[INFO] cloning repository https://github.com/viveknathani/vcollections
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/viveknathani/vcollections" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviveknathani%2Fvcollections", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviveknathani%2Fvcollections'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d73245d1e5f6b3fa3a890d2cd4ed1702e18eb5b
[INFO] testing viveknathani/vcollections against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviveknathani%2Fvcollections" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/viveknathani/vcollections
[INFO] finished tweaking git repo https://github.com/viveknathani/vcollections
[INFO] tweaked toml for git repo https://github.com/viveknathani/vcollections written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/viveknathani/vcollections on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/viveknathani/vcollections 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 065a0a9c2486fd6920d432bdc3ae7137b8f8d1d949cd20d26243c9a95a3394ff
[INFO] running `Command { std: "docker" "start" "-a" "065a0a9c2486fd6920d432bdc3ae7137b8f8d1d949cd20d26243c9a95a3394ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "065a0a9c2486fd6920d432bdc3ae7137b8f8d1d949cd20d26243c9a95a3394ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065a0a9c2486fd6920d432bdc3ae7137b8f8d1d949cd20d26243c9a95a3394ff", kill_on_drop: false }`
[INFO] [stdout] 065a0a9c2486fd6920d432bdc3ae7137b8f8d1d949cd20d26243c9a95a3394ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0469ae1c5826445c6e7c40d7266a95afcb5ea8389cf750767e80e77ad1335e7e
[INFO] running `Command { std: "docker" "start" "-a" "0469ae1c5826445c6e7c40d7266a95afcb5ea8389cf750767e80e77ad1335e7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcollections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/linked_list/mod.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<T> VLinkedList<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn size(&self) -> u64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "0469ae1c5826445c6e7c40d7266a95afcb5ea8389cf750767e80e77ad1335e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0469ae1c5826445c6e7c40d7266a95afcb5ea8389cf750767e80e77ad1335e7e", kill_on_drop: false }`
[INFO] [stdout] 0469ae1c5826445c6e7c40d7266a95afcb5ea8389cf750767e80e77ad1335e7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0749314c0c6ea4938c5a63bc830759b1da74fe44429af1c72ea83eb51eb6bbae
[INFO] running `Command { std: "docker" "start" "-a" "0749314c0c6ea4938c5a63bc830759b1da74fe44429af1c72ea83eb51eb6bbae", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcollections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/linked_list/mod.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<T> VLinkedList<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn size(&self) -> u64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "0749314c0c6ea4938c5a63bc830759b1da74fe44429af1c72ea83eb51eb6bbae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0749314c0c6ea4938c5a63bc830759b1da74fe44429af1c72ea83eb51eb6bbae", kill_on_drop: false }`
[INFO] [stdout] 0749314c0c6ea4938c5a63bc830759b1da74fe44429af1c72ea83eb51eb6bbae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c697092a6b621f01daebe730a014ed3546ee4a0bae7018ffb65f5011f7d7f583
[INFO] running `Command { std: "docker" "start" "-a" "c697092a6b621f01daebe730a014ed3546ee4a0bae7018ffb65f5011f7d7f583", kill_on_drop: false }`
[INFO] [stderr] warning: method `size` is never used
[INFO] [stderr]   --> src/linked_list/mod.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl<T> VLinkedList<T> {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 90 |     pub fn size(&self) -> u64 {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `vcollections` (bin "vcollections" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/vcollections-851a1447355d6fe8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c697092a6b621f01daebe730a014ed3546ee4a0bae7018ffb65f5011f7d7f583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c697092a6b621f01daebe730a014ed3546ee4a0bae7018ffb65f5011f7d7f583", kill_on_drop: false }`
[INFO] [stdout] c697092a6b621f01daebe730a014ed3546ee4a0bae7018ffb65f5011f7d7f583