[INFO] fetching crate seagull 0.1.0...
[INFO] checking seagull-0.1.0 against beta for pr-78714
[INFO] extracting crate seagull 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate seagull 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seagull 0.1.0
[INFO] finished tweaking crates.io crate seagull 0.1.0
[INFO] tweaked toml for crates.io crate seagull 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate seagull 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8c5db7a9af8492144f74283d40d3b0dfd9172f017f0bca7fc18bd0f02d2f0e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b8c5db7a9af8492144f74283d40d3b0dfd9172f017f0bca7fc18bd0f02d2f0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8c5db7a9af8492144f74283d40d3b0dfd9172f017f0bca7fc18bd0f02d2f0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c5db7a9af8492144f74283d40d3b0dfd9172f017f0bca7fc18bd0f02d2f0e0", kill_on_drop: false }`
[INFO] [stdout] b8c5db7a9af8492144f74283d40d3b0dfd9172f017f0bca7fc18bd0f02d2f0e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7362c9c5eedd0a5a01a531bfdfb02ab40fb715df4044824b09a6203d752dec4f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7362c9c5eedd0a5a01a531bfdfb02ab40fb715df4044824b09a6203d752dec4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling fsio v0.1.2
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking tokio v0.2.19
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling envmnt v0.8.2
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking postgres-protocol v0.5.1
[INFO] [stderr]     Checking ci_info v0.10.1
[INFO] [stderr]     Checking postgres-types v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking tokio-postgres v0.5.4
[INFO] [stderr]     Checking postgres v0.17.3
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking seagull v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rusty-hook v0.11.1
[INFO] [stdout] warning: struct is never constructed: `TestDatabase`
[INFO] [stdout]  --> tests/utils.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct TestDatabase {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect`
[INFO] [stdout]   --> tests/utils.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn connect() -> TestDatabase {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clean`
[INFO] [stdout]   --> tests/utils.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn clean(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assert_tables_exist`
[INFO] [stdout]   --> tests/utils.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn assert_tables_exist(&mut self, table_names: Vec<&str>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assert_migration_history_exists`
[INFO] [stdout]   --> tests/utils.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn assert_migration_history_exists(&mut self, version_numbers: Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assert_exists`
[INFO] [stdout]   --> tests/utils.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn assert_exists(&self, filename: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 29.92s
[INFO] running `Command { std: "docker" "inspect" "7362c9c5eedd0a5a01a531bfdfb02ab40fb715df4044824b09a6203d752dec4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7362c9c5eedd0a5a01a531bfdfb02ab40fb715df4044824b09a6203d752dec4f", kill_on_drop: false }`
[INFO] [stdout] 7362c9c5eedd0a5a01a531bfdfb02ab40fb715df4044824b09a6203d752dec4f