[INFO] fetching crate perftool 0.2.0... [INFO] checking perftool-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate perftool 0.2.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate perftool 0.2.0 [INFO] finished tweaking crates.io crate perftool 0.2.0 [INFO] tweaked toml for crates.io crate perftool 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate perftool 0.2.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 71 packages to latest compatible versions [INFO] [stderr] Adding env_logger v0.8.4 (available: v0.11.8) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.1) [INFO] [stderr] Adding tokio v0.3.7 (available: v1.45.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9e48787658ae72f89b5ccc9116c9239bf401ea6b96d2b5fc1b30dd2a615d5195 [INFO] running `Command { std: "docker" "start" "-a" "9e48787658ae72f89b5ccc9116c9239bf401ea6b96d2b5fc1b30dd2a615d5195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e48787658ae72f89b5ccc9116c9239bf401ea6b96d2b5fc1b30dd2a615d5195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e48787658ae72f89b5ccc9116c9239bf401ea6b96d2b5fc1b30dd2a615d5195", kill_on_drop: false }` [INFO] [stdout] 9e48787658ae72f89b5ccc9116c9239bf401ea6b96d2b5fc1b30dd2a615d5195 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 80aa8741763095fc34d31987b0409ce765ad83f4df644161ba3f25b8929ca2d4 [INFO] running `Command { std: "docker" "start" "-a" "80aa8741763095fc34d31987b0409ce765ad83f4df644161ba3f25b8929ca2d4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Compiling zerocopy v0.8.26 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Checking slab v0.4.10 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking regex-syntax v0.8.5 [INFO] [stderr] Checking futures-io v0.3.31 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Checking instant v0.1.13 [INFO] [stderr] Checking futures-task v0.3.31 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio v0.3.7 [INFO] [stderr] Checking bytes v0.6.0 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Checking humantime v2.2.0 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking getrandom v0.2.16 [INFO] [stderr] Checking num_cpus v1.17.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking signal-hook-registry v1.4.5 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking ppv-lite86 v0.2.21 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling tokio-macros v0.3.2 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking perftool v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::Rng; [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/lib.rs:114:19 [INFO] [stdout] | [INFO] [stdout] 114 | fn new(n: &str) -> WorkerInput { [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] 114 | fn new(n: &str) -> WorkerInput<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:167:44 [INFO] [stdout] | [INFO] [stdout] 167 | Ok(Err(msg)) => assert!(false, msg), [INFO] [stdout] | ^^^ [INFO] [stdout] | [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: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 167 | Ok(Err(msg)) => assert!(false, "{}", msg), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.06s [INFO] running `Command { std: "docker" "inspect" "80aa8741763095fc34d31987b0409ce765ad83f4df644161ba3f25b8929ca2d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80aa8741763095fc34d31987b0409ce765ad83f4df644161ba3f25b8929ca2d4", kill_on_drop: false }` [INFO] [stdout] 80aa8741763095fc34d31987b0409ce765ad83f4df644161ba3f25b8929ca2d4