[INFO] fetching crate trapper 2.0.0...
[INFO] testing trapper-2.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate trapper 2.0.0 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate trapper 2.0.0 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 trapper 2.0.0
[INFO] finished tweaking crates.io crate trapper 2.0.0
[INFO] tweaked toml for crates.io crate trapper 2.0.0 written to /workspace/builds/worker-108/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-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] aee6cd474e77863f358d0ed4304085d37bc7ef6cf82544130bd429099671fecd
[INFO] running `Command { std: "docker" "start" "-a" "aee6cd474e77863f358d0ed4304085d37bc7ef6cf82544130bd429099671fecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee6cd474e77863f358d0ed4304085d37bc7ef6cf82544130bd429099671fecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee6cd474e77863f358d0ed4304085d37bc7ef6cf82544130bd429099671fecd", kill_on_drop: false }`
[INFO] [stdout] aee6cd474e77863f358d0ed4304085d37bc7ef6cf82544130bd429099671fecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 668b1d28cbbed15874e9900fb77ec0c2a28846fea9408a184d24e8d763b5609c
[INFO] running `Command { std: "docker" "start" "-a" "668b1d28cbbed15874e9900fb77ec0c2a28846fea9408a184d24e8d763b5609c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling trapper_macro v1.0.0
[INFO] [stderr]    Compiling trapper v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.01s
[INFO] running `Command { std: "docker" "inspect" "668b1d28cbbed15874e9900fb77ec0c2a28846fea9408a184d24e8d763b5609c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668b1d28cbbed15874e9900fb77ec0c2a28846fea9408a184d24e8d763b5609c", kill_on_drop: false }`
[INFO] [stdout] 668b1d28cbbed15874e9900fb77ec0c2a28846fea9408a184d24e8d763b5609c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 333f114e9bc009118e36cb32d0d6d16b26a7d3513a471b0463efb04eb69f41f0
[INFO] running `Command { std: "docker" "start" "-a" "333f114e9bc009118e36cb32d0d6d16b26a7d3513a471b0463efb04eb69f41f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling trapper v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "333f114e9bc009118e36cb32d0d6d16b26a7d3513a471b0463efb04eb69f41f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333f114e9bc009118e36cb32d0d6d16b26a7d3513a471b0463efb04eb69f41f0", kill_on_drop: false }`
[INFO] [stdout] 333f114e9bc009118e36cb32d0d6d16b26a7d3513a471b0463efb04eb69f41f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 95d9c3ffcabbe59e903099805da3e1d3f2138832c4266dc1f70e8c7140793594
[INFO] running `Command { std: "docker" "start" "-a" "95d9c3ffcabbe59e903099805da3e1d3f2138832c4266dc1f70e8c7140793594", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trapper-7b12c68c1cfa8826)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trapper
[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 6 tests
[INFO] [stdout] test src/lib.rs - Wrapper::unwrap (line 34) ... ok
[INFO] [stdout] test src/lib.rs - Wrapper::wrap_ref (line 49) ... ok
[INFO] [stdout] test src/lib.rs - Wrapper::wrap (line 19) ... ok
[INFO] [stdout] test src/lib.rs - Wrapper::unwrap_ref (line 85) ... ok
[INFO] [stdout] test src/lib.rs - Wrapper::wrap_mut (line 65) ... ok
[INFO] [stdout] test src/lib.rs - Wrapper::unwrap_mut (line 102) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95d9c3ffcabbe59e903099805da3e1d3f2138832c4266dc1f70e8c7140793594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d9c3ffcabbe59e903099805da3e1d3f2138832c4266dc1f70e8c7140793594", kill_on_drop: false }`
[INFO] [stdout] 95d9c3ffcabbe59e903099805da3e1d3f2138832c4266dc1f70e8c7140793594