[INFO] fetching crate is-rust 0.1.0...
[INFO] testing is-rust-0.1.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[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 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", 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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 510c11b2dd26f4b1d4ba427344ca25a1a86f0bb145864228fa98a351fee55b88
[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" "510c11b2dd26f4b1d4ba427344ca25a1a86f0bb145864228fa98a351fee55b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "510c11b2dd26f4b1d4ba427344ca25a1a86f0bb145864228fa98a351fee55b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510c11b2dd26f4b1d4ba427344ca25a1a86f0bb145864228fa98a351fee55b88", kill_on_drop: false }`
[INFO] [stdout] 510c11b2dd26f4b1d4ba427344ca25a1a86f0bb145864228fa98a351fee55b88
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f2ffd012114e10d059288e247482f3668cb237532cee86eb2b221395eb8c6d3
[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" "5f2ffd012114e10d059288e247482f3668cb237532cee86eb2b221395eb8c6d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "5f2ffd012114e10d059288e247482f3668cb237532cee86eb2b221395eb8c6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2ffd012114e10d059288e247482f3668cb237532cee86eb2b221395eb8c6d3", kill_on_drop: false }`
[INFO] [stdout] 5f2ffd012114e10d059288e247482f3668cb237532cee86eb2b221395eb8c6d3
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aeab36a60178869113b8c99a8b7001c394a8146b5cd53fd593c4cf65aedb9eb7
[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" "aeab36a60178869113b8c99a8b7001c394a8146b5cd53fd593c4cf65aedb9eb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "aeab36a60178869113b8c99a8b7001c394a8146b5cd53fd593c4cf65aedb9eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeab36a60178869113b8c99a8b7001c394a8146b5cd53fd593c4cf65aedb9eb7", kill_on_drop: false }`
[INFO] [stdout] aeab36a60178869113b8c99a8b7001c394a8146b5cd53fd593c4cf65aedb9eb7
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 94e0ef5c589c767586f5f720457f7782a7787d9225004ab9983f5d11ebe94d7e
[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" "94e0ef5c589c767586f5f720457f7782a7787d9225004ab9983f5d11ebe94d7e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/is_rust-5743f744b42503c9
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests is-rust
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ignored
[INFO] [stdout] test src/lib.rs - is_rust (line 127) ... ok
[INFO] [stdout] test src/lib.rs - (line 81) ... ok
[INFO] [stdout] test src/lib.rs - (line 89) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... 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 45) ... ok
[INFO] [stdout] test src/lib.rs - is_not_rust (line 216) ... 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_very_rusty (line 200) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 158) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 135) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "94e0ef5c589c767586f5f720457f7782a7787d9225004ab9983f5d11ebe94d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e0ef5c589c767586f5f720457f7782a7787d9225004ab9983f5d11ebe94d7e", kill_on_drop: false }`
[INFO] [stdout] 94e0ef5c589c767586f5f720457f7782a7787d9225004ab9983f5d11ebe94d7e