[INFO] fetching crate dockers 0.1.6...
[INFO] checking dockers-0.1.6 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate dockers 0.1.6 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dockers 0.1.6 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dockers 0.1.6
[INFO] finished tweaking crates.io crate dockers 0.1.6
[INFO] tweaked toml for crates.io crate dockers 0.1.6 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04f62e53f986110377e046496d9bfd88ef95c55f3a14722edb54df4e99ffa82d
[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" "04f62e53f986110377e046496d9bfd88ef95c55f3a14722edb54df4e99ffa82d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04f62e53f986110377e046496d9bfd88ef95c55f3a14722edb54df4e99ffa82d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f62e53f986110377e046496d9bfd88ef95c55f3a14722edb54df4e99ffa82d", kill_on_drop: false }`
[INFO] [stdout] 04f62e53f986110377e046496d9bfd88ef95c55f3a14722edb54df4e99ffa82d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4eecb79e2afb514a5dcaa23dc681f058fa5f96c8b6489905e5cd1f8a1dacbeff
[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" "4eecb79e2afb514a5dcaa23dc681f058fa5f96c8b6489905e5cd1f8a1dacbeff", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.40+curl-7.75.0
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking dockers v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]  --> tests/tests.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde_json::json;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time::Duration`
[INFO] [stdout]  --> tests/tests.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{collections::HashMap, thread, time::Duration};
[INFO] [stdout]   |                                 ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.23s
[INFO] running `Command { std: "docker" "inspect" "4eecb79e2afb514a5dcaa23dc681f058fa5f96c8b6489905e5cd1f8a1dacbeff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eecb79e2afb514a5dcaa23dc681f058fa5f96c8b6489905e5cd1f8a1dacbeff", kill_on_drop: false }`
[INFO] [stdout] 4eecb79e2afb514a5dcaa23dc681f058fa5f96c8b6489905e5cd1f8a1dacbeff