[INFO] fetching crate log4rs 1.2.0... [INFO] checking log4rs-1.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate log4rs 1.2.0 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate log4rs 1.2.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate log4rs 1.2.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate log4rs 1.2.0 [INFO] tweaked toml for crates.io crate log4rs 1.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate log4rs 1.2.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded streaming-stats v0.2.3 [INFO] [stderr] Downloaded arc-swap v1.5.0 [INFO] [stderr] Downloaded thread-id v4.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aae4c87f493adaa15192b623724f1b9b7dc0546854957446280cdb1ebd191f21 [INFO] running `Command { std: "docker" "start" "-a" "aae4c87f493adaa15192b623724f1b9b7dc0546854957446280cdb1ebd191f21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aae4c87f493adaa15192b623724f1b9b7dc0546854957446280cdb1ebd191f21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aae4c87f493adaa15192b623724f1b9b7dc0546854957446280cdb1ebd191f21", kill_on_drop: false }` [INFO] [stdout] aae4c87f493adaa15192b623724f1b9b7dc0546854957446280cdb1ebd191f21 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bac4cbf7ebd1307f5a3d83613a373c44768f7ea53ee7853163b692194d4cec9b [INFO] running `Command { std: "docker" "start" "-a" "bac4cbf7ebd1307f5a3d83613a373c44768f7ea53ee7853163b692194d4cec9b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.2 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking destructure_traitobject v0.2.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling anyhow v1.0.56 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking unsafe-any-ors v1.0.0 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking log-mdc v0.1.0 [INFO] [stderr] Checking arc-swap v1.5.0 [INFO] [stderr] Checking fastrand v1.7.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking typemap-ors v1.0.0 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking thread-id v4.0.0 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking ordered-float v2.10.0 [INFO] [stderr] Checking streaming-stats v0.2.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Checking thiserror v1.0.30 [INFO] [stderr] Checking serde-value v0.7.0 [INFO] [stderr] Checking serde_yaml v0.8.23 [INFO] [stderr] Checking log4rs v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `serde` is imported redundantly [INFO] [stdout] --> src/append/rolling_file/policy/compound/mod.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use serde::{self, de}; [INFO] [stdout] | ^^^^ the item `serde` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `IntoIterator` is imported redundantly [INFO] [stdout] --> src/config/runtime.rs:4:33 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{collections::HashSet, iter::IntoIterator}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `IntoIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToOwned` is imported redundantly [INFO] [stdout] --> src/config/raw.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | borrow::ToOwned, collections::HashMap, fmt, marker::PhantomData, sync::Arc, time::Duration, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToOwned` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde` is imported redundantly [INFO] [stdout] --> src/append/rolling_file/policy/compound/mod.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use serde::{self, de}; [INFO] [stdout] | ^^^^ the item `serde` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Roll` is imported redundantly [INFO] [stdout] --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:342:9 [INFO] [stdout] | [INFO] [stdout] 341 | use super::*; [INFO] [stdout] | -------- the item `Roll` is already imported here [INFO] [stdout] 342 | use crate::append::rolling_file::policy::compound::roll::Roll; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `File` is imported redundantly [INFO] [stdout] --> src/append/rolling_file/mod.rs:352:9 [INFO] [stdout] | [INFO] [stdout] 352 | fs::File, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 356 | use super::*; [INFO] [stdout] | -------- the item `File` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/append/rolling_file/mod.rs:353:20 [INFO] [stdout] | [INFO] [stdout] 353 | io::{Read, Write}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 356 | use super::*; [INFO] [stdout] | -------- the item `Write` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `IntoIterator` is imported redundantly [INFO] [stdout] --> src/config/runtime.rs:4:33 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{collections::HashSet, iter::IntoIterator}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `IntoIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToOwned` is imported redundantly [INFO] [stdout] --> src/config/raw.