[INFO] cloning repository https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JanKaczmarkiewicz/advent-of-code-answers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanKaczmarkiewicz%2Fadvent-of-code-answers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanKaczmarkiewicz%2Fadvent-of-code-answers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfa4214f825838fa0960b13cf44c50e35ff4664e
[INFO] checking JanKaczmarkiewicz/advent-of-code-answers against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanKaczmarkiewicz%2Fadvent-of-code-answers" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] finished tweaking git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] tweaked toml for git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking JanKaczmarkiewicz/advent-of-code-answers against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanKaczmarkiewicz%2Fadvent-of-code-answers" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] finished tweaking git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] tweaked toml for git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers 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" "+09bc67b9158392361780e779d32997f14cc75c39" "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 JanKaczmarkiewicz/advent-of-code-answers against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanKaczmarkiewicz%2Fadvent-of-code-answers" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] finished tweaking git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers
[INFO] tweaked toml for git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JanKaczmarkiewicz/advent-of-code-answers 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" "+09bc67b9158392361780e779d32997f14cc75c39" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee3e75754acf4990456142f3fcc812fd788596c25b98b1e39fb87ee3f3c8c610
[INFO] running `Command { std: "docker" "start" "-a" "ee3e75754acf4990456142f3fcc812fd788596c25b98b1e39fb87ee3f3c8c610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee3e75754acf4990456142f3fcc812fd788596c25b98b1e39fb87ee3f3c8c610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3e75754acf4990456142f3fcc812fd788596c25b98b1e39fb87ee3f3c8c610", kill_on_drop: false }`
[INFO] [stdout] ee3e75754acf4990456142f3fcc812fd788596c25b98b1e39fb87ee3f3c8c610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90181842b2971b65b7477407926c2c04b75fee1b705f31bb6df537eec45a4d2a
[INFO] running `Command { std: "docker" "start" "-a" "90181842b2971b65b7477407926c2c04b75fee1b705f31bb6df537eec45a4d2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking pretty_assertions v1.2.1
[INFO] [stderr]     Checking advent-of-code-answers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `itertools` is imported redundantly
[INFO] [stdout]  --> src/y2022/d6/mod.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::{self, Itertools};
[INFO] [stdout]   |                 ^^^^ the item `itertools` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `itertools` is imported redundantly
[INFO] [stdout]  --> src/y2022/d7/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::{self, Itertools};
[INFO] [stdout]   |                 ^^^^ the item `itertools` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `itertools` is imported redundantly
[INFO] [stdout]  --> src/y2022/d6/mod.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::{self, Itertools};
[INFO] [stdout]   |                 ^^^^ the item `itertools` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `itertools` is imported redundantly
[INFO] [stdout]  --> src/y2022/d7/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::{self, Itertools};
[INFO] [stdout]   |                 ^^^^ the item `itertools` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings 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 5.36s
[INFO] running `Command { std: "docker" "inspect" "90181842b2971b65b7477407926c2c04b75fee1b705f31bb6df537eec45a4d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90181842b2971b65b7477407926c2c04b75fee1b705f31bb6df537eec45a4d2a", kill_on_drop: false }`
[INFO] [stdout] 90181842b2971b65b7477407926c2c04b75fee1b705f31bb6df537eec45a4d2a