[INFO] fetching crate libreplica 0.1.1...
[INFO] checking libreplica-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate libreplica 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate libreplica 0.1.1 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 libreplica 0.1.1
[INFO] finished tweaking crates.io crate libreplica 0.1.1
[INFO] tweaked toml for crates.io crate libreplica 0.1.1 written to /workspace/builds/worker-2-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 90 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg_aliases v0.1.1 (latest: v0.2.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding colored v1.9.4 (latest: v2.1.0)
[INFO] [stderr]       Adding core_affinity v0.5.10 (latest: v0.8.1)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding quanta v0.9.3 (latest: v0.12.3)
[INFO] [stderr]       Adding raw-cpuid v10.7.0 (latest: v11.0.1)
[INFO] [stderr]       Adding simple_logger v1.16.0 (latest: v4.3.3)
[INFO] [stderr]       Adding strsim v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding wasi v0.10.2+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[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 simple_logger v1.16.0
[INFO] [stderr]   Downloaded ctrlc v3.4.4
[INFO] [stderr]   Downloaded core_affinity v0.5.10
[INFO] [stderr]   Downloaded nix v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7654062a77b19a703c126abe1670f08246f4b88a51b1fd5af01eb55a45950356
[INFO] running `Command { std: "docker" "start" "-a" "7654062a77b19a703c126abe1670f08246f4b88a51b1fd5af01eb55a45950356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7654062a77b19a703c126abe1670f08246f4b88a51b1fd5af01eb55a45950356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7654062a77b19a703c126abe1670f08246f4b88a51b1fd5af01eb55a45950356", kill_on_drop: false }`
[INFO] [stdout] 7654062a77b19a703c126abe1670f08246f4b88a51b1fd5af01eb55a45950356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6bf457a30103c7ab63de1eb28f9849fe557a5a60e3e144e38bc818549ac533a5
[INFO] running `Command { std: "docker" "start" "-a" "6bf457a30103c7ab63de1eb28f9849fe557a5a60e3e144e38bc818549ac533a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking quanta v0.9.3
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stderr]     Checking simple_logger v1.16.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking libreplica v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `util` is imported redundantly
[INFO] [stdout]   --> src/recv/unreplicated.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use crate::util;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 19 |     use crate::*;
[INFO] [stdout]    |         -------- the item `util` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `LevelFilter` is imported redundantly
[INFO] [stdout]    --> src/recv/unreplicated.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |     use log::LevelFilter;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |     use super::*;
[INFO] [stdout]     |         -------- the item `LevelFilter` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `util` is imported redundantly
[INFO] [stdout]   --> src/recv/unreplicated.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use crate::util;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 19 |     use crate::*;
[INFO] [stdout]    |         -------- the item `util` is already imported 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.04s
[INFO] running `Command { std: "docker" "inspect" "6bf457a30103c7ab63de1eb28f9849fe557a5a60e3e144e38bc818549ac533a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf457a30103c7ab63de1eb28f9849fe557a5a60e3e144e38bc818549ac533a5", kill_on_drop: false }`
[INFO] [stdout] 6bf457a30103c7ab63de1eb28f9849fe557a5a60e3e144e38bc818549ac533a5