[INFO] fetching crate b2 0.1.0...
[INFO] testing b2-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate b2 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate b2 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 b2 0.1.0
[INFO] finished tweaking crates.io crate b2 0.1.0
[INFO] tweaked toml for crates.io crate b2 0.1.0 written to /workspace/builds/worker-8/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] 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.5.2
[INFO] [stderr]   Downloaded image v0.9.1
[INFO] [stderr]   Downloaded gif v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c519daf14fc1be32b613039e1a03d045f1aef2e463ddaf949354bec07aba92cf
[INFO] running `Command { std: "docker" "start" "-a" "c519daf14fc1be32b613039e1a03d045f1aef2e463ddaf949354bec07aba92cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c519daf14fc1be32b613039e1a03d045f1aef2e463ddaf949354bec07aba92cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c519daf14fc1be32b613039e1a03d045f1aef2e463ddaf949354bec07aba92cf", kill_on_drop: false }`
[INFO] [stdout] c519daf14fc1be32b613039e1a03d045f1aef2e463ddaf949354bec07aba92cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6bdd1123ce7a8dcbe8d7383641fa6266be406069b2f30a65fb02c2c7dae71a11
[INFO] running `Command { std: "docker" "start" "-a" "6bdd1123ce7a8dcbe8d7383641fa6266be406069b2f30a65fb02c2c7dae71a11", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling gif v0.8.0
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling png v0.5.2
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling image v0.9.1
[INFO] [stderr]    Compiling b2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.18s
[INFO] running `Command { std: "docker" "inspect" "6bdd1123ce7a8dcbe8d7383641fa6266be406069b2f30a65fb02c2c7dae71a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdd1123ce7a8dcbe8d7383641fa6266be406069b2f30a65fb02c2c7dae71a11", kill_on_drop: false }`
[INFO] [stdout] 6bdd1123ce7a8dcbe8d7383641fa6266be406069b2f30a65fb02c2c7dae71a11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 7aba1e6b937fa697704742c45315e5cf598614d557e08e9c52ebccf5d59609e4
[INFO] running `Command { std: "docker" "start" "-a" "7aba1e6b937fa697704742c45315e5cf598614d557e08e9c52ebccf5d59609e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling b2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "7aba1e6b937fa697704742c45315e5cf598614d557e08e9c52ebccf5d59609e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aba1e6b937fa697704742c45315e5cf598614d557e08e9c52ebccf5d59609e4", kill_on_drop: false }`
[INFO] [stdout] 7aba1e6b937fa697704742c45315e5cf598614d557e08e9c52ebccf5d59609e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 16db7ae576b9e72da90bf04da67774a63b32757e1e2b14381708606b2843390b
[INFO] running `Command { std: "docker" "start" "-a" "16db7ae576b9e72da90bf04da67774a63b32757e1e2b14381708606b2843390b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(Debug, RustcDecodable)]
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `b2` (bin "b2" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/b2-99d335d0673aea5a)
[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" "16db7ae576b9e72da90bf04da67774a63b32757e1e2b14381708606b2843390b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16db7ae576b9e72da90bf04da67774a63b32757e1e2b14381708606b2843390b", kill_on_drop: false }`
[INFO] [stdout] 16db7ae576b9e72da90bf04da67774a63b32757e1e2b14381708606b2843390b