[INFO] fetching crate mumlib 0.5.1... [INFO] checking mumlib-0.5.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate mumlib 0.5.1 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate mumlib 0.5.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mumlib 0.5.1 [INFO] finished tweaking crates.io crate mumlib 0.5.1 [INFO] tweaked toml for crates.io crate mumlib 0.5.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 68 packages [INFO] [stderr] Adding dirs v4.0.0 (latest: v5.0.1) [INFO] [stderr] Adding dirs-sys v0.3.7 (latest: v0.4.1) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.3) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.2.6) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding toml_edit v0.14.4 (latest: v0.22.9) [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-sys v0.48.0 (latest: v0.52.0) [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded toml_edit v0.14.4 [INFO] [stderr] Downloaded fern v0.6.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cdf4a941918cefeaa9a3e540e5ccdb21352bf3d13a8e41c4b9161e39d17a59a7 [INFO] running `Command { std: "docker" "start" "-a" "cdf4a941918cefeaa9a3e540e5ccdb21352bf3d13a8e41c4b9161e39d17a59a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cdf4a941918cefeaa9a3e540e5ccdb21352bf3d13a8e41c4b9161e39d17a59a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cdf4a941918cefeaa9a3e540e5ccdb21352bf3d13a8e41c4b9161e39d17a59a7", kill_on_drop: false }` [INFO] [stdout] cdf4a941918cefeaa9a3e540e5ccdb21352bf3d13a8e41c4b9161e39d17a59a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1265043b0a464a6eb3f9b7924379cd3764e36b6b4434cde0db3449e2f6de46fc [INFO] running `Command { std: "docker" "start" "-a" "1265043b0a464a6eb3f9b7924379cd3764e36b6b4434cde0db3449e2f6de46fc", kill_on_drop: false }` [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking colored v2.1.0 [INFO] [stderr] Checking fern v0.6.2 [INFO] [stderr] Checking dirs-sys v0.3.7 [INFO] [stderr] Checking chrono v0.4.37 [INFO] [stderr] Checking dirs v4.0.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking combine v4.6.6 [INFO] [stderr] Checking toml_edit v0.14.4 [INFO] [stderr] Checking mumlib v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/lib.rs:73:16 [INFO] [stdout] | [INFO] [stdout] 73 | .level(log::LevelFilter::Debug) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | #![warn(unused_qualifications)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 73 - .level(log::LevelFilter::Debug) [INFO] [stdout] 73 + .level(LevelFilter::Debug) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/lib.rs:73:16 [INFO] [stdout] | [INFO] [stdout] 73 | .level(log::LevelFilter::Debug) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | #![warn(unused_qualifications)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 73 - .level(log::LevelFilter::Debug) [INFO] [stdout] 73 + .level(LevelFilter::Debug) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.94s [INFO] running `Command { std: "docker" "inspect" "1265043b0a464a6eb3f9b7924379cd3764e36b6b4434cde0db3449e2f6de46fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1265043b0a464a6eb3f9b7924379cd3764e36b6b4434cde0db3449e2f6de46fc", kill_on_drop: false }` [INFO] [stdout] 1265043b0a464a6eb3f9b7924379cd3764e36b6b4434cde0db3449e2f6de46fc [INFO] checking mumlib-0.5.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate mumlib 0.5.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate mumlib 0.5.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mumlib 0.5.1 [INFO] finished tweaking crates.io crate mumlib 0.5.1 [INFO] tweaked toml for crates.io crate mumlib 0.5.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 68 packages [INFO] [stderr] Adding dirs v4.0.0 (latest: v5.0.1) [INFO] [stderr] Adding dirs-sys v0.3.7 (latest: v0.4.1) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.3) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.2.6) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding toml_edit v0.14.4 (latest: v0.22.9) [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-sys v0.48.0 (latest: v0.52.0) [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4ec6cfaf046759370af5047905b77a63c0f9d96e25af0925a2dcf3a1d03c1249 [INFO] running `Command { std: "docker" "start" "-a" "4ec6cfaf046759370af5047905b77a63c0f9d96e25af0925a2dcf3a1d03c1249", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4ec6cfaf046759370af5047905b77a63c0f9d96e25af0925a2dcf3a1d03c1249", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ec6cfaf046759370af5047905b77a63c0f9d96e25af0925a2dcf3a1d03c1249", kill_on_drop: false }` [INFO] [stdout] 4ec6cfaf046759370af5047905b77a63c0f9d96e25af0925a2dcf3a1d03c1249 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ab79c8e69dcc51ace826a5312f2e683d075c657b37e628d83d6f318c4986f03 [INFO] running `Command { std: "docker" "start" "-a" "3ab79c8e69dcc51ace826a5312f2e683d075c657b37e628d83d6f318c4986f03", kill_on_drop: false }` [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking colored v2.1.0 [INFO] [stderr] Checking fern v0.6.2 [INFO] [stderr] Checking dirs-sys v0.3.7 [INFO] [stderr] Checking chrono v0.4.37 [INFO] [stderr] Checking dirs v4.0.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking combine v4.6.6 [INFO] [stderr] Checking toml_edit v0.14.4 [INFO] [stderr] Checking mumlib v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/lib.rs:73:16 [INFO] [stdout] | [INFO] [stdout] 73 | .level(log::LevelFilter::Debug) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | #![warn(unused_qualifications)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 73 - .level(log::LevelFilter::Debug) [INFO] [stdout] 73 + .level(LevelFilter::Debug) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/lib.rs:73:16 [INFO] [stdout] | [INFO] [stdout] 73 | .level(log::LevelFilter::Debug) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | #![warn(unused_qualifications)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 73 - .level(log::LevelFilter::Debug) [INFO] [stdout] 73 + .level(LevelFilter::Debug) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.01s [INFO] running `Command { std: "docker" "inspect" "3ab79c8e69dcc51ace826a5312f2e683d075c657b37e628d83d6f318c4986f03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ab79c8e69dcc51ace826a5312f2e683d075c657b37e628d83d6f318c4986f03", kill_on_drop: false }` [INFO] [stdout] 3ab79c8e69dcc51ace826a5312f2e683d075c657b37e628d83d6f318c4986f03