[INFO] fetching crate fast_log 1.2.3... [INFO] checking fast_log-1.2.3 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502 [INFO] extracting crate fast_log 1.2.3 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate fast_log 1.2.3 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate fast_log 1.2.3 [INFO] finished tweaking crates.io crate fast_log 1.2.3 [INFO] tweaked toml for crates.io crate fast_log 1.2.3 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f4c3247f0f24fa42941dee5c03a719940c5bfaac9fa3130b7292d00aaf6b47be [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" "f4c3247f0f24fa42941dee5c03a719940c5bfaac9fa3130b7292d00aaf6b47be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f4c3247f0f24fa42941dee5c03a719940c5bfaac9fa3130b7292d00aaf6b47be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4c3247f0f24fa42941dee5c03a719940c5bfaac9fa3130b7292d00aaf6b47be", kill_on_drop: false }` [INFO] [stdout] f4c3247f0f24fa42941dee5c03a719940c5bfaac9fa3130b7292d00aaf6b47be [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] e76298e90522bcc0f7fa25b5b3a026dac6e8da1cb3e3a468f7aa6f01a765f42e [INFO] running `Command { std: "docker" "start" "-a" "e76298e90522bcc0f7fa25b5b3a026dac6e8da1cb3e3a468f7aa6f01a765f42e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking futures-core v0.3.5 [INFO] [stderr] Checking pin-project-lite v0.1.7 [INFO] [stderr] Compiling serde_derive v1.0.115 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling serde v1.0.115 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking async-channel v1.4.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Checking futures-lite v0.1.11 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking blocking v0.5.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking polling v0.1.5 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking signal-hook-registry v1.2.1 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking async-io v0.1.11 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking async-executor v0.1.2 [INFO] [stderr] Checking async-std v1.6.3 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.22 [INFO] [stderr] Checking chrono v0.4.15 [INFO] [stderr] Checking fast_log v1.2.3 (/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::thread::sleep` [INFO] [stdout] --> src/log.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration`, `SystemTime` [INFO] [stdout] --> src/log.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::time::{Duration, SystemTime}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `info`, `warn` [INFO] [stdout] --> src/log.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | use log::{error, info, warn}; [INFO] [stdout] | ^^^^^ ^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::time_util` [INFO] [stdout] --> src/log.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | 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::thread::sleep` [INFO] [stdout] --> src/log.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/log.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::time::{Duration, SystemTime}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error`, `warn` [INFO] [stdout] --> src/log.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | 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:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use tokio::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::prelude` [INFO] [stdout] --> src/log.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | 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: 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: 13 warnings emitted [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: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 54.44s [INFO] running `Command { std: "docker" "inspect" "e76298e90522bcc0f7fa25b5b3a026dac6e8da1cb3e3a468f7aa6f01a765f42e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e76298e90522bcc0f7fa25b5b3a026dac6e8da1cb3e3a468f7aa6f01a765f42e", kill_on_drop: false }` [INFO] [stdout] e76298e90522bcc0f7fa25b5b3a026dac6e8da1cb3e3a468f7aa6f01a765f42e