[INFO] fetching crate lusl 2.1.0...
[INFO] checking lusl-2.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lusl 2.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate lusl 2.1.0 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 lusl 2.1.0
[INFO] finished tweaking crates.io crate lusl 2.1.0
[INFO] tweaked toml for crates.io crate lusl 2.1.0 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 36 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding rust-argon2 v1.0.1 (latest: v2.1.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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] 30e3ac06c0007b05f1bb30fc2f02e6e02e358d4061fddd76adcea4b1ba0ed7e4
[INFO] running `Command { std: "docker" "start" "-a" "30e3ac06c0007b05f1bb30fc2f02e6e02e358d4061fddd76adcea4b1ba0ed7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30e3ac06c0007b05f1bb30fc2f02e6e02e358d4061fddd76adcea4b1ba0ed7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e3ac06c0007b05f1bb30fc2f02e6e02e358d4061fddd76adcea4b1ba0ed7e4", kill_on_drop: false }`
[INFO] [stdout] 30e3ac06c0007b05f1bb30fc2f02e6e02e358d4061fddd76adcea4b1ba0ed7e4
[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] ac65ea3d72905e28ffc0d470c7ef40e640289e252a61f3092d7faf5bd605bfa7
[INFO] running `Command { std: "docker" "start" "-a" "ac65ea3d72905e28ffc0d470c7ef40e640289e252a61f3092d7faf5bd605bfa7", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking constant_time_eq v0.3.0
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking blake2b_simd v1.0.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking rust-argon2 v1.0.1
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking lusl v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]    --> src/serialize/deserializer.rs:490:15
[INFO] [stdout]     |
[INFO] [stdout] 489 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathBuf` is already imported here
[INFO] [stdout] 490 |     use std::{path::PathBuf, sync::mpsc, thread};
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "ac65ea3d72905e28ffc0d470c7ef40e640289e252a61f3092d7faf5bd605bfa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac65ea3d72905e28ffc0d470c7ef40e640289e252a61f3092d7faf5bd605bfa7", kill_on_drop: false }`
[INFO] [stdout] ac65ea3d72905e28ffc0d470c7ef40e640289e252a61f3092d7faf5bd605bfa7
[INFO] checking lusl-2.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate lusl 2.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate lusl 2.1.0 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 lusl 2.1.0
[INFO] finished tweaking crates.io crate lusl 2.1.0
[INFO] tweaked toml for crates.io crate lusl 2.1.0 written to /workspace/builds/worker-5-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-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] a61d1d09cdb4c6ced1fcbb0545a3ec5daadbdcf96d765e7cf09945c3a737aa06
[INFO] running `Command { std: "docker" "start" "-a" "a61d1d09cdb4c6ced1fcbb0545a3ec5daadbdcf96d765e7cf09945c3a737aa06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a61d1d09cdb4c6ced1fcbb0545a3ec5daadbdcf96d765e7cf09945c3a737aa06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61d1d09cdb4c6ced1fcbb0545a3ec5daadbdcf96d765e7cf09945c3a737aa06", kill_on_drop: false }`
[INFO] [stdout] a61d1d09cdb4c6ced1fcbb0545a3ec5daadbdcf96d765e7cf09945c3a737aa06
[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] 264ca85de8287af53846e1e28c1fd5a8b9422c49ca51147e73961618f1857854
[INFO] running `Command { std: "docker" "start" "-a" "264ca85de8287af53846e1e28c1fd5a8b9422c49ca51147e73961618f1857854", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking constant_time_eq v0.3.0
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking blake2b_simd v1.0.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking rust-argon2 v1.0.1
[INFO] [stderr]     Checking lusl v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]    --> src/serialize/deserializer.rs:490:15
[INFO] [stdout]     |
[INFO] [stdout] 489 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathBuf` is already imported here
[INFO] [stdout] 490 |     use std::{path::PathBuf, sync::mpsc, thread};
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "264ca85de8287af53846e1e28c1fd5a8b9422c49ca51147e73961618f1857854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264ca85de8287af53846e1e28c1fd5a8b9422c49ca51147e73961618f1857854", kill_on_drop: false }`
[INFO] [stdout] 264ca85de8287af53846e1e28c1fd5a8b9422c49ca51147e73961618f1857854