[INFO] fetching crate env-snapshot 0.2.0...
[INFO] testing env-snapshot-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate env-snapshot 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate env-snapshot 0.2.0 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 env-snapshot 0.2.0
[INFO] finished tweaking crates.io crate env-snapshot 0.2.0
[INFO] tweaked toml for crates.io crate env-snapshot 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate env-snapshot 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_enum_derive v0.5.2
[INFO] [stderr]   Downloaded num_enum v0.5.2
[INFO] [stderr]   Downloaded autojson v0.1.0
[INFO] [stderr]   Downloaded flexbuffers v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 3ecb3a1bb6708d6a40d42f90bd67fa598db0b552bb53a0f9da480c0e7091f52f
[INFO] running `Command { std: "docker" "start" "-a" "3ecb3a1bb6708d6a40d42f90bd67fa598db0b552bb53a0f9da480c0e7091f52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ecb3a1bb6708d6a40d42f90bd67fa598db0b552bb53a0f9da480c0e7091f52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecb3a1bb6708d6a40d42f90bd67fa598db0b552bb53a0f9da480c0e7091f52f", kill_on_drop: false }`
[INFO] [stdout] 3ecb3a1bb6708d6a40d42f90bd67fa598db0b552bb53a0f9da480c0e7091f52f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f317f4d06ad330f4294fb904d4c8d98f8802a8d0b4e75e7571ead448072fcf01
[INFO] running `Command { std: "docker" "start" "-a" "f317f4d06ad330f4294fb904d4c8d98f8802a8d0b4e75e7571ead448072fcf01", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling subprocess v0.2.7
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling autojson v0.1.0
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.2
[INFO] [stderr]    Compiling num_enum v0.5.2
[INFO] [stderr]    Compiling flexbuffers v2.0.0
[INFO] [stderr]    Compiling env-snapshot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.68s
[INFO] running `Command { std: "docker" "inspect" "f317f4d06ad330f4294fb904d4c8d98f8802a8d0b4e75e7571ead448072fcf01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f317f4d06ad330f4294fb904d4c8d98f8802a8d0b4e75e7571ead448072fcf01", kill_on_drop: false }`
[INFO] [stdout] f317f4d06ad330f4294fb904d4c8d98f8802a8d0b4e75e7571ead448072fcf01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 0a300d18597367b3fc1a7e64e4e6cbad67f3e36cc71845f32b2c60c9bf8a5919
[INFO] running `Command { std: "docker" "start" "-a" "0a300d18597367b3fc1a7e64e4e6cbad67f3e36cc71845f32b2c60c9bf8a5919", kill_on_drop: false }`
[INFO] [stderr]    Compiling env-snapshot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "0a300d18597367b3fc1a7e64e4e6cbad67f3e36cc71845f32b2c60c9bf8a5919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a300d18597367b3fc1a7e64e4e6cbad67f3e36cc71845f32b2c60c9bf8a5919", kill_on_drop: false }`
[INFO] [stdout] 0a300d18597367b3fc1a7e64e4e6cbad67f3e36cc71845f32b2c60c9bf8a5919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4ce12a3176b451aa6871d3e859d645f25d3b3622894c0abf4fd667750013d701
[INFO] running `Command { std: "docker" "start" "-a" "4ce12a3176b451aa6871d3e859d645f25d3b3622894c0abf4fd667750013d701", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/env_snapshot-5e467c1addbe0d64)
[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" "4ce12a3176b451aa6871d3e859d645f25d3b3622894c0abf4fd667750013d701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ce12a3176b451aa6871d3e859d645f25d3b3622894c0abf4fd667750013d701", kill_on_drop: false }`
[INFO] [stdout] 4ce12a3176b451aa6871d3e859d645f25d3b3622894c0abf4fd667750013d701