[INFO] fetching crate snek 0.3.0...
[INFO] testing snek-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate snek 0.3.0 into /workspace/builds/worker-106/source
[INFO] validating manifest of crates.io crate snek 0.3.0 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 crates.io crate snek 0.3.0
[INFO] finished tweaking crates.io crate snek 0.3.0
[INFO] tweaked toml for crates.io crate snek 0.3.0 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] fc1e68b0a91d3cfc441a5a2b037aec67d3cf64b4c20b10e614a2bf3f0337f6cb
[INFO] running `Command { std: "docker" "start" "-a" "fc1e68b0a91d3cfc441a5a2b037aec67d3cf64b4c20b10e614a2bf3f0337f6cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc1e68b0a91d3cfc441a5a2b037aec67d3cf64b4c20b10e614a2bf3f0337f6cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc1e68b0a91d3cfc441a5a2b037aec67d3cf64b4c20b10e614a2bf3f0337f6cb", kill_on_drop: false }`
[INFO] [stdout] fc1e68b0a91d3cfc441a5a2b037aec67d3cf64b4c20b10e614a2bf3f0337f6cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 5ada5295698ee95924f84450b00d4a54be6617b46da7c86da09a404890d05a92
[INFO] running `Command { std: "docker" "start" "-a" "5ada5295698ee95924f84450b00d4a54be6617b46da7c86da09a404890d05a92", 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] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling snek v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.69s
[INFO] running `Command { std: "docker" "inspect" "5ada5295698ee95924f84450b00d4a54be6617b46da7c86da09a404890d05a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ada5295698ee95924f84450b00d4a54be6617b46da7c86da09a404890d05a92", kill_on_drop: false }`
[INFO] [stdout] 5ada5295698ee95924f84450b00d4a54be6617b46da7c86da09a404890d05a92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 0403f14d90c0cfcfcade120c308897d4e1c44bff9a4538d255752f75d0087634
[INFO] running `Command { std: "docker" "start" "-a" "0403f14d90c0cfcfcade120c308897d4e1c44bff9a4538d255752f75d0087634", kill_on_drop: false }`
[INFO] [stderr]    Compiling snek v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "0403f14d90c0cfcfcade120c308897d4e1c44bff9a4538d255752f75d0087634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0403f14d90c0cfcfcade120c308897d4e1c44bff9a4538d255752f75d0087634", kill_on_drop: false }`
[INFO] [stdout] 0403f14d90c0cfcfcade120c308897d4e1c44bff9a4538d255752f75d0087634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 2d5c330cd74a8bccb6f610cf16860e90d09d0e8681bb42145c6f5164fbc885a7
[INFO] running `Command { std: "docker" "start" "-a" "2d5c330cd74a8bccb6f610cf16860e90d09d0e8681bb42145c6f5164fbc885a7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snek-f873d6bf8ae15e5e)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests snek
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/symbol.rs - symbol::Symbol::with (line 55) ... ok
[INFO] [stdout] test src/snek/mod.rs - snek::Snek (line 49) ... ok
[INFO] [stdout] test src/lib.rs - snek (line 91) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - snek (line 110) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d5c330cd74a8bccb6f610cf16860e90d09d0e8681bb42145c6f5164fbc885a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d5c330cd74a8bccb6f610cf16860e90d09d0e8681bb42145c6f5164fbc885a7", kill_on_drop: false }`
[INFO] [stdout] 2d5c330cd74a8bccb6f610cf16860e90d09d0e8681bb42145c6f5164fbc885a7