[INFO] fetching crate active_standby 2.0.0... [INFO] checking active_standby-2.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate active_standby 2.0.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate active_standby 2.0.0 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 active_standby 2.0.0 [INFO] finished tweaking crates.io crate active_standby 2.0.0 [INFO] tweaked toml for crates.io crate active_standby 2.0.0 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 57 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding generator v0.7.5 (latest: v0.8.1) [INFO] [stderr] Adding loom v0.5.6 (latest: v0.7.1) [INFO] [stderr] Adding more-asserts v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding nu-ansi-term v0.46.0 (latest: v0.50.0) [INFO] [stderr] Adding redox_syscall v0.4.1 (latest: v0.5.1) [INFO] [stderr] Adding regex-automata v0.1.10 (latest: v0.4.6) [INFO] [stderr] Adding regex-syntax v0.6.29 (latest: v0.8.3) [INFO] [stderr] Adding windows v0.48.0 (latest: v0.54.0) [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] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded loom v0.5.6 [INFO] [stderr] Downloaded generator v0.7.5 [INFO] [stderr] Downloaded scoped-tls v1.0.1 [INFO] [stderr] Downloaded matchers v0.1.0 [INFO] [stderr] Downloaded maplit v1.0.2 [INFO] [stderr] Downloaded more-asserts v0.2.2 [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] 77c55a05e278f58b31014f39b825c770ee6d416921d4351f5dd1e5714817dec3 [INFO] running `Command { std: "docker" "start" "-a" "77c55a05e278f58b31014f39b825c770ee6d416921d4351f5dd1e5714817dec3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "77c55a05e278f58b31014f39b825c770ee6d416921d4351f5dd1e5714817dec3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77c55a05e278f58b31014f39b825c770ee6d416921d4351f5dd1e5714817dec3", kill_on_drop: false }` [INFO] [stdout] 77c55a05e278f58b31014f39b825c770ee6d416921d4351f5dd1e5714817dec3 [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] 2d55975c3066f1a47fb0d387931f1b211eacf05eea589ee453ea944f49877d22 [INFO] running `Command { std: "docker" "start" "-a" "2d55975c3066f1a47fb0d387931f1b211eacf05eea589ee453ea944f49877d22", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] Checking more-asserts v0.2.2 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking active_standby v2.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `MutableRef` is never constructed [INFO] [stdout] --> src/primitives/sync.rs:293:12 [INFO] [stdout] | [INFO] [stdout] 293 | struct MutableRef {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [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 1.39s [INFO] running `Command { std: "docker" "inspect" "2d55975c3066f1a47fb0d387931f1b211eacf05eea589ee453ea944f49877d22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d55975c3066f1a47fb0d387931f1b211eacf05eea589ee453ea944f49877d22", kill_on_drop: false }` [INFO] [stdout] 2d55975c3066f1a47fb0d387931f1b211eacf05eea589ee453ea944f49877d22 [INFO] checking active_standby-2.0.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate active_standby 2.0.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate active_standby 2.0.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate active_standby 2.0.0 [INFO] finished tweaking crates.io crate active_standby 2.0.0 [INFO] tweaked toml for crates.io crate active_standby 2.0.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c10ee33cbbd6c037493d4199a1318ba370f2e9303ff8d95d25ea9a5807bf505 [INFO] running `Command { std: "docker" "start" "-a" "0c10ee33cbbd6c037493d4199a1318ba370f2e9303ff8d95d25ea9a5807bf505", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c10ee33cbbd6c037493d4199a1318ba370f2e9303ff8d95d25ea9a5807bf505", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c10ee33cbbd6c037493d4199a1318ba370f2e9303ff8d95d25ea9a5807bf505", kill_on_drop: false }` [INFO] [stdout] 0c10ee33cbbd6c037493d4199a1318ba370f2e9303ff8d95d25ea9a5807bf505 [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fa7fdffcce052027b280fcc8801a3a8d8207bbf28041917e9bdb857eb56d4103 [INFO] running `Command { std: "docker" "start" "-a" "fa7fdffcce052027b280fcc8801a3a8d8207bbf28041917e9bdb857eb56d4103", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] Checking more-asserts v0.2.2 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking active_standby v2.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `MutableRef` is never constructed [INFO] [stdout] --> src/primitives/sync.rs:293:12 [INFO] [stdout] | [INFO] [stdout] 293 | struct MutableRef {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [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 1.32s [INFO] running `Command { std: "docker" "inspect" "fa7fdffcce052027b280fcc8801a3a8d8207bbf28041917e9bdb857eb56d4103", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa7fdffcce052027b280fcc8801a3a8d8207bbf28041917e9bdb857eb56d4103", kill_on_drop: false }` [INFO] [stdout] fa7fdffcce052027b280fcc8801a3a8d8207bbf28041917e9bdb857eb56d4103