[INFO] fetching crate ipfi 0.1.0-rc.2... [INFO] checking ipfi-0.1.0-rc.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate ipfi 0.1.0-rc.2 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate ipfi 0.1.0-rc.2 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 ipfi 0.1.0-rc.2 [INFO] finished tweaking crates.io crate ipfi 0.1.0-rc.2 [INFO] tweaked toml for crates.io crate ipfi 0.1.0-rc.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate ipfi 0.1.0-rc.2 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6158da4d252aae29d2302552816e58dc0c3dff2fb114931f02587d4ce346349c [INFO] running `Command { std: "docker" "start" "-a" "6158da4d252aae29d2302552816e58dc0c3dff2fb114931f02587d4ce346349c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6158da4d252aae29d2302552816e58dc0c3dff2fb114931f02587d4ce346349c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6158da4d252aae29d2302552816e58dc0c3dff2fb114931f02587d4ce346349c", kill_on_drop: false }` [INFO] [stdout] 6158da4d252aae29d2302552816e58dc0c3dff2fb114931f02587d4ce346349c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 68cb829bdb58117519059fe6202457cf1fdfe2ccb58767f9a0fba477f9857162 [INFO] running `Command { std: "docker" "start" "-a" "68cb829bdb58117519059fe6202457cf1fdfe2ccb58767f9a0fba477f9857162", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling paste v1.0.14 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Compiling thiserror v1.0.47 [INFO] [stderr] Checking hashbrown v0.14.0 [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Checking bytes v1.4.0 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking nohash-hasher v0.2.0 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking dashmap v5.5.3 [INFO] [stderr] Compiling syn v2.0.29 [INFO] [stderr] Checking rmp v0.8.12 [INFO] [stderr] Compiling serde_derive v1.0.188 [INFO] [stderr] Compiling thiserror-impl v1.0.47 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking rmp-serde v1.1.2 [INFO] [stderr] Checking ipfi v0.1.0-rc.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/integer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::marker::Unpin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/integer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::marker::Unpin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/host.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | wire.signal_end_of_input(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 60 | let _ = wire.signal_end_of_input(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/async_host.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | wire.signal_end_of_input(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 62 | let _ = wire.signal_end_of_input(); [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] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.59s [INFO] running `Command { std: "docker" "inspect" "68cb829bdb58117519059fe6202457cf1fdfe2ccb58767f9a0fba477f9857162", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68cb829bdb58117519059fe6202457cf1fdfe2ccb58767f9a0fba477f9857162", kill_on_drop: false }` [INFO] [stdout] 68cb829bdb58117519059fe6202457cf1fdfe2ccb58767f9a0fba477f9857162 [INFO] checking ipfi-0.1.0-rc.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate ipfi 0.1.0-rc.2 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate ipfi 0.1.0-rc.2 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 ipfi 0.1.0-rc.2 [INFO] finished tweaking crates.io crate ipfi 0.1.0-rc.2 [INFO] tweaked toml for crates.io crate ipfi 0.1.0-rc.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate ipfi 0.1.0-rc.2 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a3b246004f6eb0bbed277895bf66b0f5fe952178871e1abda0baf94568aea01b [INFO] running `Command { std: "docker" "start" "-a" "a3b246004f6eb0bbed277895bf66b0f5fe952178871e1abda0baf94568aea01b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3b246004f6eb0bbed277895bf66b0f5fe952178871e1abda0baf94568aea01b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3b246004f6eb0bbed277895bf66b0f5fe952178871e1abda0baf94568aea01b", kill_on_drop: false }` [INFO] [stdout] a3b246004f6eb0bbed277895bf66b0f5fe952178871e1abda0baf94568aea01b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dfb3eaa73027b126c3e0f8e67a45bd2494e00d5fbfcd96c913d20b708db60caa [INFO] running `Command { std: "docker" "start" "-a" "dfb3eaa73027b126c3e0f8e67a45bd2494e00d5fbfcd96c913d20b708db60caa", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling paste v1.0.14 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Compiling thiserror v1.0.47 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking hashbrown v0.14.0 [INFO] [stderr] Checking bytes v1.4.0 [INFO] [stderr] Checking nohash-hasher v0.2.0 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.29 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking dashmap v5.5.3 [INFO] [stderr] Checking rmp v0.8.12 [INFO] [stderr] Compiling serde_derive v1.0.188 [INFO] [stderr] Compiling thiserror-impl v1.0.47 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking rmp-serde v1.1.2 [INFO] [stderr] Checking ipfi v0.1.0-rc.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/integer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::marker::Unpin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Unpin` is imported redundantly [INFO] [stdout] --> src/integer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::marker::Unpin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Unpin` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/host.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | wire.signal_end_of_input(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 60 | let _ = wire.signal_end_of_input(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/async_host.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | wire.signal_end_of_input(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 62 | let _ = wire.signal_end_of_input(); [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 15.82s [INFO] running `Command { std: "docker" "inspect" "dfb3eaa73027b126c3e0f8e67a45bd2494e00d5fbfcd96c913d20b708db60caa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfb3eaa73027b126c3e0f8e67a45bd2494e00d5fbfcd96c913d20b708db60caa", kill_on_drop: false }` [INFO] [stdout] dfb3eaa73027b126c3e0f8e67a45bd2494e00d5fbfcd96c913d20b708db60caa