[INFO] fetching crate stackblur 0.1.0...
[INFO] testing stackblur-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate stackblur 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate stackblur 0.1.0 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 stackblur 0.1.0
[INFO] finished tweaking crates.io crate stackblur 0.1.0
[INFO] tweaked toml for crates.io crate stackblur 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate stackblur 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 323a1a2f27e2aa0b7076c54661079e636f28f7e252a6bb27967e0c62c1f655f7
[INFO] running `Command { std: "docker" "start" "-a" "323a1a2f27e2aa0b7076c54661079e636f28f7e252a6bb27967e0c62c1f655f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "323a1a2f27e2aa0b7076c54661079e636f28f7e252a6bb27967e0c62c1f655f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323a1a2f27e2aa0b7076c54661079e636f28f7e252a6bb27967e0c62c1f655f7", kill_on_drop: false }`
[INFO] [stdout] 323a1a2f27e2aa0b7076c54661079e636f28f7e252a6bb27967e0c62c1f655f7
[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] 2fc2a89e20e6280d47c1eb24319214bb003dee4ed7063861d6cbcc0d5e8110cf
[INFO] running `Command { std: "docker" "start" "-a" "2fc2a89e20e6280d47c1eb24319214bb003dee4ed7063861d6cbcc0d5e8110cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackblur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "2fc2a89e20e6280d47c1eb24319214bb003dee4ed7063861d6cbcc0d5e8110cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc2a89e20e6280d47c1eb24319214bb003dee4ed7063861d6cbcc0d5e8110cf", kill_on_drop: false }`
[INFO] [stdout] 2fc2a89e20e6280d47c1eb24319214bb003dee4ed7063861d6cbcc0d5e8110cf
[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] 4c12c3adaa1f4486f82682ea8779a7c7e4cac80c7affdd84a5a1a55228c7e6b8
[INFO] running `Command { std: "docker" "start" "-a" "4c12c3adaa1f4486f82682ea8779a7c7e4cac80c7affdd84a5a1a55228c7e6b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling stackblur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "4c12c3adaa1f4486f82682ea8779a7c7e4cac80c7affdd84a5a1a55228c7e6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c12c3adaa1f4486f82682ea8779a7c7e4cac80c7affdd84a5a1a55228c7e6b8", kill_on_drop: false }`
[INFO] [stdout] 4c12c3adaa1f4486f82682ea8779a7c7e4cac80c7affdd84a5a1a55228c7e6b8
[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] c22567f1666ca529e4aea71b3f2fd8013d0605bf0f065d0b2eae3be1f5cdb973
[INFO] running `Command { std: "docker" "start" "-a" "c22567f1666ca529e4aea71b3f2fd8013d0605bf0f065d0b2eae3be1f5cdb973", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stackblur-d18844342b01f3ec)
[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 stackblur
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c22567f1666ca529e4aea71b3f2fd8013d0605bf0f065d0b2eae3be1f5cdb973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c22567f1666ca529e4aea71b3f2fd8013d0605bf0f065d0b2eae3be1f5cdb973", kill_on_drop: false }`
[INFO] [stdout] c22567f1666ca529e4aea71b3f2fd8013d0605bf0f065d0b2eae3be1f5cdb973