[INFO] fetching crate symbol 0.1.7...
[INFO] testing symbol-0.1.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate symbol 0.1.7 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate symbol 0.1.7 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 symbol 0.1.7
[INFO] finished tweaking crates.io crate symbol 0.1.7
[INFO] tweaked toml for crates.io crate symbol 0.1.7 written to /workspace/builds/worker-37/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] bb751f254aa2ba5519c724e63a6144b41a05e67d63fbcc5f784f51e089dc483d
[INFO] running `Command { std: "docker" "start" "-a" "bb751f254aa2ba5519c724e63a6144b41a05e67d63fbcc5f784f51e089dc483d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb751f254aa2ba5519c724e63a6144b41a05e67d63fbcc5f784f51e089dc483d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb751f254aa2ba5519c724e63a6144b41a05e67d63fbcc5f784f51e089dc483d", kill_on_drop: false }`
[INFO] [stdout] bb751f254aa2ba5519c724e63a6144b41a05e67d63fbcc5f784f51e089dc483d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] ff6eee4ace1890140b8052006faeccdf30eb6fa5c4e0a2f93cc1790ae26aa4c2
[INFO] running `Command { std: "docker" "start" "-a" "ff6eee4ace1890140b8052006faeccdf30eb6fa5c4e0a2f93cc1790ae26aa4c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling symbol v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "ff6eee4ace1890140b8052006faeccdf30eb6fa5c4e0a2f93cc1790ae26aa4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6eee4ace1890140b8052006faeccdf30eb6fa5c4e0a2f93cc1790ae26aa4c2", kill_on_drop: false }`
[INFO] [stdout] ff6eee4ace1890140b8052006faeccdf30eb6fa5c4e0a2f93cc1790ae26aa4c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] c92b78b43b59d1ce06af6a022ba62475b5683b70bba754b0f6b99b6b0d593637
[INFO] running `Command { std: "docker" "start" "-a" "c92b78b43b59d1ce06af6a022ba62475b5683b70bba754b0f6b99b6b0d593637", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbol v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "c92b78b43b59d1ce06af6a022ba62475b5683b70bba754b0f6b99b6b0d593637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92b78b43b59d1ce06af6a022ba62475b5683b70bba754b0f6b99b6b0d593637", kill_on_drop: false }`
[INFO] [stdout] c92b78b43b59d1ce06af6a022ba62475b5683b70bba754b0f6b99b6b0d593637
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 3c9980002773d21a7f2ab8e46b970ab414c91795eb08de25ce0c52eb0fcc87b7
[INFO] running `Command { std: "docker" "start" "-a" "3c9980002773d21a7f2ab8e46b970ab414c91795eb08de25ce0c52eb0fcc87b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/symbol-f34feb21a44ab1d3)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbol
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c9980002773d21a7f2ab8e46b970ab414c91795eb08de25ce0c52eb0fcc87b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9980002773d21a7f2ab8e46b970ab414c91795eb08de25ce0c52eb0fcc87b7", kill_on_drop: false }`
[INFO] [stdout] 3c9980002773d21a7f2ab8e46b970ab414c91795eb08de25ce0c52eb0fcc87b7