[INFO] fetching crate standback 0.3.5...
[INFO] testing standback-0.3.5 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate standback 0.3.5 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate standback 0.3.5 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate standback 0.3.5
[INFO] finished tweaking crates.io crate standback 0.3.5
[INFO] tweaked toml for crates.io crate standback 0.3.5 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a93e3a03c03e901e5018f1417136f4a73eece23657380f21f03bb8529368c0c
[INFO] running `Command { std: "docker" "start" "-a" "4a93e3a03c03e901e5018f1417136f4a73eece23657380f21f03bb8529368c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a93e3a03c03e901e5018f1417136f4a73eece23657380f21f03bb8529368c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a93e3a03c03e901e5018f1417136f4a73eece23657380f21f03bb8529368c0c", kill_on_drop: false }`
[INFO] [stdout] 4a93e3a03c03e901e5018f1417136f4a73eece23657380f21f03bb8529368c0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 921980235e7fa478a48369d57d44c438000ec997385868b0d6cfb9b1e4159cbd
[INFO] running `Command { std: "docker" "start" "-a" "921980235e7fa478a48369d57d44c438000ec997385868b0d6cfb9b1e4159cbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling easy-ext v0.2.9
[INFO] [stderr]    Compiling standback v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "921980235e7fa478a48369d57d44c438000ec997385868b0d6cfb9b1e4159cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921980235e7fa478a48369d57d44c438000ec997385868b0d6cfb9b1e4159cbd", kill_on_drop: false }`
[INFO] [stdout] 921980235e7fa478a48369d57d44c438000ec997385868b0d6cfb9b1e4159cbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfe33f3c9ca810ab6874c69fc8c74dc60027e440e6ca394becef2fdbe03fdf48
[INFO] running `Command { std: "docker" "start" "-a" "bfe33f3c9ca810ab6874c69fc8c74dc60027e440e6ca394becef2fdbe03fdf48", kill_on_drop: false }`
[INFO] [stderr]    Compiling standback v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "bfe33f3c9ca810ab6874c69fc8c74dc60027e440e6ca394becef2fdbe03fdf48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe33f3c9ca810ab6874c69fc8c74dc60027e440e6ca394becef2fdbe03fdf48", kill_on_drop: false }`
[INFO] [stdout] bfe33f3c9ca810ab6874c69fc8c74dc60027e440e6ca394becef2fdbe03fdf48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c14ddfacdabb9043053beff760f70ce5f72b701986e3158b4b3fdc1a8181980b
[INFO] running `Command { std: "docker" "start" "-a" "c14ddfacdabb9043053beff760f70ce5f72b701986e3158b4b3fdc1a8181980b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/standback-b8131fe1f7b95b57)
[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 standback
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 17) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 24) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c14ddfacdabb9043053beff760f70ce5f72b701986e3158b4b3fdc1a8181980b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14ddfacdabb9043053beff760f70ce5f72b701986e3158b4b3fdc1a8181980b", kill_on_drop: false }`
[INFO] [stdout] c14ddfacdabb9043053beff760f70ce5f72b701986e3158b4b3fdc1a8181980b