[INFO] cloning repository https://github.com/cor/coin-flip-streaks-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cor/coin-flip-streaks-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcor%2Fcoin-flip-streaks-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcor%2Fcoin-flip-streaks-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9a2170498f0b7a9ea07046b1e8a6fd918266edc6 [INFO] testing cor/coin-flip-streaks-rs against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcor%2Fcoin-flip-streaks-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cor/coin-flip-streaks-rs 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 git repo https://github.com/cor/coin-flip-streaks-rs [INFO] finished tweaking git repo https://github.com/cor/coin-flip-streaks-rs [INFO] tweaked toml for git repo https://github.com/cor/coin-flip-streaks-rs written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/cor/coin-flip-streaks-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded oorandom v11.1.0 [INFO] [stderr] Downloaded criterion-plot v0.4.1 [INFO] [stderr] Downloaded criterion v0.3.1 [INFO] [stderr] Downloaded plotters v0.2.12 [INFO] [stderr] Downloaded tinytemplate v1.0.3 [INFO] [stderr] Downloaded bstr v0.2.12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] dc967ca100dc40ab14155b621e73e48430dc12b3669f77cc0e11cd7f7f3b328a [INFO] running `Command { std: "docker" "start" "-a" "dc967ca100dc40ab14155b621e73e48430dc12b3669f77cc0e11cd7f7f3b328a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dc967ca100dc40ab14155b621e73e48430dc12b3669f77cc0e11cd7f7f3b328a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc967ca100dc40ab14155b621e73e48430dc12b3669f77cc0e11cd7f7f3b328a", kill_on_drop: false }` [INFO] [stdout] dc967ca100dc40ab14155b621e73e48430dc12b3669f77cc0e11cd7f7f3b328a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] e47d367eaefa96e8d08ce6ecab9d6a25c9dd044709d8ac010e1543c64145d0fa [INFO] running `Command { std: "docker" "start" "-a" "e47d367eaefa96e8d08ce6ecab9d6a25c9dd044709d8ac010e1543c64145d0fa", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling oorandom v11.1.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling bstr v0.2.12 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling serde_json v1.0.51 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling csv v1.1.3 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling criterion-plot v0.4.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling tinytemplate v1.0.3 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling crossbeam-queue v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling plotters v0.2.12 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling regex v1.3.7 [INFO] [stderr] Compiling rayon v1.3.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling criterion v0.3.1 [INFO] [stderr] Compiling coin_flip_streaks v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `i` is never read [INFO] [stdout] --> src/lib.rs:31:17 [INFO] [stdout] | [INFO] [stdout] 31 | i += j; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `coin_flip_streaks::experiment` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use coin_flip_streaks::experiment; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::{Rng, RngCore}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::prelude::ThreadRng` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use rand::prelude::ThreadRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 41.73s [INFO] running `Command { std: "docker" "inspect" "e47d367eaefa96e8d08ce6ecab9d6a25c9dd044709d8ac010e1543c64145d0fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e47d367eaefa96e8d08ce6ecab9d6a25c9dd044709d8ac010e1543c64145d0fa", kill_on_drop: false }` [INFO] [stdout] e47d367eaefa96e8d08ce6ecab9d6a25c9dd044709d8ac010e1543c64145d0fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 0c1639e110b45c52ab6010d03f100ca0a2d51673800f2f3d0501c8c84fb65a71 [INFO] running `Command { std: "docker" "start" "-a" "0c1639e110b45c52ab6010d03f100ca0a2d51673800f2f3d0501c8c84fb65a71", kill_on_drop: false }` [INFO] [stderr] Compiling coin_flip_streaks v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `i` is never read [INFO] [stdout] --> src/lib.rs:31:17 [INFO] [stdout] | [INFO] [stdout] 31 | i += j; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `coin_flip_streaks::experiment` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use coin_flip_streaks::experiment; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::{Rng, RngCore}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::prelude::ThreadRng` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use rand::prelude::ThreadRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `i` is never read [INFO] [stdout] --> src/lib.rs:31:17 [INFO] [stdout] | [INFO] [stdout] 31 | i += j; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.88s [INFO] running `Command { std: "docker" "inspect" "0c1639e110b45c52ab6010d03f100ca0a2d51673800f2f3d0501c8c84fb65a71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c1639e110b45c52ab6010d03f100ca0a2d51673800f2f3d0501c8c84fb65a71", kill_on_drop: false }` [INFO] [stdout] 0c1639e110b45c52ab6010d03f100ca0a2d51673800f2f3d0501c8c84fb65a71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] ee4a1f03b1c36a90ea7b41d58882094f67826edaf2e5baf6f40c9c5cac1f72b2 [INFO] running `Command { std: "docker" "start" "-a" "ee4a1f03b1c36a90ea7b41d58882094f67826edaf2e5baf6f40c9c5cac1f72b2", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/lib.rs:31:17 [INFO] [stderr] | [INFO] [stderr] 31 | i += j; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/lib.rs:31:17 [INFO] [stderr] | [INFO] [stderr] 31 | i += j; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `coin_flip_streaks::experiment` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use coin_flip_streaks::experiment; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Rng` [INFO] [stderr] --> src/main.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | use rand::{Rng, RngCore}; [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::prelude::ThreadRng` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use rand::prelude::ThreadRng; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/coin_flip_streaks-6cbc544fe549d272) [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] Running unittests (/opt/rustwide/target/debug/deps/coin_flip_streaks-4b3dde8c24f27143) [INFO] [stdout] [INFO] [stderr] Doc-tests coin_flip_streaks [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] [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] running `Command { std: "docker" "inspect" "ee4a1f03b1c36a90ea7b41d58882094f67826edaf2e5baf6f40c9c5cac1f72b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee4a1f03b1c36a90ea7b41d58882094f67826edaf2e5baf6f40c9c5cac1f72b2", kill_on_drop: false }` [INFO] [stdout] ee4a1f03b1c36a90ea7b41d58882094f67826edaf2e5baf6f40c9c5cac1f72b2