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | borrow::ToOwned, collections::HashMap, fmt, marker::PhantomData, sync::Arc, time::Duration, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToOwned` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `DateTime` is imported redundantly [INFO] [stdout] --> src/encode/json.rs:170:18 [INFO] [stdout] | [INFO] [stdout] 170 | use chrono::{DateTime, Local}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 173 | use super::*; [INFO] [stdout] | -------- the item `DateTime` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Local` is imported redundantly [INFO] [stdout] --> src/encode/json.rs:170:28 [INFO] [stdout] | [INFO] [stdout] 170 | use chrono::{DateTime, Local}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 173 | use super::*; [INFO] [stdout] | -------- the item `Local` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Level` is imported redundantly [INFO] [stdout] --> src/encode/json.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 171 | use log::Level; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 172 | [INFO] [stdout] 173 | use super::*; [INFO] [stdout] | -------- the item `Level` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `io` is imported redundantly [INFO] [stdout] --> src/encode/writer/ansi.rs:84:19 [INFO] [stdout] | [INFO] [stdout] 84 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] 85 | [INFO] [stdout] 86 | use super::*; [INFO] [stdout] | -------- the item `io` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Color` is imported redundantly [INFO] [stdout] --> src/encode/writer/ansi.rs:87:25 [INFO] [stdout] | [INFO] [stdout] 86 | use super::*; [INFO] [stdout] | -------- the item `Color` is already imported here [INFO] [stdout] 87 | use crate::encode::{Color, Style, Write as EncodeWrite}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Style` is imported redundantly [INFO] [stdout] --> src/encode/writer/ansi.rs:87:32 [INFO] [stdout] | [INFO] [stdout] 86 | use super::*; [INFO] [stdout] | -------- the item `Style` is already imported here [INFO] [stdout] 87 | use crate::encode::{Color, Style, Write as EncodeWrite}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Style` is imported redundantly [INFO] [stdout] --> src/encode/writer/console.rs:370:32 [INFO] [stdout] | [INFO] [stdout] 369 | use super::*; [INFO] [stdout] | -------- the item `Style` is already imported here [INFO] [stdout] 370 | use crate::encode::{Color, Style, Write as EncodeWrite}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Level` is imported redundantly [INFO] [stdout] --> src/lib.rs:479:15 [INFO] [stdout] | [INFO] [stdout] 479 | use log::{Level, LevelFilter, Log}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] 480 | [INFO] [stdout] 481 | use super::*; [INFO] [stdout] | -------- the item `Level` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `LevelFilter` is imported redundantly [INFO] [stdout] --> src/lib.rs:479:22 [INFO] [stdout] | [INFO] [stdout] 479 | use log::{Level, LevelFilter, Log}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 480 | [INFO] [stdout] 481 | use super::*; [INFO] [stdout] | -------- the item `LevelFilter` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `ErrorInternals` is never used [INFO] [stdout] --> src/lib.rs:473:7 [INFO] [stdout] | [INFO] [stdout] 473 | trait ErrorInternals { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `log4rs` is imported redundantly [INFO] [stdout] --> examples/compile_time_config.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use log4rs; [INFO] [stdout] | ^^^^^^ the item `log4rs` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_yaml` is imported redundantly [INFO] [stdout] --> examples/compile_time_config.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use serde_yaml; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_yaml` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `ErrorInternals` is never used [INFO] [stdout] --> src/lib.rs:473:7 [INFO] [stdout] | [INFO] [stdout] 473 | trait ErrorInternals { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `min`, `max`, `median`, and `variance_nanos` are never read [INFO] [stdout] --> benches/rotation.rs:98:5 [INFO] [stdout] | [INFO] [stdout] 97 | struct Stats { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 98 | min: Duration, [INFO] [stdout] | ^^^ [INFO] [stdout] 99 | max: Duration, [INFO] [stdout] | ^^^ [INFO] [stdout] 100 | median: Duration, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 101 | mean_nanos: u128, [INFO] [stdout] 102 | variance_nanos: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Stats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.35s [INFO] running `Command { std: "docker" "inspect" "bac4cbf7ebd1307f5a3d83613a373c44768f7ea53ee7853163b692194d4cec9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bac4cbf7ebd1307f5a3d83613a373c44768f7ea53ee7853163b692194d4cec9b", kill_on_drop: false }` [INFO] [stdout] bac4cbf7ebd1307f5a3d83613a373c44768f7ea53ee7853163b692194d4cec9b