[INFO] fetching crate multistream-batch 1.2.0...
[INFO] checking multistream-batch-1.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate multistream-batch 1.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate multistream-batch 1.2.0 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 multistream-batch 1.2.0
[INFO] finished tweaking crates.io crate multistream-batch 1.2.0
[INFO] tweaked toml for crates.io crate multistream-batch 1.2.0 written to /workspace/builds/worker-5-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 5 packages
[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] 2aff9536d310c8a15e2eec564306556e9ba6ab1a03fb81beccacd7d0603715cf
[INFO] running `Command { std: "docker" "start" "-a" "2aff9536d310c8a15e2eec564306556e9ba6ab1a03fb81beccacd7d0603715cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aff9536d310c8a15e2eec564306556e9ba6ab1a03fb81beccacd7d0603715cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aff9536d310c8a15e2eec564306556e9ba6ab1a03fb81beccacd7d0603715cf", kill_on_drop: false }`
[INFO] [stdout] 2aff9536d310c8a15e2eec564306556e9ba6ab1a03fb81beccacd7d0603715cf
[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] 856c39dfabbd924c40b442ddc9f4dbcf642ed66dace4ee9fd8e4ffa351d6df60
[INFO] running `Command { std: "docker" "start" "-a" "856c39dfabbd924c40b442ddc9f4dbcf642ed66dace4ee9fd8e4ffa351d6df60", kill_on_drop: false }`
[INFO] [stderr]     Checking multistream-batch v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/buf_batch.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub use super::*;
[INFO] [stdout]     |             -------- the item `Duration` is already imported here
[INFO] [stdout] 134 |     use assert_matches::assert_matches;
[INFO] [stdout] 135 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/channel/buf_batch.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub use super::*;
[INFO] [stdout]     |             -------- the item `Duration` is already imported here
[INFO] [stdout] 247 |     use assert_matches::assert_matches;
[INFO] [stdout] 248 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/channel/multi_buf_batch.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub use super::*;
[INFO] [stdout]     |             -------- the item `Duration` is already imported here
[INFO] [stdout] 287 |     use assert_matches::assert_matches;
[INFO] [stdout] 288 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/channel/tx_buf_batch.rs:359:9
[INFO] [stdout]     |
[INFO] [stdout] 357 |     pub use super::*;
[INFO] [stdout]     |             -------- the item `Duration` is already imported here
[INFO] [stdout] 358 |     use assert_matches::assert_matches;
[INFO] [stdout] 359 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]    --> src/multi_buf_batch.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub use super::*;
[INFO] [stdout]     |             -------- the item `Duration` is already imported here
[INFO] [stdout] 232 |     use assert_matches::assert_matches;
[INFO] [stdout] 233 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "856c39dfabbd924c40b442ddc9f4dbcf642ed66dace4ee9fd8e4ffa351d6df60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856c39dfabbd924c40b442ddc9f4dbcf642ed66dace4ee9fd8e4ffa351d6df60", kill_on_drop: false }`
[INFO] [stdout] 856c39dfabbd924c40b442ddc9f4dbcf642ed66dace4ee9fd8e4ffa351d6df60