[INFO] fetching crate amp-serde 0.1.0...
[INFO] testing amp-serde-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate amp-serde 0.1.0 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate amp-serde 0.1.0 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 amp-serde 0.1.0
[INFO] finished tweaking crates.io crate amp-serde 0.1.0
[INFO] tweaked toml for crates.io crate amp-serde 0.1.0 written to /workspace/builds/worker-115/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 93d62362eb2a9a0f47af00e6d513f6e0579e0030af96c85e161c26d542c2ea83
[INFO] running `Command { std: "docker" "start" "-a" "93d62362eb2a9a0f47af00e6d513f6e0579e0030af96c85e161c26d542c2ea83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93d62362eb2a9a0f47af00e6d513f6e0579e0030af96c85e161c26d542c2ea83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d62362eb2a9a0f47af00e6d513f6e0579e0030af96c85e161c26d542c2ea83", kill_on_drop: false }`
[INFO] [stdout] 93d62362eb2a9a0f47af00e6d513f6e0579e0030af96c85e161c26d542c2ea83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] df19d29beeccd407da313bd4cc58bff3d1b92c8dd3a89d94181758f24b466e3a
[INFO] running `Command { std: "docker" "start" "-a" "df19d29beeccd407da313bd4cc58bff3d1b92c8dd3a89d94181758f24b466e3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling amp-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.44s
[INFO] running `Command { std: "docker" "inspect" "df19d29beeccd407da313bd4cc58bff3d1b92c8dd3a89d94181758f24b466e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df19d29beeccd407da313bd4cc58bff3d1b92c8dd3a89d94181758f24b466e3a", kill_on_drop: false }`
[INFO] [stdout] df19d29beeccd407da313bd4cc58bff3d1b92c8dd3a89d94181758f24b466e3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] d70504b28e965f3516309d54bf88de069f9bdf57c19be21062f059e09e9be2fa
[INFO] running `Command { std: "docker" "start" "-a" "d70504b28e965f3516309d54bf88de069f9bdf57c19be21062f059e09e9be2fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling amp-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "d70504b28e965f3516309d54bf88de069f9bdf57c19be21062f059e09e9be2fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70504b28e965f3516309d54bf88de069f9bdf57c19be21062f059e09e9be2fa", kill_on_drop: false }`
[INFO] [stdout] d70504b28e965f3516309d54bf88de069f9bdf57c19be21062f059e09e9be2fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] a32fd8c0a2a8a23dc9124d18b3296eb4ca228070b6a177b89db48a3e0c674c84
[INFO] running `Command { std: "docker" "start" "-a" "a32fd8c0a2a8a23dc9124d18b3296eb4ca228070b6a177b89db48a3e0c674c84", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/amp_serde-67a8bc3aea17bc91)
[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]    Doc-tests amp-serde
[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" "a32fd8c0a2a8a23dc9124d18b3296eb4ca228070b6a177b89db48a3e0c674c84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a32fd8c0a2a8a23dc9124d18b3296eb4ca228070b6a177b89db48a3e0c674c84", kill_on_drop: false }`
[INFO] [stdout] a32fd8c0a2a8a23dc9124d18b3296eb4ca228070b6a177b89db48a3e0c674c84