[INFO] fetching crate elma 0.1.14... [INFO] checking elma-0.1.14 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710 [INFO] extracting crate elma 0.1.14 into /workspace/builds/worker-48/source [INFO] validating manifest of crates.io crate elma 0.1.14 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate elma 0.1.14 [INFO] finished tweaking crates.io crate elma 0.1.14 [INFO] tweaked toml for crates.io crate elma 0.1.14 written to /workspace/builds/worker-48/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16a3de51297805a57925724394338a33225c597efabc70b91a0a84d60c7b08fe [INFO] running `Command { std: "docker" "start" "-a" "16a3de51297805a57925724394338a33225c597efabc70b91a0a84d60c7b08fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16a3de51297805a57925724394338a33225c597efabc70b91a0a84d60c7b08fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16a3de51297805a57925724394338a33225c597efabc70b91a0a84d60c7b08fe", kill_on_drop: false }` [INFO] [stdout] 16a3de51297805a57925724394338a33225c597efabc70b91a0a84d60c7b08fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fd4db4a591571c7a3a0d9e11828116926dac2d645c18b283ebeebc0f084dc87c [INFO] running `Command { std: "docker" "start" "-a" "fd4db4a591571c7a3a0d9e11828116926dac2d645c18b283ebeebc0f084dc87c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking elma v0.1.14 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lev.rs:837:9 [INFO] [stdout] | [INFO] [stdout] 837 | for mut t in top10.iter_mut().take(TOP10_SIZE) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lev.rs:837:9 [INFO] [stdout] | [INFO] [stdout] 837 | for mut t in top10.iter_mut().take(TOP10_SIZE) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/state.rs:497:9 [INFO] [stdout] | [INFO] [stdout] 497 | for mut t in buffer.iter_mut() { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/state.rs:497:9 [INFO] [stdout] | [INFO] [stdout] 497 | for mut t in buffer.iter_mut() { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> tests/state.rs:55:32 [INFO] [stdout] | [INFO] [stdout] 55 | assert!(false, format!("State files differ at: {}", i)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the assert!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 55 - assert!(false, format!("State files differ at: {}", i)) [INFO] [stdout] 55 + assert!(false, "State files differ at: {}", i) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> tests/state.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | / &file_original [INFO] [stdout] 50 | | .iter() [INFO] [stdout] 51 | | .zip(&file_saved) [INFO] [stdout] 52 | | .enumerate() [INFO] [stdout] ... | [INFO] [stdout] 56 | | } [INFO] [stdout] 57 | | }); [INFO] [stdout] | |__________^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 49 | let _ = &file_original [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.71s [INFO] running `Command { std: "docker" "inspect" "fd4db4a591571c7a3a0d9e11828116926dac2d645c18b283ebeebc0f084dc87c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd4db4a591571c7a3a0d9e11828116926dac2d645c18b283ebeebc0f084dc87c", kill_on_drop: false }` [INFO] [stdout] fd4db4a591571c7a3a0d9e11828116926dac2d645c18b283ebeebc0f084dc87c