[INFO] cloning repository https://github.com/liujeremy67/rust-random [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liujeremy67/rust-random" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliujeremy67%2Frust-random", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliujeremy67%2Frust-random'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f70efb5505dbac39f02e9f547546f0379ed6b4f4 [INFO] testing liujeremy67/rust-random against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliujeremy67%2Frust-random" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/liujeremy67/rust-random [INFO] finished tweaking git repo https://github.com/liujeremy67/rust-random [INFO] tweaked toml for git repo https://github.com/liujeremy67/rust-random written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/liujeremy67/rust-random on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/liujeremy67/rust-random 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8ff788cd03a57010f1cded56d8a5732d887f7793def86dcdd74a06ad3d0da892 [INFO] running `Command { std: "docker" "start" "-a" "8ff788cd03a57010f1cded56d8a5732d887f7793def86dcdd74a06ad3d0da892", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8ff788cd03a57010f1cded56d8a5732d887f7793def86dcdd74a06ad3d0da892", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ff788cd03a57010f1cded56d8a5732d887f7793def86dcdd74a06ad3d0da892", kill_on_drop: false }` [INFO] [stdout] 8ff788cd03a57010f1cded56d8a5732d887f7793def86dcdd74a06ad3d0da892 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 64869426a7d6868e734232a9174e2016ac2f3b93b50e1363847fb11e029ec425 [INFO] running `Command { std: "docker" "start" "-a" "64869426a7d6868e734232a9174e2016ac2f3b93b50e1363847fb11e029ec425", kill_on_drop: false }` [INFO] [stderr] Compiling playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `linkedlist::LinkedList` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use linkedlist::LinkedList; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/linkedlist.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/linkedlist.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | type Link = Option>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LinkedList` is never constructed [INFO] [stdout] --> src/linkedlist.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct LinkedList { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/linkedlist.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl LinkedList { [INFO] [stdout] | --------------------- associated function in this implementation [INFO] [stdout] 18 | pub fn new() -> Self { // -> Self returns same type as implementation [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get` is never used [INFO] [stdout] --> src/linkedlist.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl LinkedList { [INFO] [stdout] | --------------------- method in this implementation [INFO] [stdout] 27 | pub fn get(&self) -> Option<&T>{ // list, val not modified (no mut) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `push` is never used [INFO] [stdout] --> src/linkedlist.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl LinkedList { [INFO] [stdout] | --------------------- method in this implementation [INFO] [stdout] 39 | pub fn push(&mut self, val: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `pop` is never used [INFO] [stdout] --> src/linkedlist.rs:48:12 [INFO] [stdout] | [INFO] [stdout] 47 | impl LinkedList { [INFO] [stdout] | --------------------- method in this implementation [INFO] [stdout] 48 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "64869426a7d6868e734232a9174e2016ac2f3b93b50e1363847fb11e029ec425", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64869426a7d6868e734232a9174e2016ac2f3b93b50e1363847fb11e029ec425", kill_on_drop: false }` [INFO] [stdout] 64869426a7d6868e734232a9174e2016ac2f3b93b50e1363847fb11e029ec425 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0070d062ca5918cf1a390d9e9a0b877ff720da81b7e7e316f861ebe5af5e62b7 [INFO] running `Command { std: "docker" "start" "-a" "0070d062ca5918cf1a390d9e9a0b877ff720da81b7e7e316f861ebe5af5e62b7", kill_on_drop: false }` [INFO] [stderr] Compiling playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `linkedlist::LinkedList` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use linkedlist::LinkedList; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "0070d062ca5918cf1a390d9e9a0b877ff720da81b7e7e316f861ebe5af5e62b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0070d062ca5918cf1a390d9e9a0b877ff720da81b7e7e316f861ebe5af5e62b7", kill_on_drop: false }` [INFO] [stdout] 0070d062ca5918cf1a390d9e9a0b877ff720da81b7e7e316f861ebe5af5e62b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f4c5df36652cdd52f8e0dcedbd20503fb0ccb9c9f38018df4f399f83c9bd58dd [INFO] running `Command { std: "docker" "start" "-a" "f4c5df36652cdd52f8e0dcedbd20503fb0ccb9c9f38018df4f399f83c9bd58dd", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `linkedlist::LinkedList` [INFO] [stdout] [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stdout] running 1 test [INFO] [stderr] | [INFO] [stdout] test linkedlist::tests::get_works ... ok [INFO] [stderr] 2 | use linkedlist::LinkedList; [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `playground` (bin "playground" test) generated 1 warning (run `cargo fix --bin "playground" -p playground --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/playground-6233d35ea24d5e41) [INFO] running `Command { std: "docker" "inspect" "f4c5df36652cdd52f8e0dcedbd20503fb0ccb9c9f38018df4f399f83c9bd58dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4c5df36652cdd52f8e0dcedbd20503fb0ccb9c9f38018df4f399f83c9bd58dd", kill_on_drop: false }` [INFO] [stdout] f4c5df36652cdd52f8e0dcedbd20503fb0ccb9c9f38018df4f399f83c9bd58dd