[INFO] crate stringtree 0.2.0 is already in cache
[INFO] checking stringtree-0.2.0 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate stringtree 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate stringtree 0.2.0 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate stringtree 0.2.0
[INFO] finished tweaking crates.io crate stringtree 0.2.0
[INFO] tweaked toml for crates.io crate stringtree 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 40fb4146d3427af8a76cabad67714860aea31ed941bcb2eac37e9e6c575cdee5
[INFO] running `"docker" "start" "-a" "40fb4146d3427af8a76cabad67714860aea31ed941bcb2eac37e9e6c575cdee5"`
[INFO] [stderr]     Checking stringtree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl StringTree {
[INFO] [stderr]    |      ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(s: &[&StringTree]) -> StringTreeBuf {
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:73:44
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub type StringTreeOption<'a> = Option<&'a StringTree>;
[INFO] [stderr]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:84:29
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub type StringTreeFn = Box<Fn() -> &'static str>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> &'static str`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl StringTree {
[INFO] [stderr]    |      ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(s: &[&StringTree]) -> StringTreeBuf {
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:73:44
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub type StringTreeOption<'a> = Option<&'a StringTree>;
[INFO] [stderr]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:84:29
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub type StringTreeFn = Box<Fn() -> &'static str>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> &'static str`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |         let c: &StringTree = &StringTree::new(&[&"opt"]);
[INFO] [stderr]     |                 ^^^^^^^^^^ help: use `dyn`: `dyn StringTree`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "40fb4146d3427af8a76cabad67714860aea31ed941bcb2eac37e9e6c575cdee5"`
[INFO] running `"docker" "rm" "-f" "40fb4146d3427af8a76cabad67714860aea31ed941bcb2eac37e9e6c575cdee5"`
[INFO] [stdout] 40fb4146d3427af8a76cabad67714860aea31ed941bcb2eac37e9e6c575cdee5