[INFO] fetching crate swappy 0.3.0...
[INFO] checking swappy-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate swappy 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate swappy 0.3.0 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 swappy 0.3.0
[INFO] finished tweaking crates.io crate swappy 0.3.0
[INFO] tweaked toml for crates.io crate swappy 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate swappy 0.3.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_users v0.3.4
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded rust-argon2 v0.7.0
[INFO] [stderr]   Downloaded shellexpand v1.1.1
[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] 585f532e4fe46c5817549c4fc7c168c7c9ad64babc8ce66d1c7d0a9b78d4f5aa
[INFO] running `Command { std: "docker" "start" "-a" "585f532e4fe46c5817549c4fc7c168c7c9ad64babc8ce66d1c7d0a9b78d4f5aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "585f532e4fe46c5817549c4fc7c168c7c9ad64babc8ce66d1c7d0a9b78d4f5aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585f532e4fe46c5817549c4fc7c168c7c9ad64babc8ce66d1c7d0a9b78d4f5aa", kill_on_drop: false }`
[INFO] [stdout] 585f532e4fe46c5817549c4fc7c168c7c9ad64babc8ce66d1c7d0a9b78d4f5aa
[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] 9f97d54fbf96452493edc2d92478520c69a09bf3148fff65c5473760cdc1811f
[INFO] running `Command { std: "docker" "start" "-a" "9f97d54fbf96452493edc2d92478520c69a09bf3148fff65c5473760cdc1811f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking swappy v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `FoundWords` is imported redundantly
[INFO] [stdout]   --> src/solver.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     use super::*;
[INFO] [stdout]    |         -------- the item `FoundWords` is already imported here
[INFO] [stdout] 71 |     use crate::found_words::FoundWords;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `word_list` is imported redundantly
[INFO] [stdout]   --> src/solver.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     use super::*;
[INFO] [stdout]    |         -------- the item `word_list` is already imported here
[INFO] [stdout] 71 |     use crate::found_words::FoundWords;
[INFO] [stdout] 72 |     use crate::word_list;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `shellexpand` is imported redundantly
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use shellexpand;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `shellexpand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `shellexpand` is imported redundantly
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use shellexpand;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `shellexpand` is already defined by prelude
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.65s
[INFO] running `Command { std: "docker" "inspect" "9f97d54fbf96452493edc2d92478520c69a09bf3148fff65c5473760cdc1811f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f97d54fbf96452493edc2d92478520c69a09bf3148fff65c5473760cdc1811f", kill_on_drop: false }`
[INFO] [stdout] 9f97d54fbf96452493edc2d92478520c69a09bf3148fff65c5473760cdc1811f