[INFO] cloning repository https://github.com/Labyrinth-AI/rusty_mornings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Labyrinth-AI/rusty_mornings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLabyrinth-AI%2Frusty_mornings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLabyrinth-AI%2Frusty_mornings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a851336fa773b3c083c6cd720fd76fa3d6f3b67d
[INFO] checking Labyrinth-AI/rusty_mornings against try#be699666730c5a1745838222e98e2d85019affdc for pr-134300
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLabyrinth-AI%2Frusty_mornings" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Labyrinth-AI/rusty_mornings on toolchain be699666730c5a1745838222e98e2d85019affdc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be699666730c5a1745838222e98e2d85019affdc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Labyrinth-AI/rusty_mornings
[INFO] finished tweaking git repo https://github.com/Labyrinth-AI/rusty_mornings
[INFO] tweaked toml for git repo https://github.com/Labyrinth-AI/rusty_mornings written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Labyrinth-AI/rusty_mornings 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" "+be699666730c5a1745838222e98e2d85019affdc" "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 Labyrinth-AI/rusty_mornings against try#be699666730c5a1745838222e98e2d85019affdc for pr-134300
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLabyrinth-AI%2Frusty_mornings" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Labyrinth-AI/rusty_mornings on toolchain be699666730c5a1745838222e98e2d85019affdc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be699666730c5a1745838222e98e2d85019affdc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Labyrinth-AI/rusty_mornings
[INFO] finished tweaking git repo https://github.com/Labyrinth-AI/rusty_mornings
[INFO] tweaked toml for git repo https://github.com/Labyrinth-AI/rusty_mornings written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Labyrinth-AI/rusty_mornings 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" "+be699666730c5a1745838222e98e2d85019affdc" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+be699666730c5a1745838222e98e2d85019affdc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63d6d5c7501a1f85c0fd64c464ee685c21d861dc64a1e4dee6769cc6bc73997a
[INFO] running `Command { std: "docker" "start" "-a" "63d6d5c7501a1f85c0fd64c464ee685c21d861dc64a1e4dee6769cc6bc73997a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63d6d5c7501a1f85c0fd64c464ee685c21d861dc64a1e4dee6769cc6bc73997a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d6d5c7501a1f85c0fd64c464ee685c21d861dc64a1e4dee6769cc6bc73997a", kill_on_drop: false }`
[INFO] [stdout] 63d6d5c7501a1f85c0fd64c464ee685c21d861dc64a1e4dee6769cc6bc73997a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+be699666730c5a1745838222e98e2d85019affdc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 237596aaee1d81a64e4c16433f8dc0f0e0e847b780f286846bbbfd098a30a4cc
[INFO] running `Command { std: "docker" "start" "-a" "237596aaee1d81a64e4c16433f8dc0f0e0e847b780f286846bbbfd098a30a4cc", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_mornings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `years` and `nineties` are never read
[INFO] [stdout]  --> src/lifetimes.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Releases<'a> {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 2 |     years: &'a [i64],    // A reference to a slice of i64 values representing all years
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     eighties: &'a [i64], // A reference to a slice of i64 values representing the 80s
[INFO] [stdout] 4 |     nineties: &'a [i64], // A reference to a slice of i64 values representing the 90s
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `years` and `nineties` are never read
[INFO] [stdout]  --> src/lifetimes.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Releases<'a> {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 2 |     years: &'a [i64],    // A reference to a slice of i64 values representing all years
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     eighties: &'a [i64], // A reference to a slice of i64 values representing the 80s
[INFO] [stdout] 4 |     nineties: &'a [i64], // A reference to a slice of i64 values representing the 90s
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "237596aaee1d81a64e4c16433f8dc0f0e0e847b780f286846bbbfd098a30a4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "237596aaee1d81a64e4c16433f8dc0f0e0e847b780f286846bbbfd098a30a4cc", kill_on_drop: false }`
[INFO] [stdout] 237596aaee1d81a64e4c16433f8dc0f0e0e847b780f286846bbbfd098a30a4cc