[INFO] cloning repository https://github.com/msmoiz/sss
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/msmoiz/sss" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsmoiz%2Fsss", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsmoiz%2Fsss'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83c54222e59123516d6e7368754faaa924fdbfce
[INFO] building msmoiz/sss against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsmoiz%2Fsss" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/msmoiz/sss on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/msmoiz/sss
[INFO] finished tweaking git repo https://github.com/msmoiz/sss
[INFO] tweaked toml for git repo https://github.com/msmoiz/sss written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/msmoiz/sss already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bde0c1a9f7882a6bc4a18bf91446743f2731c524194cfde6ed245db6139ebb54
[INFO] running `Command { std: "docker" "start" "-a" "bde0c1a9f7882a6bc4a18bf91446743f2731c524194cfde6ed245db6139ebb54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bde0c1a9f7882a6bc4a18bf91446743f2731c524194cfde6ed245db6139ebb54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bde0c1a9f7882a6bc4a18bf91446743f2731c524194cfde6ed245db6139ebb54", kill_on_drop: false }`
[INFO] [stdout] bde0c1a9f7882a6bc4a18bf91446743f2731c524194cfde6ed245db6139ebb54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9147d7395c1ced2a91a8460eabbe2b142117dac2ae44c5ec44d53c1dd6b13f1c
[INFO] running `Command { std: "docker" "start" "-a" "9147d7395c1ced2a91a8460eabbe2b142117dac2ae44c5ec44d53c1dd6b13f1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling sss v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Index` is never constructed
[INFO] [stdout]  --> src/index.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Index {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `find` are never used
[INFO] [stdout]   --> src/index.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Index {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 8  |     fn new(corpus: &[&'static str]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn find(&self, word: &str) -> Option<Vec<usize>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Trie` is never constructed
[INFO] [stdout]  --> src/trie.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Trie {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `node`, and `find` are never used
[INFO] [stdout]   --> src/trie.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Trie {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 9  |     fn new(corpus: &[&'static str]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn node() -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn find(&self, word: &str) -> Option<Vec<usize>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "9147d7395c1ced2a91a8460eabbe2b142117dac2ae44c5ec44d53c1dd6b13f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9147d7395c1ced2a91a8460eabbe2b142117dac2ae44c5ec44d53c1dd6b13f1c", kill_on_drop: false }`
[INFO] [stdout] 9147d7395c1ced2a91a8460eabbe2b142117dac2ae44c5ec44d53c1dd6b13f1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b89d29f9b6157c249a201ba6f54e05e37230a32a09cf26c3e54ec907391a6e45
[INFO] running `Command { std: "docker" "start" "-a" "b89d29f9b6157c249a201ba6f54e05e37230a32a09cf26c3e54ec907391a6e45", kill_on_drop: false }`
[INFO] [stderr]    Compiling sss v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "b89d29f9b6157c249a201ba6f54e05e37230a32a09cf26c3e54ec907391a6e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89d29f9b6157c249a201ba6f54e05e37230a32a09cf26c3e54ec907391a6e45", kill_on_drop: false }`
[INFO] [stdout] b89d29f9b6157c249a201ba6f54e05e37230a32a09cf26c3e54ec907391a6e45