[INFO] fetching crate fast_log 1.2.2... [INFO] checking fast_log-1.2.2 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846 [INFO] extracting crate fast_log 1.2.2 into /workspace/builds/worker-13/source [INFO] validating manifest of crates.io crate fast_log 1.2.2 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate fast_log 1.2.2 [INFO] finished tweaking crates.io crate fast_log 1.2.2 [INFO] tweaked toml for crates.io crate fast_log 1.2.2 written to /workspace/builds/worker-13/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c44bfeaac730369ebad4bfc72498eb5013a1b422aa0d4232fc8382329b9e3099 [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" "c44bfeaac730369ebad4bfc72498eb5013a1b422aa0d4232fc8382329b9e3099", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c44bfeaac730369ebad4bfc72498eb5013a1b422aa0d4232fc8382329b9e3099", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c44bfeaac730369ebad4bfc72498eb5013a1b422aa0d4232fc8382329b9e3099", kill_on_drop: false }` [INFO] [stdout] c44bfeaac730369ebad4bfc72498eb5013a1b422aa0d4232fc8382329b9e3099 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 810809769a79ba0e30a53063336f58e810eda24026a78adc57f1120406b2c91e [INFO] running `Command { std: "docker" "start" "-a" "810809769a79ba0e30a53063336f58e810eda24026a78adc57f1120406b2c91e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.38 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking fastrand v1.3.4 [INFO] [stderr] Checking pin-project-lite v0.1.7 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Checking waker-fn v1.0.0 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking event-listener v2.3.3 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking vec-arena v0.5.0 [INFO] [stderr] Checking async-task v3.0.0 [INFO] [stderr] Checking arc-swap v0.4.7 [INFO] [stderr] Checking parking v1.0.6 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking async-mutex v1.1.5 [INFO] [stderr] Checking futures-lite v0.1.11 [INFO] [stderr] Checking async-channel v1.4.0 [INFO] [stderr] Checking multitask v0.2.0 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking blocking v0.5.1 [INFO] [stderr] Checking polling v0.1.5 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking signal-hook-registry v1.2.1 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking async-io v0.1.11 [INFO] [stderr] Checking async-executor v0.1.2 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking async-std v1.6.3 [INFO] [stderr] Compiling serde_derive v1.0.115 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.22 [INFO] [stderr] Checking serde v1.0.115 [INFO] [stderr] Checking chrono v0.4.15 [INFO] [stderr] Checking serde_json v1.0.57 [INFO] [stderr] Checking fast_log v1.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Cell`, `RefCell` [INFO] [stdout] --> src/log.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::{Cell, RefCell}; [INFO] [stdout] | ^^^^ ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/log.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::RecvError` [INFO] [stdout] --> src/log.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::sync::mpsc::RecvError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::sleep` [INFO] [stdout] --> src/log.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration`, `SystemTime` [INFO] [stdout] --> src/log.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | use std::time::{Duration, SystemTime}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `info`, `warn` [INFO] [stdout] --> src/log.rs:12:11 [INFO] [stdout] | [INFO] [stdout] 12 | use log::{error, info, warn}; [INFO] [stdout] | ^^^^^ ^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::time_util` [INFO] [stdout] --> src/log.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use crate::time_util; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `error` [INFO] [stdout] --> src/error.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{error, fmt}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Cell`, `RefCell` [INFO] [stdout] --> src/log.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::{Cell, RefCell}; [INFO] [stdout] | ^^^^ ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/log.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::RecvError` [INFO] [stdout] --> src/log.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::sync::mpsc::RecvError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::sleep` [INFO] [stdout] --> src/log.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/log.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | use std::time::{Duration, SystemTime}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `warn` [INFO] [stdout] --> src/log.rs:12:11 [INFO] [stdout] | [INFO] [stdout] 12 | use log::{error, info, warn}; [INFO] [stdout] | ^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `error` [INFO] [stdout] --> src/error.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{error, fmt}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::prelude` [INFO] [stdout] --> src/log.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use tokio::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::prelude` [INFO] [stdout] --> src/log.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use tokio::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/log.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | for i in 0..total { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/time_util.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut time = SystemTime::now().duration_since(start).unwrap(); [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/time_util.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut time = SystemTime::now().duration_since(start).unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `e` [INFO] [stdout] --> src/error.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn e() -> Result { [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/log.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | self.std_sender.as_ref().unwrap().send(arg); [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/log.rs:145:17 [INFO] [stdout] | [INFO] [stdout] 145 | file.write(s.as_bytes()); [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: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/time_util.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut time = SystemTime::now().duration_since(start).unwrap(); [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/time_util.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut time = SystemTime::now().duration_since(start).unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/log.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | self.std_sender.as_ref().unwrap().send(arg); [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/log.rs:145:17 [INFO] [stdout] | [INFO] [stdout] 145 | file.write(s.as_bytes()); [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: unused `std::result::Result` that must be used [INFO] [stdout] --> src/log.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | init_log("requests.log", &RuntimeType::Std); [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: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 03s [INFO] running `Command { std: "docker" "inspect" "810809769a79ba0e30a53063336f58e810eda24026a78adc57f1120406b2c91e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "810809769a79ba0e30a53063336f58e810eda24026a78adc57f1120406b2c91e", kill_on_drop: false }` [INFO] [stdout] 810809769a79ba0e30a53063336f58e810eda24026a78adc57f1120406b2c91e