[INFO] fetching crate nrpc 0.10.0...
[INFO] checking nrpc-0.10.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate nrpc 0.10.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate nrpc 0.10.0 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 nrpc 0.10.0
[INFO] finished tweaking crates.io crate nrpc 0.10.0
[INFO] tweaked toml for crates.io crate nrpc 0.10.0 written to /workspace/builds/worker-1-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 27 packages
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding prost v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-derive v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03932cca58d154e3ff941a529ae8f7d74a4421768e6c63f45d4c018cf6bb90c7
[INFO] running `Command { std: "docker" "start" "-a" "03932cca58d154e3ff941a529ae8f7d74a4421768e6c63f45d4c018cf6bb90c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03932cca58d154e3ff941a529ae8f7d74a4421768e6c63f45d4c018cf6bb90c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03932cca58d154e3ff941a529ae8f7d74a4421768e6c63f45d4c018cf6bb90c7", kill_on_drop: false }`
[INFO] [stdout] 03932cca58d154e3ff941a529ae8f7d74a4421768e6c63f45d4c018cf6bb90c7
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5111d3489c66475457deb715a58cbd8f35b117b060a2c4a62c0e4fdd5f44cbfb
[INFO] running `Command { std: "docker" "start" "-a" "5111d3489c66475457deb715a58cbd8f35b117b060a2c4a62c0e4fdd5f44cbfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking prost v0.11.9
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking nrpc v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Unpin` is imported redundantly
[INFO] [stdout]  --> src/service.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::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/stream_utils.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::marker::{PhantomData, 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] 
[INFO] [stdout] warning: the item `Unpin` is imported redundantly
[INFO] [stdout]  --> src/service.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::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/stream_utils.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::marker::{PhantomData, 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] 
[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 9.34s
[INFO] running `Command { std: "docker" "inspect" "5111d3489c66475457deb715a58cbd8f35b117b060a2c4a62c0e4fdd5f44cbfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5111d3489c66475457deb715a58cbd8f35b117b060a2c4a62c0e4fdd5f44cbfb", kill_on_drop: false }`
[INFO] [stdout] 5111d3489c66475457deb715a58cbd8f35b117b060a2c4a62c0e4fdd5f44cbfb
[INFO] checking nrpc-0.10.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate nrpc 0.10.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate nrpc 0.10.0 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 nrpc 0.10.0
[INFO] finished tweaking crates.io crate nrpc 0.10.0
[INFO] tweaked toml for crates.io crate nrpc 0.10.0 written to /workspace/builds/worker-1-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7bfb09c776b35dd278cddc0f0acc4ccb44e6052388674f5868a286f62b638010
[INFO] running `Command { std: "docker" "start" "-a" "7bfb09c776b35dd278cddc0f0acc4ccb44e6052388674f5868a286f62b638010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bfb09c776b35dd278cddc0f0acc4ccb44e6052388674f5868a286f62b638010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bfb09c776b35dd278cddc0f0acc4ccb44e6052388674f5868a286f62b638010", kill_on_drop: false }`
[INFO] [stdout] 7bfb09c776b35dd278cddc0f0acc4ccb44e6052388674f5868a286f62b638010
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ce07b8e1cbf3d379f13124792582cae52135978d84cc089fbd09b2f3b2b3724b
[INFO] running `Command { std: "docker" "start" "-a" "ce07b8e1cbf3d379f13124792582cae52135978d84cc089fbd09b2f3b2b3724b", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking prost v0.11.9
[INFO] [stderr]     Checking nrpc v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Unpin` is imported redundantly
[INFO] [stdout]  --> src/service.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::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/stream_utils.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::marker::{PhantomData, 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] 
[INFO] [stdout] warning: the item `Unpin` is imported redundantly
[INFO] [stdout]  --> src/service.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::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/stream_utils.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::marker::{PhantomData, 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] 
[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 11.11s
[INFO] running `Command { std: "docker" "inspect" "ce07b8e1cbf3d379f13124792582cae52135978d84cc089fbd09b2f3b2b3724b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce07b8e1cbf3d379f13124792582cae52135978d84cc089fbd09b2f3b2b3724b", kill_on_drop: false }`
[INFO] [stdout] ce07b8e1cbf3d379f13124792582cae52135978d84cc089fbd09b2f3b2b3724b