[INFO] cloning repository https://github.com/littleShirin/learning_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/littleShirin/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlittleShirin%2Flearning_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlittleShirin%2Flearning_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddeab9a30916b742f15151c15cc720f4296b0a53
[INFO] checking littleShirin/learning_rust against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlittleShirin%2Flearning_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/littleShirin/learning_rust on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/littleShirin/learning_rust
[INFO] finished tweaking git repo https://github.com/littleShirin/learning_rust
[INFO] tweaked toml for git repo https://github.com/littleShirin/learning_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/littleShirin/learning_rust 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking littleShirin/learning_rust against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlittleShirin%2Flearning_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/littleShirin/learning_rust on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/littleShirin/learning_rust
[INFO] finished tweaking git repo https://github.com/littleShirin/learning_rust
[INFO] tweaked toml for git repo https://github.com/littleShirin/learning_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/littleShirin/learning_rust 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2f075a4d25fcd6b679841d1755db49295a07571cf2377d38831bc8789313e9c
[INFO] running `Command { std: "docker" "start" "-a" "c2f075a4d25fcd6b679841d1755db49295a07571cf2377d38831bc8789313e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2f075a4d25fcd6b679841d1755db49295a07571cf2377d38831bc8789313e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f075a4d25fcd6b679841d1755db49295a07571cf2377d38831bc8789313e9c", kill_on_drop: false }`
[INFO] [stdout] c2f075a4d25fcd6b679841d1755db49295a07571cf2377d38831bc8789313e9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b7d0125740ea575e3212395b80a953171b437a683f4b804cbdbd566e932736b
[INFO] running `Command { std: "docker" "start" "-a" "4b7d0125740ea575e3212395b80a953171b437a683f4b804cbdbd566e932736b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.83
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking encoding_rs v0.8.34
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking openssl-sys v0.9.102
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]    Compiling syn v2.0.65
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]     Checking openssl v0.10.64
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking async-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.64s
[INFO] running `Command { std: "docker" "inspect" "4b7d0125740ea575e3212395b80a953171b437a683f4b804cbdbd566e932736b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7d0125740ea575e3212395b80a953171b437a683f4b804cbdbd566e932736b", kill_on_drop: false }`
[INFO] [stdout] 4b7d0125740ea575e3212395b80a953171b437a683f4b804cbdbd566e932736b