[INFO] fetching crate mylogger 0.2.1... [INFO] checking mylogger-0.2.1 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345 [INFO] extracting crate mylogger 0.2.1 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate mylogger 0.2.1 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate mylogger 0.2.1 [INFO] finished tweaking crates.io crate mylogger 0.2.1 [INFO] tweaked toml for crates.io crate mylogger 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5480cbfbd968729c471d17c67a84a20f7c168c1b5b132630b5e256589ae146e6 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5480cbfbd968729c471d17c67a84a20f7c168c1b5b132630b5e256589ae146e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5480cbfbd968729c471d17c67a84a20f7c168c1b5b132630b5e256589ae146e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5480cbfbd968729c471d17c67a84a20f7c168c1b5b132630b5e256589ae146e6", kill_on_drop: false }` [INFO] [stdout] 5480cbfbd968729c471d17c67a84a20f7c168c1b5b132630b5e256589ae146e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 466046ba0c076db4f61a7d0efe3b0a3460369848a27e98da0844405175164d3e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "466046ba0c076db4f61a7d0efe3b0a3460369848a27e98da0844405175164d3e", kill_on_drop: false }` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling syn v1.0.31 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking futures-core v0.3.5 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.21 [INFO] [stderr] Checking mylogger v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `bounded` [INFO] [stdout] --> src/lib.rs:83:26 [INFO] [stdout] | [INFO] [stdout] 83 | use crossbeam::channel::{bounded, unbounded, Receiver, Sender}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bounded` [INFO] [stdout] --> src/lib.rs:83:26 [INFO] [stdout] | [INFO] [stdout] 83 | use crossbeam::channel::{bounded, unbounded, Receiver, Sender}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RecordBuilder` [INFO] [stdout] --> src/lib.rs:84:60 [INFO] [stdout] | [INFO] [stdout] 84 | use log::{info, Level, LevelFilter, Log, Metadata, Record, RecordBuilder}; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/lib.rs:85:17 [INFO] [stdout] | [INFO] [stdout] 85 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Instant` [INFO] [stdout] --> src/lib.rs:87:27 [INFO] [stdout] | [INFO] [stdout] 87 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RecordBuilder` [INFO] [stdout] --> src/lib.rs:84:60 [INFO] [stdout] | [INFO] [stdout] 84 | use log::{info, Level, LevelFilter, Log, Metadata, Record, RecordBuilder}; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/lib.rs:85:17 [INFO] [stdout] | [INFO] [stdout] 85 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Instant` [INFO] [stdout] --> src/lib.rs:87:27 [INFO] [stdout] | [INFO] [stdout] 87 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `meta` [INFO] [stdout] --> src/lib.rs:165:24 [INFO] [stdout] | [INFO] [stdout] 165 | fn activate(&self, meta: &Metadata) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_meta` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/lib.rs:168:19 [INFO] [stdout] | [INFO] [stdout] 168 | fn log(&self, record: &Record, logger: &MyLogger) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logger` [INFO] [stdout] --> src/lib.rs:168:36 [INFO] [stdout] | [INFO] [stdout] 168 | fn log(&self, record: &Record, logger: &MyLogger) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logger` [INFO] [stdout] --> src/lib.rs:169:29 [INFO] [stdout] | [INFO] [stdout] 169 | fn format_record(&self, logger: &MyLogger, record: &Record) -> String { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `level` [INFO] [stdout] --> src/lib.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let level = Level::Info; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_level` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `metadata` [INFO] [stdout] --> src/lib.rs:141:23 [INFO] [stdout] | [INFO] [stdout] 141 | fn enabled(&self, metadata: &Metadata) -> bool { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `task` [INFO] [stdout] --> src/lib.rs:232:25 [INFO] [stdout] | [INFO] [stdout] 232 | let task = tokio::spawn(AsyncDefaultHandler::async_log(m_log)); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_task` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | let mut mylogger = MyLogger::with_default_handler("asdf"); [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: unused variable: `meta` [INFO] [stdout] --> src/lib.rs:165:24 [INFO] [stdout] | [INFO] [stdout] 165 | fn activate(&self, meta: &Metadata) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_meta` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/lib.rs:168:19 [INFO] [stdout] | [INFO] [stdout] 168 | fn log(&self, record: &Record, logger: &MyLogger) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logger` [INFO] [stdout] --> src/lib.rs:168:36 [INFO] [stdout] | [INFO] [stdout] 168 | fn log(&self, record: &Record, logger: &MyLogger) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logger` [INFO] [stdout] --> src/lib.rs:169:29 [INFO] [stdout] | [INFO] [stdout] 169 | fn format_record(&self, logger: &MyLogger, record: &Record) -> String { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `level` [INFO] [stdout] --> src/lib.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let level = Level::Info; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_level` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `metadata` [INFO] [stdout] --> src/lib.rs:141:23 [INFO] [stdout] | [INFO] [stdout] 141 | fn enabled(&self, metadata: &Metadata) -> bool { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `task` [INFO] [stdout] --> src/lib.rs:232:25 [INFO] [stdout] | [INFO] [stdout] 232 | let task = tokio::spawn(AsyncDefaultHandler::async_log(m_log)); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_task` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `it_works` [INFO] [stdout] --> src/lib.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn it_works() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | let mut mylogger = MyLogger::with_default_handler("asdf"); [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: unused `std::result::Result` that must be used [INFO] [stdout] --> src/lib.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | log::set_boxed_logger(Box::new(mylogger)).map(|()| log::set_max_level(LevelFilter::Info)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `it_works` [INFO] [stdout] --> src/lib.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn it_works() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/lib.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | log::set_boxed_logger(Box::new(mylogger)).map(|()| log::set_max_level(LevelFilter::Info)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/lib.rs:105:5 [INFO] [stdout] | [INFO] [stdout] 105 | log::set_boxed_logger(Box::new(mylogger)).map(|()| log::set_max_level(LevelFilter::Info)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 29.68s [INFO] running `Command { std: "docker" "inspect" "466046ba0c076db4f61a7d0efe3b0a3460369848a27e98da0844405175164d3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "466046ba0c076db4f61a7d0efe3b0a3460369848a27e98da0844405175164d3e", kill_on_drop: false }` [INFO] [stdout] 466046ba0c076db4f61a7d0efe3b0a3460369848a27e98da0844405175164d3e