[INFO] fetching crate hashcons 0.1.2...
[INFO] testing hashcons-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate hashcons 0.1.2 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate hashcons 0.1.2 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 hashcons 0.1.2
[INFO] finished tweaking crates.io crate hashcons 0.1.2
[INFO] tweaked toml for crates.io crate hashcons 0.1.2 written to /workspace/builds/worker-43/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-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] dd53df3b086a3853ac90ff24c248810d46f83ffa51894f6d83c749d2c6796fa9
[INFO] running `Command { std: "docker" "start" "-a" "dd53df3b086a3853ac90ff24c248810d46f83ffa51894f6d83c749d2c6796fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd53df3b086a3853ac90ff24c248810d46f83ffa51894f6d83c749d2c6796fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd53df3b086a3853ac90ff24c248810d46f83ffa51894f6d83c749d2c6796fa9", kill_on_drop: false }`
[INFO] [stdout] dd53df3b086a3853ac90ff24c248810d46f83ffa51894f6d83c749d2c6796fa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 89d92dc1aa2837720106c4cbe9a31eac6084301a2b4116e1f6af2a1b3db39a44
[INFO] running `Command { std: "docker" "start" "-a" "89d92dc1aa2837720106c4cbe9a31eac6084301a2b4116e1f6af2a1b3db39a44", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling hashcons v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.14s
[INFO] running `Command { std: "docker" "inspect" "89d92dc1aa2837720106c4cbe9a31eac6084301a2b4116e1f6af2a1b3db39a44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89d92dc1aa2837720106c4cbe9a31eac6084301a2b4116e1f6af2a1b3db39a44", kill_on_drop: false }`
[INFO] [stdout] 89d92dc1aa2837720106c4cbe9a31eac6084301a2b4116e1f6af2a1b3db39a44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] e51b2c82985bfec09c710baa839791b31a2b5bbff772deb222941ce79552e225
[INFO] running `Command { std: "docker" "start" "-a" "e51b2c82985bfec09c710baa839791b31a2b5bbff772deb222941ce79552e225", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashcons v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "e51b2c82985bfec09c710baa839791b31a2b5bbff772deb222941ce79552e225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51b2c82985bfec09c710baa839791b31a2b5bbff772deb222941ce79552e225", kill_on_drop: false }`
[INFO] [stdout] e51b2c82985bfec09c710baa839791b31a2b5bbff772deb222941ce79552e225
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 4cae0eded9a39e21dde1d253971053a3e03513ff740463d2c48ce638380f7a1f
[INFO] running `Command { std: "docker" "start" "-a" "4cae0eded9a39e21dde1d253971053a3e03513ff740463d2c48ce638380f7a1f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hashcons-2fc776b661687f3a)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test merkle::list_example::test_elim_forms ... ok
[INFO] [stdout] test merkle::list_example::test_intro_forms ... ok
[INFO] [stdout] test merkle::list_example::test_serde ... 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 hashcons
[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" "4cae0eded9a39e21dde1d253971053a3e03513ff740463d2c48ce638380f7a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cae0eded9a39e21dde1d253971053a3e03513ff740463d2c48ce638380f7a1f", kill_on_drop: false }`
[INFO] [stdout] 4cae0eded9a39e21dde1d253971053a3e03513ff740463d2c48ce638380f7a1f