[INFO] fetching crate illist 0.1.0...
[INFO] testing illist-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate illist 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate illist 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate illist 0.1.0
[INFO] finished tweaking crates.io crate illist 0.1.0
[INFO] tweaked toml for crates.io crate illist 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 942d9dcc7064badb2f003fbf2f998208e46d9dd70fdf44ec6c821eb36c3b616e
[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" "942d9dcc7064badb2f003fbf2f998208e46d9dd70fdf44ec6c821eb36c3b616e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "942d9dcc7064badb2f003fbf2f998208e46d9dd70fdf44ec6c821eb36c3b616e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942d9dcc7064badb2f003fbf2f998208e46d9dd70fdf44ec6c821eb36c3b616e", kill_on_drop: false }`
[INFO] [stdout] 942d9dcc7064badb2f003fbf2f998208e46d9dd70fdf44ec6c821eb36c3b616e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 553d5fd027e15b7a3dcf6bdcc1cdb7d83fb3e39a3f985b3d6818f273dd73e56d
[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" "553d5fd027e15b7a3dcf6bdcc1cdb7d83fb3e39a3f985b3d6818f273dd73e56d", kill_on_drop: false }`
[INFO] [stderr]    Compiling illist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/node.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "553d5fd027e15b7a3dcf6bdcc1cdb7d83fb3e39a3f985b3d6818f273dd73e56d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "553d5fd027e15b7a3dcf6bdcc1cdb7d83fb3e39a3f985b3d6818f273dd73e56d", kill_on_drop: false }`
[INFO] [stdout] 553d5fd027e15b7a3dcf6bdcc1cdb7d83fb3e39a3f985b3d6818f273dd73e56d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", 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] 9942de651d4566514bcae143d32fc487fb0b9e312a97578aca0d2c6c5e829e3c
[INFO] running `Command { std: "docker" "start" "-a" "9942de651d4566514bcae143d32fc487fb0b9e312a97578aca0d2c6c5e829e3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling illist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/node.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/node.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9942de651d4566514bcae143d32fc487fb0b9e312a97578aca0d2c6c5e829e3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9942de651d4566514bcae143d32fc487fb0b9e312a97578aca0d2c6c5e829e3c", kill_on_drop: false }`
[INFO] [stdout] 9942de651d4566514bcae143d32fc487fb0b9e312a97578aca0d2c6c5e829e3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", 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] 954e188098c6b22ee2c654b9889ca0d4d320c2cd7f373deb402bbc7942b16ac0
[INFO] running `Command { std: "docker" "start" "-a" "954e188098c6b22ee2c654b9889ca0d4d320c2cd7f373deb402bbc7942b16ac0", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `empty`
[INFO] [stdout] running 4 tests
[INFO] [stderr]   --> src/node.rs:29:12
[INFO] [stdout] test tests::pop ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::push_back ... ok
[INFO] [stderr] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout] test tests::push_pop ... ok
[INFO] [stderr]    |            ^^^^^
[INFO] [stdout] test tests::unordered_iter ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `illist` (lib) generated 1 warning
[INFO] [stderr] warning: `illist` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/illist-9afa7183680c7bec)
[INFO] [stderr]    Doc-tests illist
[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" "954e188098c6b22ee2c654b9889ca0d4d320c2cd7f373deb402bbc7942b16ac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954e188098c6b22ee2c654b9889ca0d4d320c2cd7f373deb402bbc7942b16ac0", kill_on_drop: false }`
[INFO] [stdout] 954e188098c6b22ee2c654b9889ca0d4d320c2cd7f373deb402bbc7942b16ac0