[INFO] fetching crate xdl 0.2.0...
[INFO] testing xdl-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate xdl 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate xdl 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xdl 0.2.0
[INFO] finished tweaking crates.io crate xdl 0.2.0
[INFO] tweaked toml for crates.io crate xdl 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4aa47d8c1c6ae6ac3a1e4b6306e6e70cfd4f8c1ff5914d4efd50afe0a756f152
[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" "4aa47d8c1c6ae6ac3a1e4b6306e6e70cfd4f8c1ff5914d4efd50afe0a756f152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aa47d8c1c6ae6ac3a1e4b6306e6e70cfd4f8c1ff5914d4efd50afe0a756f152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa47d8c1c6ae6ac3a1e4b6306e6e70cfd4f8c1ff5914d4efd50afe0a756f152", kill_on_drop: false }`
[INFO] [stdout] 4aa47d8c1c6ae6ac3a1e4b6306e6e70cfd4f8c1ff5914d4efd50afe0a756f152
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2cd08cdc51322af2cf66b94187f03b21228fc5c313a82b8eb2385d7c3d5a2f7
[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" "f2cd08cdc51322af2cf66b94187f03b21228fc5c313a82b8eb2385d7c3d5a2f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]    Compiling num_enum v0.5.4
[INFO] [stderr]    Compiling xdl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `is_false`
[INFO] [stdout]    --> src/vi.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn is_false(b: &bool) -> bool {
[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 15.32s
[INFO] running `Command { std: "docker" "inspect" "f2cd08cdc51322af2cf66b94187f03b21228fc5c313a82b8eb2385d7c3d5a2f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2cd08cdc51322af2cf66b94187f03b21228fc5c313a82b8eb2385d7c3d5a2f7", kill_on_drop: false }`
[INFO] [stdout] f2cd08cdc51322af2cf66b94187f03b21228fc5c313a82b8eb2385d7c3d5a2f7
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1667500aa44e3419a0347de0a5f024c74e784b883013f0b5276b506c4da859e0
[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" "1667500aa44e3419a0347de0a5f024c74e784b883013f0b5276b506c4da859e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling xdl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `is_false`
[INFO] [stdout]    --> src/vi.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn is_false(b: &bool) -> bool {
[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: function is never used: `is_false`
[INFO] [stdout]    --> src/vi.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn is_false(b: &bool) -> bool {
[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 test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "1667500aa44e3419a0347de0a5f024c74e784b883013f0b5276b506c4da859e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1667500aa44e3419a0347de0a5f024c74e784b883013f0b5276b506c4da859e0", kill_on_drop: false }`
[INFO] [stdout] 1667500aa44e3419a0347de0a5f024c74e784b883013f0b5276b506c4da859e0
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0a0957f4aeb8d89339dc59655c847cfab768cb5afe1b483f9ffdf305712260a
[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" "c0a0957f4aeb8d89339dc59655c847cfab768cb5afe1b483f9ffdf305712260a", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `is_false`
[INFO] [stderr]    --> src/vi.rs:167:4
[INFO] [stderr]     |
[INFO] [stderr] 167 | fn is_false(b: &bool) -> bool {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `xdl` (lib) generated 1 warning
[INFO] [stderr] warning: `xdl` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xdl-33117d597e714620)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xdl
[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] [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" "c0a0957f4aeb8d89339dc59655c847cfab768cb5afe1b483f9ffdf305712260a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a0957f4aeb8d89339dc59655c847cfab768cb5afe1b483f9ffdf305712260a", kill_on_drop: false }`
[INFO] [stdout] c0a0957f4aeb8d89339dc59655c847cfab768cb5afe1b483f9ffdf305712260a