b2fc98986fe89b5948a041a305b9fcc321455bcd6e41b6e2ccb31baef765d82
[INFO] running `Command { std: "docker" "start" "-a" "5b2fc98986fe89b5948a041a305b9fcc321455bcd6e41b6e2ccb31baef765d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2fc98986fe89b5948a041a305b9fcc321455bcd6e41b6e2ccb31baef765d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2fc98986fe89b5948a041a305b9fcc321455bcd6e41b6e2ccb31baef765d82", kill_on_drop: false }`
[INFO] [stdout] 5b2fc98986fe89b5948a041a305b9fcc321455bcd6e41b6e2ccb31baef765d82
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02a266f516623cbe97b0c72cf606f6245360abcd1cdb76bc0462d085a80673d7
[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" "02a266f516623cbe97b0c72cf606f6245360abcd1cdb76bc0462d085a80673d7", kill_on_drop: false }`
[INFO] [stderr]     Checking interval_set v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/libinterval_set/interval_set.rs:366:54
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn merge(self, rhs: IntervalSet, keep_operator: &Fn(bool, bool) -> bool) -> IntervalSet {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(bool, bool) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/libinterval_set/interval_set.rs:366:54
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn merge(self, rhs: IntervalSet, keep_operator: &Fn(bool, bool) -> bool) -> IntervalSet {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(bool, bool) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/libinterval_set/interval_set.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let mut iter = self.split_whitespace();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/libinterval_set/interval_set.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let mut iter = self.split_whitespace();
[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: 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 0.27s
[INFO] running `Command { std: "docker" "inspect" "02a266f516623cbe97b0c72cf606f6245360abcd1cdb76bc0462d085a80673d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a266f516623cbe97b0c72cf606f6245360abcd1cdb76bc0462d085a80673d7", kill_on_drop: false }`
[INFO] [stdout] 02a266f516623cbe97b0c72cf606f6245360abcd1cdb76bc0462d085a80673d7