[INFO] cloning repository https://github.com/johnterickson/rustdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnterickson/rustdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 580f4f6d47ebd2a4659f3ec8eb66bf75aaacacd9
[INFO] checking johnterickson/rustdb against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb" "/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/johnterickson/rustdb on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnterickson/rustdb
[INFO] finished tweaking git repo https://github.com/johnterickson/rustdb
[INFO] tweaked toml for git repo https://github.com/johnterickson/rustdb written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/johnterickson/rustdb 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fe57b085b31b21820648df990ea58ea3ced4cd852e6d1b947adad9bf858eead
[INFO] running `Command { std: "docker" "start" "-a" "9fe57b085b31b21820648df990ea58ea3ced4cd852e6d1b947adad9bf858eead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe57b085b31b21820648df990ea58ea3ced4cd852e6d1b947adad9bf858eead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe57b085b31b21820648df990ea58ea3ced4cd852e6d1b947adad9bf858eead", kill_on_drop: false }`
[INFO] [stdout] 9fe57b085b31b21820648df990ea58ea3ced4cd852e6d1b947adad9bf858eead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc0acc9e44825d913dac674b9e39f429c5073eea627d0e99833fdecca10b2405
[INFO] running `Command { std: "docker" "start" "-a" "fc0acc9e44825d913dac674b9e39f429c5073eea627d0e99833fdecca10b2405", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking jdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/serialize.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{Read, Write},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use crate::*;
[INFO] [stdout]   |     -------- the item `Read` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/serialize.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{Read, Write},
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use crate::*;
[INFO] [stdout]   |     -------- the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `size_of` is imported redundantly
[INFO] [stdout]  --> src/serialize.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     mem::size_of,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use crate::*;
[INFO] [stdout]   |     -------- the item `size_of` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/serialize.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{Read, Write},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use crate::*;
[INFO] [stdout]   |     -------- the item `Read` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/serialize.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{Read, Write},
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use crate::*;
[INFO] [stdout]   |     -------- the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `size_of` is imported redundantly
[INFO] [stdout]  --> src/serialize.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     mem::size_of,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use crate::*;
[INFO] [stdout]   |     -------- the item `size_of` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `WriteGuard` is never used
[INFO] [stdout]  --> src/locks.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait WriteGuard<T>: ReadGuard<T> + DerefMut<Target = T> {}
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `WriteGuard` is never used
[INFO] [stdout]  --> src/locks.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait WriteGuard<T>: ReadGuard<T> + DerefMut<Target = T> {}
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "fc0acc9e44825d913dac674b9e39f429c5073eea627d0e99833fdecca10b2405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc0acc9e44825d913dac674b9e39f429c5073eea627d0e99833fdecca10b2405", kill_on_drop: false }`
[INFO] [stdout] fc0acc9e44825d913dac674b9e39f429c5073eea627d0e99833fdecca10b2405
[INFO] checking johnterickson/rustdb against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb" "/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/johnterickson/rustdb on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnterickson/rustdb
[INFO] finished tweaking git repo https://github.com/johnterickson/rustdb
[INFO] tweaked toml for git repo https://github.com/johnterickson/rustdb written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnterickson/rustdb 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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
[INFO] checking johnterickson/rustdb against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb" "/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/johnterickson/rustdb on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnterickson/rustdb
[INFO] finished tweaking git repo https://github.com/johnterickson/rustdb
[INFO] tweaked toml for git repo https://github.com/johnterickson/rustdb written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnterickson/rustdb 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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 johnterickson/rustdb against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb" "/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/johnterickson/rustdb on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnterickson/rustdb
[INFO] finished tweaking git repo https://github.com/johnterickson/rustdb
[INFO] tweaked toml for git repo https://github.com/johnterickson/rustdb written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnterickson/rustdb 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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 johnterickson/rustdb against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb" "/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/johnterickson/rustdb on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnterickson/rustdb
[INFO] finished tweaking git repo https://github.com/johnterickson/rustdb
[INFO] tweaked toml for git repo https://github.com/johnterickson/rustdb written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnterickson/rustdb 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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 johnterickson/rustdb against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Frustdb" "/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/johnterickson/rustdb on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnterickson/rustdb
[INFO] finished tweaking git repo https://github.com/johnterickson/rustdb
[INFO] tweaked toml for git repo https://github.com/johnterickson/rustdb written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnterickson/rustdb 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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
[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.
