[INFO] cloning repository https://github.com/carado/utl-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carado/utl-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 634d52dfcb608237c049f7aa0a7f386e36d880e9
[INFO] checking carado/utl-rs against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs" "/workspace/builds/worker-55/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-55/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carado/utl-rs on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/carado/utl-rs
[INFO] finished tweaking git repo https://github.com/carado/utl-rs
[INFO] tweaked toml for git repo https://github.com/carado/utl-rs written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate git repo https://github.com/carado/utl-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b56b5df6782e86e7c19b0e5d4697a04a44f6f61b852718ccbf4ee3812ae8221
[INFO] running `Command { std: "docker" "start" "-a" "5b56b5df6782e86e7c19b0e5d4697a04a44f6f61b852718ccbf4ee3812ae8221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b56b5df6782e86e7c19b0e5d4697a04a44f6f61b852718ccbf4ee3812ae8221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b56b5df6782e86e7c19b0e5d4697a04a44f6f61b852718ccbf4ee3812ae8221", kill_on_drop: false }`
[INFO] [stdout] 5b56b5df6782e86e7c19b0e5d4697a04a44f6f61b852718ccbf4ee3812ae8221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 267de05557c4737e6eb8813bc45f4de32ec90b85858473b125b34fc21a0f37ff
[INFO] running `Command { std: "docker" "start" "-a" "267de05557c4737e6eb8813bc45f4de32ec90b85858473b125b34fc21a0f37ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]     Checking utl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     maybe_uninit_ref,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     maybe_uninit_ref,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 42s
[INFO] running `Command { std: "docker" "inspect" "267de05557c4737e6eb8813bc45f4de32ec90b85858473b125b34fc21a0f37ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "267de05557c4737e6eb8813bc45f4de32ec90b85858473b125b34fc21a0f37ff", kill_on_drop: false }`
[INFO] [stdout] 267de05557c4737e6eb8813bc45f4de32ec90b85858473b125b34fc21a0f37ff