[INFO] fetching crate is-rust 0.1.0...
[INFO] testing is-rust-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate is-rust 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate is-rust 0.1.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate is-rust 0.1.0
[INFO] finished tweaking crates.io crate is-rust 0.1.0
[INFO] tweaked toml for crates.io crate is-rust 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8f91b5bbf79319b4724993a3f26472c965533a561447b279c097b15ead11795
[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" "f8f91b5bbf79319b4724993a3f26472c965533a561447b279c097b15ead11795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8f91b5bbf79319b4724993a3f26472c965533a561447b279c097b15ead11795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f91b5bbf79319b4724993a3f26472c965533a561447b279c097b15ead11795", kill_on_drop: false }`
[INFO] [stdout] f8f91b5bbf79319b4724993a3f26472c965533a561447b279c097b15ead11795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 53d9105e93f7d48d80977f1181efefb98e6d4b308c6a1f1ab8b1138bb2bd4a50
[INFO] running `Command { std: "docker" "start" "-a" "53d9105e93f7d48d80977f1181efefb98e6d4b308c6a1f1ab8b1138bb2bd4a50", kill_on_drop: false }`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "53d9105e93f7d48d80977f1181efefb98e6d4b308c6a1f1ab8b1138bb2bd4a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53d9105e93f7d48d80977f1181efefb98e6d4b308c6a1f1ab8b1138bb2bd4a50", kill_on_drop: false }`
[INFO] [stdout] 53d9105e93f7d48d80977f1181efefb98e6d4b308c6a1f1ab8b1138bb2bd4a50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] c910c2842f343a6f1ba4a20c0ec5b1bb323df156c21634f9283b42845de44a1a
[INFO] running `Command { std: "docker" "start" "-a" "c910c2842f343a6f1ba4a20c0ec5b1bb323df156c21634f9283b42845de44a1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "c910c2842f343a6f1ba4a20c0ec5b1bb323df156c21634f9283b42845de44a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c910c2842f343a6f1ba4a20c0ec5b1bb323df156c21634f9283b42845de44a1a", kill_on_drop: false }`
[INFO] [stdout] c910c2842f343a6f1ba4a20c0ec5b1bb323df156c21634f9283b42845de44a1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 8e41d695b7ce64a0517f96228fb35a7413e4c2544d7a1120f4c6e38ce11af463
[INFO] running `Command { std: "docker" "start" "-a" "8e41d695b7ce64a0517f96228fb35a7413e4c2544d7a1120f4c6e38ce11af463", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/is_rust-6d25a45721a87d7d)
[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] [stderr]    Doc-tests is-rust
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ignored
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] test src/lib.rs - is_very_rusty (line 200) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 135) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 158) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 127) ... ok
[INFO] [stdout] test src/lib.rs - (line 55) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 164) ... ok
[INFO] [stdout] test src/lib.rs - is_not_rust (line 216) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - is_at_least_rusty (line 180) ... ok
[INFO] [stdout] test src/lib.rs - (line 89) ... ok
[INFO] [stdout] test src/lib.rs - (line 81) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 1.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e41d695b7ce64a0517f96228fb35a7413e4c2544d7a1120f4c6e38ce11af463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e41d695b7ce64a0517f96228fb35a7413e4c2544d7a1120f4c6e38ce11af463", kill_on_drop: false }`
[INFO] [stdout] 8e41d695b7ce64a0517f96228fb35a7413e4c2544d7a1120f4c6e38ce11af463