[INFO] fetching crate confy 0.4.0...
[INFO] testing confy-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate confy 0.4.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate confy 0.4.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate confy 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate confy 0.4.0
[INFO] tweaked toml for crates.io crate confy 0.4.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate confy 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded directories v2.0.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.9
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1ba1f3e2c93d26e7558fbf360cbf14f81c14f98fb88e7bf2d4dd03b8ddc94e4
[INFO] running `Command { std: "docker" "start" "-a" "d1ba1f3e2c93d26e7558fbf360cbf14f81c14f98fb88e7bf2d4dd03b8ddc94e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1ba1f3e2c93d26e7558fbf360cbf14f81c14f98fb88e7bf2d4dd03b8ddc94e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ba1f3e2c93d26e7558fbf360cbf14f81c14f98fb88e7bf2d4dd03b8ddc94e4", kill_on_drop: false }`
[INFO] [stdout] d1ba1f3e2c93d26e7558fbf360cbf14f81c14f98fb88e7bf2d4dd03b8ddc94e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb44eda71c11d63c76a3dabf59c4cd523f9d85d5597834262b5262e5766e13f3
[INFO] running `Command { std: "docker" "start" "-a" "fb44eda71c11d63c76a3dabf59c4cd523f9d85d5597834262b5262e5766e13f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling confy v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.27s
[INFO] running `Command { std: "docker" "inspect" "fb44eda71c11d63c76a3dabf59c4cd523f9d85d5597834262b5262e5766e13f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb44eda71c11d63c76a3dabf59c4cd523f9d85d5597834262b5262e5766e13f3", kill_on_drop: false }`
[INFO] [stdout] fb44eda71c11d63c76a3dabf59c4cd523f9d85d5597834262b5262e5766e13f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c79fdb285dd7f37900cda92fa8eb01b241327f5c2d9cf001186692f08f0504f
[INFO] running `Command { std: "docker" "start" "-a" "3c79fdb285dd7f37900cda92fa8eb01b241327f5c2d9cf001186692f08f0504f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling confy v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.61s
[INFO] running `Command { std: "docker" "inspect" "3c79fdb285dd7f37900cda92fa8eb01b241327f5c2d9cf001186692f08f0504f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c79fdb285dd7f37900cda92fa8eb01b241327f5c2d9cf001186692f08f0504f", kill_on_drop: false }`
[INFO] [stdout] 3c79fdb285dd7f37900cda92fa8eb01b241327f5c2d9cf001186692f08f0504f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3819300b56f79681806d507e0c1682c463192e89bfe95dd6e98bfa0af31aabe
[INFO] running `Command { std: "docker" "start" "-a" "d3819300b56f79681806d507e0c1682c463192e89bfe95dd6e98bfa0af31aabe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/confy-5b9bbe36abaeb88a)
[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 confy
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - store (line 180) - compile ... ok
[INFO] [stdout] test src/lib.rs - load (line 89) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 39) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d3819300b56f79681806d507e0c1682c463192e89bfe95dd6e98bfa0af31aabe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3819300b56f79681806d507e0c1682c463192e89bfe95dd6e98bfa0af31aabe", kill_on_drop: false }`
[INFO] [stdout] d3819300b56f79681806d507e0c1682c463192e89bfe95dd6e98bfa0af31aabe