[INFO] crate slacs-core 0.0.0 is already in cache
[INFO] testing slacs-core-0.0.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate slacs-core 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate slacs-core 0.0.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slacs-core 0.0.0
[INFO] finished tweaking crates.io crate slacs-core 0.0.0
[INFO] tweaked toml for crates.io crate slacs-core 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3016efde87d0666244991f288df09a9edaa96672923e917380b87c8eb954e6c1
[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" "3016efde87d0666244991f288df09a9edaa96672923e917380b87c8eb954e6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3016efde87d0666244991f288df09a9edaa96672923e917380b87c8eb954e6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3016efde87d0666244991f288df09a9edaa96672923e917380b87c8eb954e6c1", kill_on_drop: false }`
[INFO] [stdout] 3016efde87d0666244991f288df09a9edaa96672923e917380b87c8eb954e6c1
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--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] 2841826031e042543b16fa4dd322a80078d48d43e6612d30d73b0b49138b427b
[INFO] running `Command { std: "docker" "start" "-a" "2841826031e042543b16fa4dd322a80078d48d43e6612d30d73b0b49138b427b", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling ansi_term v0.7.5
[INFO] [stderr]    Compiling bytecount v0.1.7
[INFO] [stderr]    Compiling gapbuffer v0.1.1
[INFO] [stderr]    Compiling xi-unicode v0.0.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling xi-rope v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling error-chain v0.2.2
[INFO] [stderr]    Compiling slog v0.7.0
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling slog-term v0.7.0
[INFO] [stderr]    Compiling slog-serde v0.7.0
[INFO] [stderr]    Compiling serde_json v0.7.4
[INFO] [stderr]    Compiling slog-json v0.7.0
[INFO] [stderr]    Compiling slacs-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/slacs/marks.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> MarkPosition {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cursor`
[INFO] [stdout]   --> src/slacs/marks.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Cursor(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DisplayMark`
[INFO] [stdout]   --> src/slacs/marks.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     DisplayMark(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.47s
[INFO] running `Command { std: "docker" "inspect" "2841826031e042543b16fa4dd322a80078d48d43e6612d30d73b0b49138b427b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2841826031e042543b16fa4dd322a80078d48d43e6612d30d73b0b49138b427b", kill_on_drop: false }`
[INFO] [stdout] 2841826031e042543b16fa4dd322a80078d48d43e6612d30d73b0b49138b427b
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d0f34f535f7d29466816bf0ce1a7d65d8a64f365e01c41ac531ef5993860e6a
[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" "9d0f34f535f7d29466816bf0ce1a7d65d8a64f365e01c41ac531ef5993860e6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling slacs-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/slacs/marks.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> MarkPosition {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cursor`
[INFO] [stdout]   --> src/slacs/marks.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Cursor(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DisplayMark`
[INFO] [stdout]   --> src/slacs/marks.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     DisplayMark(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d0f34f535f7d29466816bf0ce1a7d65d8a64f365e01c41ac531ef5993860e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0f34f535f7d29466816bf0ce1a7d65d8a64f365e01c41ac531ef5993860e6a", kill_on_drop: false }`
[INFO] [stdout] 9d0f34f535f7d29466816bf0ce1a7d65d8a64f365e01c41ac531ef5993860e6a
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 41d7618266f050c0a67c505ca1b4dbcb19e8de565697e059a3c2c3d5e420b95c
[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" "41d7618266f050c0a67c505ca1b4dbcb19e8de565697e059a3c2c3d5e420b95c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/slacs/marks.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn new() -> MarkPosition {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cursor`
[INFO] [stderr]   --> src/slacs/marks.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Cursor(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DisplayMark`
[INFO] [stderr]   --> src/slacs/marks.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     DisplayMark(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slacs-ba6323d0a25f8057
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "41d7618266f050c0a67c505ca1b4dbcb19e8de565697e059a3c2c3d5e420b95c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d7618266f050c0a67c505ca1b4dbcb19e8de565697e059a3c2c3d5e420b95c", kill_on_drop: false }`
[INFO] [stdout] 41d7618266f050c0a67c505ca1b4dbcb19e8de565697e059a3c2c3d5e420b95c