[INFO] fetching crate randbats-winrates 0.2.1... [INFO] testing randbats-winrates-0.2.1 against 1.55.0 for beta-1.56-2 [INFO] extracting crate randbats-winrates 0.2.1 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate randbats-winrates 0.2.1 on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate randbats-winrates 0.2.1 [INFO] finished tweaking crates.io crate randbats-winrates 0.2.1 [INFO] tweaked toml for crates.io crate randbats-winrates 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate crates.io crate randbats-winrates 0.2.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pikkr-annika v0.16.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 99828bb43a738e26223f9dcd03dfcbf4a374a16e381f70b1d0a266d3c7feb857 [INFO] running `Command { std: "docker" "start" "-a" "99828bb43a738e26223f9dcd03dfcbf4a374a16e381f70b1d0a266d3c7feb857", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "99828bb43a738e26223f9dcd03dfcbf4a374a16e381f70b1d0a266d3c7feb857", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99828bb43a738e26223f9dcd03dfcbf4a374a16e381f70b1d0a266d3c7feb857", kill_on_drop: false }` [INFO] [stdout] 99828bb43a738e26223f9dcd03dfcbf4a374a16e381f70b1d0a266d3c7feb857 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc0bf84092fa4d10a446f012daf2c25f97e72b1355676888a68994bb422eabce [INFO] running `Command { std: "docker" "start" "-a" "dc0bf84092fa4d10a446f012daf2c25f97e72b1355676888a68994bb422eabce", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling byteorder v1.4.2 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling encode_unicode v0.3.6 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling pikkr-annika v0.16.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling bstr v0.2.15 [INFO] [stderr] Compiling csv v1.1.5 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling structopt v0.3.21 [INFO] [stderr] Compiling randbats-winrates v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> src/stats.rs:189:14 [INFO] [stdout] | [INFO] [stdout] 189 | .intersperse(String::from("\n")) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.88s [INFO] running `Command { std: "docker" "inspect" "dc0bf84092fa4d10a446f012daf2c25f97e72b1355676888a68994bb422eabce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc0bf84092fa4d10a446f012daf2c25f97e72b1355676888a68994bb422eabce", kill_on_drop: false }` [INFO] [stdout] dc0bf84092fa4d10a446f012daf2c25f97e72b1355676888a68994bb422eabce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 475beff00f3ce6a8812b39cb55d2bae0e9bf48cae97bacb38b36e8233590b9fe [INFO] running `Command { std: "docker" "start" "-a" "475beff00f3ce6a8812b39cb55d2bae0e9bf48cae97bacb38b36e8233590b9fe", kill_on_drop: false }` [INFO] [stderr] Compiling randbats-winrates v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> src/stats.rs:189:14 [INFO] [stdout] | [INFO] [stdout] 189 | .intersperse(String::from("\n")) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.02s [INFO] running `Command { std: "docker" "inspect" "475beff00f3ce6a8812b39cb55d2bae0e9bf48cae97bacb38b36e8233590b9fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "475beff00f3ce6a8812b39cb55d2bae0e9bf48cae97bacb38b36e8233590b9fe", kill_on_drop: false }` [INFO] [stdout] 475beff00f3ce6a8812b39cb55d2bae0e9bf48cae97bacb38b36e8233590b9fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5b1d02d9061082303dcf159e5d99a92af00f5e1348c8d7af5d83f23bcd2ed1f2 [INFO] running `Command { std: "docker" "start" "-a" "5b1d02d9061082303dcf159e5d99a92af00f5e1348c8d7af5d83f23bcd2ed1f2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future [INFO] [stderr] --> src/stats.rs:189:14 [INFO] [stderr] | [INFO] [stderr] 189 | .intersperse(String::from("\n")) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stderr] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stderr] [INFO] [stderr] warning: `randbats-winrates` (bin "randbats-winrates" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 4.26s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/randbats_winrates-4fe3acbfb6a73f5f) [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] running `Command { std: "docker" "inspect" "5b1d02d9061082303dcf159e5d99a92af00f5e1348c8d7af5d83f23bcd2ed1f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b1d02d9061082303dcf159e5d99a92af00f5e1348c8d7af5d83f23bcd2ed1f2", kill_on_drop: false }` [INFO] [stdout] 5b1d02d9061082303dcf159e5d99a92af00f5e1348c8d7af5d83f23bcd2ed1f2