[INFO] fetching crate tc-error 0.2.5...
[INFO] testing tc-error-0.2.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tc-error 0.2.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tc-error 0.2.5 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 tc-error 0.2.5
[INFO] finished tweaking crates.io crate tc-error 0.2.5
[INFO] tweaked toml for crates.io crate tc-error 0.2.5 written to /workspace/builds/worker-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1ac5659fe9b87a205683d93f10c8997d6a15cb1ad22e5a251722f24a2e76a9dc
[INFO] running `Command { std: "docker" "start" "-a" "1ac5659fe9b87a205683d93f10c8997d6a15cb1ad22e5a251722f24a2e76a9dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ac5659fe9b87a205683d93f10c8997d6a15cb1ad22e5a251722f24a2e76a9dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac5659fe9b87a205683d93f10c8997d6a15cb1ad22e5a251722f24a2e76a9dc", kill_on_drop: false }`
[INFO] [stdout] 1ac5659fe9b87a205683d93f10c8997d6a15cb1ad22e5a251722f24a2e76a9dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 07e0e0deb9dde2a8fc20d219a7ff0c01e91852cc77c256c5f945febc62e47e69
[INFO] running `Command { std: "docker" "start" "-a" "07e0e0deb9dde2a8fc20d219a7ff0c01e91852cc77c256c5f945febc62e47e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling destream v0.5.0
[INFO] [stderr]    Compiling tc-error v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.20s
[INFO] running `Command { std: "docker" "inspect" "07e0e0deb9dde2a8fc20d219a7ff0c01e91852cc77c256c5f945febc62e47e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e0e0deb9dde2a8fc20d219a7ff0c01e91852cc77c256c5f945febc62e47e69", kill_on_drop: false }`
[INFO] [stdout] 07e0e0deb9dde2a8fc20d219a7ff0c01e91852cc77c256c5f945febc62e47e69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 486fc0c15593d74c80dc503b44d207f064f7571480a0f36efcf3bcc41eeb1335
[INFO] running `Command { std: "docker" "start" "-a" "486fc0c15593d74c80dc503b44d207f064f7571480a0f36efcf3bcc41eeb1335", kill_on_drop: false }`
[INFO] [stderr]    Compiling tc-error v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "486fc0c15593d74c80dc503b44d207f064f7571480a0f36efcf3bcc41eeb1335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "486fc0c15593d74c80dc503b44d207f064f7571480a0f36efcf3bcc41eeb1335", kill_on_drop: false }`
[INFO] [stdout] 486fc0c15593d74c80dc503b44d207f064f7571480a0f36efcf3bcc41eeb1335
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 23d892f2b208957707566d781b820954c37a41d93b31d69c0c8dc2144e90dfa5
[INFO] running `Command { std: "docker" "start" "-a" "23d892f2b208957707566d781b820954c37a41d93b31d69c0c8dc2144e90dfa5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tc_error-e5500012a61fb396)
[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 tc-error
[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" "23d892f2b208957707566d781b820954c37a41d93b31d69c0c8dc2144e90dfa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d892f2b208957707566d781b820954c37a41d93b31d69c0c8dc2144e90dfa5", kill_on_drop: false }`
[INFO] [stdout] 23d892f2b208957707566d781b820954c37a41d93b31d69c0c8dc2144e90dfa5