[INFO] cloning repository https://github.com/antoineboquet/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antoineboquet/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoineboquet%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoineboquet%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a44bf03b5845956c3162e02ca39f10cbf2a869b7
[INFO] testing antoineboquet/rust-playground against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoineboquet%2Frust-playground" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antoineboquet/rust-playground 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/antoineboquet/rust-playground
[INFO] finished tweaking git repo https://github.com/antoineboquet/rust-playground
[INFO] tweaked toml for git repo https://github.com/antoineboquet/rust-playground written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/antoineboquet/rust-playground 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] [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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] c4ec62a27da4200ca8f14af86383c1e79069424f4d33395c1e664cfbaa871b25
[INFO] running `Command { std: "docker" "start" "-a" "c4ec62a27da4200ca8f14af86383c1e79069424f4d33395c1e664cfbaa871b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4ec62a27da4200ca8f14af86383c1e79069424f4d33395c1e664cfbaa871b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4ec62a27da4200ca8f14af86383c1e79069424f4d33395c1e664cfbaa871b25", kill_on_drop: false }`
[INFO] [stdout] c4ec62a27da4200ca8f14af86383c1e79069424f4d33395c1e664cfbaa871b25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] [stdout] 29191e3abbdf049ba5be69f2a6d7d6fc14c37924f87e392c0c7a9cdb2c0382b2
[INFO] running `Command { std: "docker" "start" "-a" "29191e3abbdf049ba5be69f2a6d7d6fc14c37924f87e392c0c7a9cdb2c0382b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-playground v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "29191e3abbdf049ba5be69f2a6d7d6fc14c37924f87e392c0c7a9cdb2c0382b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29191e3abbdf049ba5be69f2a6d7d6fc14c37924f87e392c0c7a9cdb2c0382b2", kill_on_drop: false }`
[INFO] [stdout] 29191e3abbdf049ba5be69f2a6d7d6fc14c37924f87e392c0c7a9cdb2c0382b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 7094e3c1928b3f8e47df2778a2fd8e69995cba93e986bd4ccffbc0c04e1eb9ab
[INFO] running `Command { std: "docker" "start" "-a" "7094e3c1928b3f8e47df2778a2fd8e69995cba93e986bd4ccffbc0c04e1eb9ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "7094e3c1928b3f8e47df2778a2fd8e69995cba93e986bd4ccffbc0c04e1eb9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7094e3c1928b3f8e47df2778a2fd8e69995cba93e986bd4ccffbc0c04e1eb9ab", kill_on_drop: false }`
[INFO] [stdout] 7094e3c1928b3f8e47df2778a2fd8e69995cba93e986bd4ccffbc0c04e1eb9ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] [stdout] e549ff8dea2315e0f1d68c425b5a6dd17ceca6a18382b8c5d3d397d83453bb46
[INFO] running `Command { std: "docker" "start" "-a" "e549ff8dea2315e0f1d68c425b5a6dd17ceca6a18382b8c5d3d397d83453bb46", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_playground-690f110ebfedf389)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test trie::tests::contains ... ok
[INFO] [stdout] test trie::tests::remove ... ok
[INFO] [stdout] test trie::tests::starts_with ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-playground
[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" "e549ff8dea2315e0f1d68c425b5a6dd17ceca6a18382b8c5d3d397d83453bb46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e549ff8dea2315e0f1d68c425b5a6dd17ceca6a18382b8c5d3d397d83453bb46", kill_on_drop: false }`
[INFO] [stdout] e549ff8dea2315e0f1d68c425b5a6dd17ceca6a18382b8c5d3d397d83453bb46