[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] checking cor/coin-flip-streaks-rs against try#42d1facfffa1a5357d6d62815f7be91f8ad69ed8 for pr-95474 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcor%2Fcoin-flip-streaks-rs" "/workspace/builds/worker-106/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cor/coin-flip-streaks-rs on toolchain 42d1facfffa1a5357d6d62815f7be91f8ad69ed8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "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-106/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" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b09c13f82545bf8720cae3b38892b99db5b87e55502ea465b6a8ac913f9dea8e [INFO] running `Command { std: "docker" "start" "-a" "b09c13f82545bf8720cae3b38892b99db5b87e55502ea465b6a8ac913f9dea8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b09c13f82545bf8720cae3b38892b99db5b87e55502ea465b6a8ac913f9dea8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b09c13f82545bf8720cae3b38892b99db5b87e55502ea465b6a8ac913f9dea8e", kill_on_drop: false }` [INFO] [stdout] b09c13f82545bf8720cae3b38892b99db5b87e55502ea465b6a8ac913f9dea8e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d006bc8a8dd4278036098d814477f7beded262b8a56da3d969a7336b7c1b5ecd [INFO] running `Command { std: "docker" "start" "-a" "d006bc8a8dd4278036098d814477f7beded262b8a56da3d969a7336b7c1b5ecd", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking oorandom v11.1.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking serde_json v1.0.51 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [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] Checking plotters v0.2.12 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking bstr v0.2.12 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking tinytemplate v1.0.3 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking criterion-plot v0.4.1 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking criterion v0.3.1 [INFO] [stderr] Checking 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: 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: 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: `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: 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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 15s [INFO] running `Command { std: "docker" "inspect" "d006bc8a8dd4278036098d814477f7beded262b8a56da3d969a7336b7c1b5ecd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d006bc8a8dd4278036098d814477f7beded262b8a56da3d969a7336b7c1b5ecd", kill_on_drop: false }` [INFO] [stdout] d006bc8a8dd4278036098d814477f7beded262b8a56da3d969a7336b7c1b5ecd