[INFO] fetching crate simple-log 1.6.0...
[INFO] checking simple-log-1.6.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate simple-log 1.6.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate simple-log 1.6.0 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 simple-log 1.6.0
[INFO] finished tweaking crates.io crate simple-log 1.6.0
[INFO] tweaked toml for crates.io crate simple-log 1.6.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate simple-log 1.6.0 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 is_debug v1.0.1
[INFO] [stderr]   Downloaded log4rs v0.13.0
[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] 13fb221596e711335e42981f4e145e9487ac8cb6f76379ab6190648330f09962
[INFO] running `Command { std: "docker" "start" "-a" "13fb221596e711335e42981f4e145e9487ac8cb6f76379ab6190648330f09962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13fb221596e711335e42981f4e145e9487ac8cb6f76379ab6190648330f09962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13fb221596e711335e42981f4e145e9487ac8cb6f76379ab6190648330f09962", kill_on_drop: false }`
[INFO] [stdout] 13fb221596e711335e42981f4e145e9487ac8cb6f76379ab6190648330f09962
[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] aa88ceb957e44b6742f9c34396f82e74ad4fffb77166a1766d30ebaf10c3facb
[INFO] running `Command { std: "docker" "start" "-a" "aa88ceb957e44b6742f9c34396f82e74ad4fffb77166a1766d30ebaf10c3facb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking is_debug v1.0.1
[INFO] [stderr]     Checking convert_case v0.5.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.82
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking log4rs v0.13.0
[INFO] [stderr]     Checking simple-log v1.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "aa88ceb957e44b6742f9c34396f82e74ad4fffb77166a1766d30ebaf10c3facb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa88ceb957e44b6742f9c34396f82e74ad4fffb77166a1766d30ebaf10c3facb", kill_on_drop: false }`
[INFO] [stdout] aa88ceb957e44b6742f9c34396f82e74ad4fffb77166a1766d30ebaf10c3facb