[INFO] fetching crate smalltree 0.0.1...
[INFO] testing smalltree-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate smalltree 0.0.1 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate smalltree 0.0.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smalltree 0.0.1
[INFO] finished tweaking crates.io crate smalltree 0.0.1
[INFO] tweaked toml for crates.io crate smalltree 0.0.1 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed4835a5e82df5e43abd3648c7270579ab70da26772e0b6fd85855547793be55
[INFO] running `Command { std: "docker" "start" "-a" "ed4835a5e82df5e43abd3648c7270579ab70da26772e0b6fd85855547793be55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed4835a5e82df5e43abd3648c7270579ab70da26772e0b6fd85855547793be55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4835a5e82df5e43abd3648c7270579ab70da26772e0b6fd85855547793be55", kill_on_drop: false }`
[INFO] [stdout] ed4835a5e82df5e43abd3648c7270579ab70da26772e0b6fd85855547793be55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6389bc3c58a475ced3db5880fd33996f286120253805c5f132f2c013f1e650de
[INFO] running `Command { std: "docker" "start" "-a" "6389bc3c58a475ced3db5880fd33996f286120253805c5f132f2c013f1e650de", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling smallgraph v0.0.7
[INFO] [stderr]    Compiling smalltree v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "6389bc3c58a475ced3db5880fd33996f286120253805c5f132f2c013f1e650de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6389bc3c58a475ced3db5880fd33996f286120253805c5f132f2c013f1e650de", kill_on_drop: false }`
[INFO] [stdout] 6389bc3c58a475ced3db5880fd33996f286120253805c5f132f2c013f1e650de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2107565b78eb780258e8e8a53876543193bdceb34a9bb09f6781c4b4ed0db6b7
[INFO] running `Command { std: "docker" "start" "-a" "2107565b78eb780258e8e8a53876543193bdceb34a9bb09f6781c4b4ed0db6b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling smalltree v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "2107565b78eb780258e8e8a53876543193bdceb34a9bb09f6781c4b4ed0db6b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2107565b78eb780258e8e8a53876543193bdceb34a9bb09f6781c4b4ed0db6b7", kill_on_drop: false }`
[INFO] [stdout] 2107565b78eb780258e8e8a53876543193bdceb34a9bb09f6781c4b4ed0db6b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e2b9ae3aed97c3a22de759a1f68c973ee3dd589547c6da2bf5a291a7e0c18b4
[INFO] running `Command { std: "docker" "start" "-a" "2e2b9ae3aed97c3a22de759a1f68c973ee3dd589547c6da2bf5a291a7e0c18b4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/smalltree-71f92bee00f96371)
[INFO] [stderr]    Doc-tests smalltree
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_basic_0 ... ok
[INFO] [stdout] test tests::test_basic_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "2e2b9ae3aed97c3a22de759a1f68c973ee3dd589547c6da2bf5a291a7e0c18b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e2b9ae3aed97c3a22de759a1f68c973ee3dd589547c6da2bf5a291a7e0c18b4", kill_on_drop: false }`
[INFO] [stdout] 2e2b9ae3aed97c3a22de759a1f68c973ee3dd589547c6da2bf5a291a7e0c18b4