[INFO] cloning repository https://github.com/corocn/rust-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/corocn/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c6c9e508a2f2e5d88bcd59c5da6d5a9b7761871c [INFO] checking corocn/rust-playground against master#d14d202262d13df896b0c624b0cec6e4bfde631a for pr-143028 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust-playground" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/corocn/rust-playground [INFO] finished tweaking git repo https://github.com/corocn/rust-playground [INFO] tweaked toml for git repo https://github.com/corocn/rust-playground written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/corocn/rust-playground on toolchain d14d202262d13df896b0c624b0cec6e4bfde631a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/corocn/rust-playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ferris-says v0.2.0 [INFO] [stderr] Downloaded kana2phone v0.1.0 [INFO] [stderr] Downloaded libc v0.2.90 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 983c26a2eee6fd328d817fa53e147c45a2041a149ed6a2d045a9aff4d68f7ae4 [INFO] running `Command { std: "docker" "start" "-a" "983c26a2eee6fd328d817fa53e147c45a2041a149ed6a2d045a9aff4d68f7ae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "983c26a2eee6fd328d817fa53e147c45a2041a149ed6a2d045a9aff4d68f7ae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "983c26a2eee6fd328d817fa53e147c45a2041a149ed6a2d045a9aff4d68f7ae4", kill_on_drop: false }` [INFO] [stdout] 983c26a2eee6fd328d817fa53e147c45a2041a149ed6a2d045a9aff4d68f7ae4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a180fd4def0874d98d25f59b85770b303b43faaf8e64b62a182ffc8655bb4450 [INFO] running `Command { std: "docker" "start" "-a" "a180fd4def0874d98d25f59b85770b303b43faaf8e64b62a182ffc8655bb4450", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.90 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling siphasher v0.3.5 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking futures-sink v0.3.13 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking futures-channel v0.3.13 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking object v0.23.0 [INFO] [stderr] Checking futures-task v0.3.13 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Compiling anyhow v1.0.39 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking smallvec v0.4.5 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking addr2line v0.14.1 [INFO] [stderr] Checking backtrace v0.3.56 [INFO] [stderr] Compiling phf_generator v0.8.0 [INFO] [stderr] Checking error-chain v0.10.0 [INFO] [stderr] Checking ferris-says v0.2.0 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Compiling phf_macros v0.8.0 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.2 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking phf v0.8.0 [INFO] [stderr] Checking kana2phone v0.1.0 [INFO] [stderr] Checking clap v3.0.0-beta.2 [INFO] [stderr] Checking futures-executor v0.3.13 [INFO] [stderr] Checking futures v0.3.13 [INFO] [stderr] Checking rust-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:15:27 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(messenger: &T, max: usize) -> LimitTracker { [INFO] [stdout] | ^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(messenger: &T, max: usize) -> LimitTracker<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:15:27 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(messenger: &T, max: usize) -> LimitTracker { [INFO] [stdout] | ^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(messenger: &T, max: usize) -> LimitTracker<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::current_dir` [INFO] [stdout] --> src/linkedlist/bin/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::current_dir; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/linkedlist/bin/main.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | fn iter(&self) -> ListIterator { [INFO] [stdout] | ^^^^^ ------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 68 | fn iter(&self) -> ListIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::current_dir` [INFO] [stdout] --> src/linkedlist/bin/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env::current_dir; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/linkedlist/bin/main.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | fn iter(&self) -> ListIterator { [INFO] [stdout] | ^^^^^ ------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 68 | fn iter(&self) -> ListIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.65s [INFO] running `Command { std: "docker" "inspect" "a180fd4def0874d98d25f59b85770b303b43faaf8e64b62a182ffc8655bb4450", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a180fd4def0874d98d25f59b85770b303b43faaf8e64b62a182ffc8655bb4450", kill_on_drop: false }` [INFO] [stdout] a180fd4def0874d98d25f59b85770b303b43faaf8e64b62a182ffc8655bb4450