[INFO] fetching crate rtrie 0.1.1...
[INFO] checking rtrie-0.1.1 against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] extracting crate rtrie 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rtrie 0.1.1 on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtrie 0.1.1
[INFO] finished tweaking crates.io crate rtrie 0.1.1
[INFO] tweaked toml for crates.io crate rtrie 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "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] fb283a88835bf7008d51ae5bc13c8a5ec664e0bfcefd71a6b12bea9e24204931
[INFO] running `Command { std: "docker" "start" "-a" "fb283a88835bf7008d51ae5bc13c8a5ec664e0bfcefd71a6b12bea9e24204931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb283a88835bf7008d51ae5bc13c8a5ec664e0bfcefd71a6b12bea9e24204931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb283a88835bf7008d51ae5bc13c8a5ec664e0bfcefd71a6b12bea9e24204931", kill_on_drop: false }`
[INFO] [stdout] fb283a88835bf7008d51ae5bc13c8a5ec664e0bfcefd71a6b12bea9e24204931
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d577a21bed7c708e726d7b519f4b0ff765ebfe7c0cb63e0cfd84c0b8af28ea16
[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" "d577a21bed7c708e726d7b519f4b0ff765ebfe7c0cb63e0cfd84c0b8af28ea16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rtrie v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ternary.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |     rng: Box<Rng>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ternary.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |           /// Unwrap the treenode, creating a new node if it was an empty node.
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 210 | /         let mut node = match self.0 {
[INFO] [stdout] 211 | |             Some(node) => *node,
[INFO] [stdout] 212 | |             None => TreeNode::new(ch),
[INFO] [stdout] 213 | |         };
[INFO] [stdout]     | |__________- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ternary.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |           /// Unwrap the treenode, If the node is None, there is nothing to delete
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 295 | /         let mut node = match self.0 {
[INFO] [stdout] 296 | |             Some(node) => *node,
[INFO] [stdout] 297 | |             None => return self,
[INFO] [stdout] 298 | |         };
[INFO] [stdout]     | |__________- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]   --> benches/ternary.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let sample = rand::sample(rng, r.lines().map(Result::unwrap), sample_size);
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]   --> benches/ternary.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let lookup_sample = rand::sample(&mut rng, sample, lookup_len);
[INFO] [stdout]    |                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ternary.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |     rng: Box<Rng>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ternary.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |           /// Unwrap the treenode, creating a new node if it was an empty node.
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 210 | /         let mut node = match self.0 {
[INFO] [stdout] 211 | |             Some(node) => *node,
[INFO] [stdout] 212 | |             None => TreeNode::new(ch),
[INFO] [stdout] 213 | |         };
[INFO] [stdout]     | |__________- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ternary.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |           /// Unwrap the treenode, If the node is None, there is nothing to delete
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 295 | /         let mut node = match self.0 {
[INFO] [stdout] 296 | |             Some(node) => *node,
[INFO] [stdout] 297 | |             None => return self,
[INFO] [stdout] 298 | |         };
[INFO] [stdout]     | |__________- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.52s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d577a21bed7c708e726d7b519f4b0ff765ebfe7c0cb63e0cfd84c0b8af28ea16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d577a21bed7c708e726d7b519f4b0ff765ebfe7c0cb63e0cfd84c0b8af28ea16", kill_on_drop: false }`
[INFO] [stdout] d577a21bed7c708e726d7b519f4b0ff765ebfe7c0cb63e0cfd84c0b8af28ea16