[INFO] cloning repository https://github.com/ttzztztz/short-url
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ttzztztz/short-url" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttzztztz%2Fshort-url", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttzztztz%2Fshort-url'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db8c4fc2147583abece334eba6374c3167a6867a
[INFO] testing ttzztztz/short-url against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttzztztz%2Fshort-url" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ttzztztz/short-url on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ttzztztz/short-url
[INFO] finished tweaking git repo https://github.com/ttzztztz/short-url
[INFO] tweaked toml for git repo https://github.com/ttzztztz/short-url written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ttzztztz/short-url already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63d564f292e7f9ed1d230bb09a0ed6d5c56320ef61107060d332ea89866e2abe
[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" "63d564f292e7f9ed1d230bb09a0ed6d5c56320ef61107060d332ea89866e2abe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63d564f292e7f9ed1d230bb09a0ed6d5c56320ef61107060d332ea89866e2abe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d564f292e7f9ed1d230bb09a0ed6d5c56320ef61107060d332ea89866e2abe", kill_on_drop: false }`
[INFO] [stdout] 63d564f292e7f9ed1d230bb09a0ed6d5c56320ef61107060d332ea89866e2abe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e1733dafc1583db5c4125670da3492d84e7b3a6d15776ab37153d5885e73af8c
[INFO] running `Command { std: "docker" "start" "-a" "e1733dafc1583db5c4125670da3492d84e7b3a6d15776ab37153d5885e73af8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling pin-project-lite v0.1.9
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling flate2 v1.0.17
[INFO] [stderr]    Compiling derive_more v0.99.10
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling actix-web-codegen v0.3.0
[INFO] [stderr]    Compiling pin-project v0.4.24
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling actix-threadpool v0.3.3
[INFO] [stderr]    Compiling actix-service v1.0.6
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling actix-rt v1.1.1
[INFO] [stderr]    Compiling trust-dns-proto v0.19.5
[INFO] [stderr]    Compiling actix-codec v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.6
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling actix-utils v2.0.0
[INFO] [stderr]    Compiling actix-server v1.0.4
[INFO] [stderr]    Compiling actix-tls v2.0.0
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling actix-testing v1.0.1
[INFO] [stderr]    Compiling trust-dns-resolver v0.19.5
[INFO] [stderr]    Compiling actix-connect v2.0.0
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling actix-router v0.2.5
[INFO] [stderr]    Compiling actix-http v2.0.0
[INFO] [stderr]    Compiling awc v2.0.0
[INFO] [stderr]    Compiling actix-web v3.0.2
[INFO] [stderr]    Compiling short-url v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `write_map`
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn write_map(key: String, value: String) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `persist`
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn persist() -> io::Result<()> {
[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 1m 09s
[INFO] running `Command { std: "docker" "inspect" "e1733dafc1583db5c4125670da3492d84e7b3a6d15776ab37153d5885e73af8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1733dafc1583db5c4125670da3492d84e7b3a6d15776ab37153d5885e73af8c", kill_on_drop: false }`
[INFO] [stdout] e1733dafc1583db5c4125670da3492d84e7b3a6d15776ab37153d5885e73af8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1aa6a15de515f7cb7475412d9e3921cca8c49afff8ea0ba8bd31669f04a80122
[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" "1aa6a15de515f7cb7475412d9e3921cca8c49afff8ea0ba8bd31669f04a80122", kill_on_drop: false }`
[INFO] [stderr]    Compiling short-url v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `write_map`
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn write_map(key: String, value: String) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `persist`
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn persist() -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "1aa6a15de515f7cb7475412d9e3921cca8c49afff8ea0ba8bd31669f04a80122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa6a15de515f7cb7475412d9e3921cca8c49afff8ea0ba8bd31669f04a80122", kill_on_drop: false }`
[INFO] [stdout] 1aa6a15de515f7cb7475412d9e3921cca8c49afff8ea0ba8bd31669f04a80122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e41fb3725ca1dfafa25a73fb32fee91d3598b74483efd4c8ee80333cdec466b9
[INFO] running `Command { std: "docker" "start" "-a" "e41fb3725ca1dfafa25a73fb32fee91d3598b74483efd4c8ee80333cdec466b9", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `write_map`
[INFO] [stderr]   --> src/main.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn write_map(key: String, value: String) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `persist`
[INFO] [stderr]   --> src/main.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn persist() -> io::Result<()> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `short-url` (bin "short-url" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/short_url-84f54249524b9e84)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e41fb3725ca1dfafa25a73fb32fee91d3598b74483efd4c8ee80333cdec466b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41fb3725ca1dfafa25a73fb32fee91d3598b74483efd4c8ee80333cdec466b9", kill_on_drop: false }`
[INFO] [stdout] e41fb3725ca1dfafa25a73fb32fee91d3598b74483efd4c8ee80333cdec466b9