[INFO] fetching crate light_arena 1.0.1...
[INFO] checking light_arena-1.0.1 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate light_arena 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate light_arena 1.0.1 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate light_arena 1.0.1
[INFO] finished tweaking crates.io crate light_arena 1.0.1
[INFO] tweaked toml for crates.io crate light_arena 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00b917c25b37f6fd4b4c07d00e910d943c71aa01e51e7b7653beb414cf4e1327
[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" "00b917c25b37f6fd4b4c07d00e910d943c71aa01e51e7b7653beb414cf4e1327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00b917c25b37f6fd4b4c07d00e910d943c71aa01e51e7b7653beb414cf4e1327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00b917c25b37f6fd4b4c07d00e910d943c71aa01e51e7b7653beb414cf4e1327", kill_on_drop: false }`
[INFO] [stdout] 00b917c25b37f6fd4b4c07d00e910d943c71aa01e51e7b7653beb414cf4e1327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 390fd958404c0c3b0075344b843dfa97da759734ed994e4183da5a78dba5b9c0
[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" "390fd958404c0c3b0075344b843dfa97da759734ed994e4183da5a78dba5b9c0", kill_on_drop: false }`
[INFO] [stderr]     Checking light_arena v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lib.rs:181:15
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let add: &Eval = allocator.alloc(Add(4));
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Eval`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lib.rs:182:15
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let sub: &Eval = allocator.alloc(Subtract { x: 2 });
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lib.rs:183:15
[INFO] [stdout]     |
[INFO] [stdout] 183 |     let shl: &Eval = allocator.alloc(ShiftLeft);
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lib.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let clamp: &Eval = allocator.alloc(Clamp::new(-2, 3));
[INFO] [stdout]     |                 ^^^^ help: use `dyn`: `dyn Eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "390fd958404c0c3b0075344b843dfa97da759734ed994e4183da5a78dba5b9c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390fd958404c0c3b0075344b843dfa97da759734ed994e4183da5a78dba5b9c0", kill_on_drop: false }`
[INFO] [stdout] 390fd958404c0c3b0075344b843dfa97da759734ed994e4183da5a78dba5b9c0