[INFO] fetching crate multi_reader 0.1.0... [INFO] testing multi_reader-0.1.0 against beta-2020-06-03 for beta-1.45-1 [INFO] extracting crate multi_reader 0.1.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate multi_reader 0.1.0 on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate multi_reader 0.1.0 [INFO] finished tweaking crates.io crate multi_reader 0.1.0 [INFO] tweaked toml for crates.io crate multi_reader 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cc84f29c6ec72262eeb1b4ebc4664e4b1ad532f54058c352d8ad113081a0fcaf [INFO] running `"docker" "start" "-a" "cc84f29c6ec72262eeb1b4ebc4664e4b1ad532f54058c352d8ad113081a0fcaf"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling multi_reader v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/lib.rs:45:29 [INFO] [stderr] | [INFO] [stderr] 45 | let n = try!(r.read(buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.34s [INFO] running `"docker" "inspect" "cc84f29c6ec72262eeb1b4ebc4664e4b1ad532f54058c352d8ad113081a0fcaf"` [INFO] running `"docker" "rm" "-f" "cc84f29c6ec72262eeb1b4ebc4664e4b1ad532f54058c352d8ad113081a0fcaf"` [INFO] [stdout] cc84f29c6ec72262eeb1b4ebc4664e4b1ad532f54058c352d8ad113081a0fcaf [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stdout] 46197575aaab27af39410c25a38a0474366e992c0db3db8bfa19afa449a9c651 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "46197575aaab27af39410c25a38a0474366e992c0db3db8bfa19afa449a9c651"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling multi_reader v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/lib.rs:45:29 [INFO] [stderr] | [INFO] [stderr] 45 | let n = try!(r.read(buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/lib.rs:45:29 [INFO] [stderr] | [INFO] [stderr] 45 | let n = try!(r.read(buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.95s [INFO] running `"docker" "inspect" "46197575aaab27af39410c25a38a0474366e992c0db3db8bfa19afa449a9c651"` [INFO] running `"docker" "rm" "-f" "46197575aaab27af39410c25a38a0474366e992c0db3db8bfa19afa449a9c651"` [INFO] [stdout] 46197575aaab27af39410c25a38a0474366e992c0db3db8bfa19afa449a9c651 [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stdout] 1fb8e3b06e216715ff3a4eb8647c451782391c8cbeb910ace6dc34a8dfe52ac4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "1fb8e3b06e216715ff3a4eb8647c451782391c8cbeb910ace6dc34a8dfe52ac4"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stdout] [INFO] [stderr] --> src/lib.rs:45:29 [INFO] [stdout] running 7 tests [INFO] [stderr] | [INFO] [stdout] test tests::test_err_during_read ... ok [INFO] [stderr] 45 | let n = try!(r.read(buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/lib.rs:45:29 [INFO] [stderr] | [INFO] [stderr] 45 | let n = try!(r.read(buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/multi_reader-ed7f41cc35862f1a [INFO] [stderr] Doc-tests multi_reader [INFO] [stdout] test tests::test_first_readers_is_empty ... ok [INFO] [stdout] test tests::test_only_empty_readers ... ok [INFO] [stdout] test tests::test_last_readers_is_empty ... ok [INFO] [stdout] test tests::test_middle_readers_is_empty ... ok [INFO] [stdout] test tests::test_several_readers ... ok [INFO] [stdout] test tests::test_single_reader ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 6) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "1fb8e3b06e216715ff3a4eb8647c451782391c8cbeb910ace6dc34a8dfe52ac4"` [INFO] running `"docker" "rm" "-f" "1fb8e3b06e216715ff3a4eb8647c451782391c8cbeb910ace6dc34a8dfe52ac4"` [INFO] [stdout] 1fb8e3b06e216715ff3a4eb8647c451782391c8cbeb910ace6dc34a8dfe52ac4