[INFO] fetching crate ternary-tree 0.0.6...
[INFO] checking ternary-tree-0.0.6 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate ternary-tree 0.0.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ternary-tree 0.0.6 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ternary-tree 0.0.6
[INFO] finished tweaking crates.io crate ternary-tree 0.0.6
[INFO] tweaked toml for crates.io crate ternary-tree 0.0.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] b407fb3cd3420f643b96941453ed5aaf6a9a3e1878b23a7d33339dc9f10a9160
[INFO] running `"docker" "start" "-a" "b407fb3cd3420f643b96941453ed5aaf6a9a3e1878b23a7d33339dc9f10a9160"`
[INFO] [stderr]     Checking ternary-tree v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:790:80
[INFO] [stderr]     |
[INFO] [stderr] 790 | fn pretty_print_r<'a, T>(link: &'a Link<T>, ids: &mut Tst<usize>, writer: &mut Write) {
[INFO] [stderr]     |                                                                                ^^^^^ help: use `dyn`: `dyn Write`
[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:1308:45
[INFO] [stderr]      |
[INFO] [stderr] 1308 |     pub fn pretty_print(&self, writer: &mut Write) {
[INFO] [stderr]      |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |             let mut stats = stat_r(stats, &node.middle, matches+1, sides, depth+1);
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:790:80
[INFO] [stderr]     |
[INFO] [stderr] 790 | fn pretty_print_r<'a, T>(link: &'a Link<T>, ids: &mut Tst<usize>, writer: &mut Write) {
[INFO] [stderr]     |                                                                                ^^^^^ help: use `dyn`: `dyn Write`
[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:1308:45
[INFO] [stderr]      |
[INFO] [stderr] 1308 |     pub fn pretty_print(&self, writer: &mut Write) {
[INFO] [stderr]      |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |             let mut stats = stat_r(stats, &node.middle, matches+1, sides, depth+1);
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> tests/tests.rs:1574:13
[INFO] [stderr]      |
[INFO] [stderr] 1574 |         let mut value =  map.get_mut(k);
[INFO] [stderr]      |             ----^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `"docker" "inspect" "b407fb3cd3420f643b96941453ed5aaf6a9a3e1878b23a7d33339dc9f10a9160"`
[INFO] running `"docker" "rm" "-f" "b407fb3cd3420f643b96941453ed5aaf6a9a3e1878b23a7d33339dc9f10a9160"`
[INFO] [stdout] b407fb3cd3420f643b96941453ed5aaf6a9a3e1878b23a7d33339dc9f10a9160