[INFO] fetching crate polyhorn 0.4.1...
[INFO] testing polyhorn-0.4.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate polyhorn 0.4.1 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate polyhorn 0.4.1 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 polyhorn 0.4.1
[INFO] finished tweaking crates.io crate polyhorn 0.4.1
[INFO] tweaked toml for crates.io crate polyhorn 0.4.1 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate crates.io crate polyhorn 0.4.1 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] fe97cd3a8eaaddb45a800c65212602671c5dcff95e9d2ef1a010bf77eae0d33c
[INFO] running `Command { std: "docker" "start" "-a" "fe97cd3a8eaaddb45a800c65212602671c5dcff95e9d2ef1a010bf77eae0d33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe97cd3a8eaaddb45a800c65212602671c5dcff95e9d2ef1a010bf77eae0d33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe97cd3a8eaaddb45a800c65212602671c5dcff95e9d2ef1a010bf77eae0d33c", kill_on_drop: false }`
[INFO] [stdout] fe97cd3a8eaaddb45a800c65212602671c5dcff95e9d2ef1a010bf77eae0d33c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 3eabeee53522b7436677f402929bcdb4a545660feb87e2b3e75ec595c965d855
[INFO] running `Command { std: "docker" "start" "-a" "3eabeee53522b7436677f402929bcdb4a545660feb87e2b3e75ec595c965d855", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling polyhorn-macros v0.4.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]    Compiling semver-parser v0.10.1
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling polyhorn-core v0.4.0
[INFO] [stderr]    Compiling cargo-lock v6.0.0
[INFO] [stderr]    Compiling polyhorn v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.21s
[INFO] running `Command { std: "docker" "inspect" "3eabeee53522b7436677f402929bcdb4a545660feb87e2b3e75ec595c965d855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eabeee53522b7436677f402929bcdb4a545660feb87e2b3e75ec595c965d855", kill_on_drop: false }`
[INFO] [stdout] 3eabeee53522b7436677f402929bcdb4a545660feb87e2b3e75ec595c965d855
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 4da31fa749fe8cbc1d54c75d721d4d602a72f3b029e6ed908b137ecae6c06813
[INFO] running `Command { std: "docker" "start" "-a" "4da31fa749fe8cbc1d54c75d721d4d602a72f3b029e6ed908b137ecae6c06813", kill_on_drop: false }`
[INFO] [stderr]    Compiling polyhorn v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "4da31fa749fe8cbc1d54c75d721d4d602a72f3b029e6ed908b137ecae6c06813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da31fa749fe8cbc1d54c75d721d4d602a72f3b029e6ed908b137ecae6c06813", kill_on_drop: false }`
[INFO] [stdout] 4da31fa749fe8cbc1d54c75d721d4d602a72f3b029e6ed908b137ecae6c06813
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] c6cef698bc6f194bc3c76c8b9232ed418e5d3d23682e1923bd68cd6e76cab2e5
[INFO] running `Command { std: "docker" "start" "-a" "c6cef698bc6f194bc3c76c8b9232ed418e5d3d23682e1923bd68cd6e76cab2e5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polyhorn-9d9adbd91ee2e9e1)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polyhorn-35a8ac1ded5fd89f)
[INFO] [stderr]    Doc-tests polyhorn
[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] [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" "c6cef698bc6f194bc3c76c8b9232ed418e5d3d23682e1923bd68cd6e76cab2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6cef698bc6f194bc3c76c8b9232ed418e5d3d23682e1923bd68cd6e76cab2e5", kill_on_drop: false }`
[INFO] [stdout] c6cef698bc6f194bc3c76c8b9232ed418e5d3d23682e1923bd68cd6e76cab2e5