[INFO] fetching crate rand_core 0.6.3...
[INFO] testing rand_core-0.6.3 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate rand_core 0.6.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rand_core 0.6.3 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rand_core 0.6.3
[INFO] finished tweaking crates.io crate rand_core 0.6.3
[INFO] tweaked toml for crates.io crate rand_core 0.6.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf683c99e467e04631d6877ba02229de3d198e243ac861d906072234d15d2cd5
[INFO] running `Command { std: "docker" "start" "-a" "bf683c99e467e04631d6877ba02229de3d198e243ac861d906072234d15d2cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf683c99e467e04631d6877ba02229de3d198e243ac861d906072234d15d2cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf683c99e467e04631d6877ba02229de3d198e243ac861d906072234d15d2cd5", kill_on_drop: false }`
[INFO] [stdout] bf683c99e467e04631d6877ba02229de3d198e243ac861d906072234d15d2cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dba8136df210f3fa7b8ea5c49c4317773db7a819f8d6ac7a7786417143709b7a
[INFO] running `Command { std: "docker" "start" "-a" "dba8136df210f3fa7b8ea5c49c4317773db7a819f8d6ac7a7786417143709b7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "dba8136df210f3fa7b8ea5c49c4317773db7a819f8d6ac7a7786417143709b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dba8136df210f3fa7b8ea5c49c4317773db7a819f8d6ac7a7786417143709b7a", kill_on_drop: false }`
[INFO] [stdout] dba8136df210f3fa7b8ea5c49c4317773db7a819f8d6ac7a7786417143709b7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bab20afb1c02117fbbe150f1b7d686a8782545eb0dc2ccb7239ef4b9f9b1de3
[INFO] running `Command { std: "docker" "start" "-a" "9bab20afb1c02117fbbe150f1b7d686a8782545eb0dc2ccb7239ef4b9f9b1de3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "9bab20afb1c02117fbbe150f1b7d686a8782545eb0dc2ccb7239ef4b9f9b1de3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bab20afb1c02117fbbe150f1b7d686a8782545eb0dc2ccb7239ef4b9f9b1de3", kill_on_drop: false }`
[INFO] [stdout] 9bab20afb1c02117fbbe150f1b7d686a8782545eb0dc2ccb7239ef4b9f9b1de3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ae22bcbdd3d11b7078925fff33efb3f41214bc18cac7b33908b6813839b62dc
[INFO] running `Command { std: "docker" "start" "-a" "4ae22bcbdd3d11b7078925fff33efb3f41214bc18cac7b33908b6813839b62dc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rand_core-516c6532b066ace3)
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests rand_core
[INFO] [stdout] test impls::test::test_fill_via_u32_chunks ... ok
[INFO] [stdout] test impls::test::test_fill_via_u64_chunks ... ok
[INFO] [stdout] test le::test_read ... ok
[INFO] [stdout] test test::test_seed_from_u64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/impls.rs - impls::fill_via_u32_chunks (line 100) ... ignored
[INFO] [stdout] test src/block.rs - block (line 24) - compile ... ok
[INFO] [stdout] test src/lib.rs - RngCore (line 111) ... ok
[INFO] [stdout] test src/lib.rs - SeedableRng::Seed (line 236) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4ae22bcbdd3d11b7078925fff33efb3f41214bc18cac7b33908b6813839b62dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae22bcbdd3d11b7078925fff33efb3f41214bc18cac7b33908b6813839b62dc", kill_on_drop: false }`
[INFO] [stdout] 4ae22bcbdd3d11b7078925fff33efb3f41214bc18cac7b33908b6813839b62dc