[INFO] fetching crate logger_cho 0.1.6...
[INFO] checking logger_cho-0.1.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate logger_cho 0.1.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate logger_cho 0.1.6 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 logger_cho 0.1.6
[INFO] finished tweaking crates.io crate logger_cho 0.1.6
[INFO] tweaked toml for crates.io crate logger_cho 0.1.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding destructure_traitobject v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding env_logger v0.10.2 (latest: v0.11.3)
[INFO] [stderr]       Adding ordered-float v2.10.1 (latest: v4.2.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded android_logger v0.13.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e92ba608bf83fdd45cf073bf756d4a0b80825e180540e1b3fbb5143d7b6ab338
[INFO] running `Command { std: "docker" "start" "-a" "e92ba608bf83fdd45cf073bf756d4a0b80825e180540e1b3fbb5143d7b6ab338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e92ba608bf83fdd45cf073bf756d4a0b80825e180540e1b3fbb5143d7b6ab338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e92ba608bf83fdd45cf073bf756d4a0b80825e180540e1b3fbb5143d7b6ab338", kill_on_drop: false }`
[INFO] [stdout] e92ba608bf83fdd45cf073bf756d4a0b80825e180540e1b3fbb5143d7b6ab338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5d7de5e154a8f8e9e7d08bedd7306ad3a3e6e2284fbf2c3148b41a966c6e9868
[INFO] running `Command { std: "docker" "start" "-a" "5d7de5e154a8f8e9e7d08bedd7306ad3a3e6e2284fbf2c3148b41a966c6e9868", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking thread-id v4.2.1
[INFO] [stderr]     Checking android_log-sys v0.3.1
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking log4rs v1.3.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking android_logger v0.13.3
[INFO] [stderr]     Checking logger_cho v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log4rs::append::file::FileAppender`
[INFO] [stdout]  --> src/_logger/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log4rs::append::file::FileAppender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Logger`
[INFO] [stdout]  --> src/_logger/mod.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | use log4rs::config::{Appender, Config, Logger, Root};
[INFO] [stdout]   |                                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::append::file::FileAppender`
[INFO] [stdout]  --> src/_logger/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log4rs::append::file::FileAppender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Logger`
[INFO] [stdout]  --> src/_logger/mod.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | use log4rs::config::{Appender, Config, Logger, Root};
[INFO] [stdout]   |                                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "5d7de5e154a8f8e9e7d08bedd7306ad3a3e6e2284fbf2c3148b41a966c6e9868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d7de5e154a8f8e9e7d08bedd7306ad3a3e6e2284fbf2c3148b41a966c6e9868", kill_on_drop: false }`
[INFO] [stdout] 5d7de5e154a8f8e9e7d08bedd7306ad3a3e6e2284fbf2c3148b41a966c6e9868