[INFO] fetching crate error2 0.5.0...
[INFO] testing error2-0.5.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate error2 0.5.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate error2 0.5.0
[INFO] finished tweaking crates.io crate error2 0.5.0
[INFO] tweaked toml for crates.io crate error2 0.5.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate error2 0.5.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate error2 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error2-derive v0.5.0
[INFO] [stderr]   Downloaded from-attr v0.1.3
[INFO] [stderr]   Downloaded append-only-vec v0.1.7
[INFO] [stderr]   Downloaded from-attr-core v0.1.3
[INFO] [stderr]   Downloaded from-attr-macro v0.1.3
[INFO] [stderr]   Downloaded snafu-derive v0.8.5
[INFO] [stderr]   Downloaded snafu v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eae4c98e7436fef0eb6941ae3e83993caceca3e0cd09bbf043003f203fa63bb7
[INFO] running `Command { std: "docker" "start" "-a" "eae4c98e7436fef0eb6941ae3e83993caceca3e0cd09bbf043003f203fa63bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eae4c98e7436fef0eb6941ae3e83993caceca3e0cd09bbf043003f203fa63bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae4c98e7436fef0eb6941ae3e83993caceca3e0cd09bbf043003f203fa63bb7", kill_on_drop: false }`
[INFO] [stdout] eae4c98e7436fef0eb6941ae3e83993caceca3e0cd09bbf043003f203fa63bb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99d66b6c9523761b01c9441771d6975d5c6f4493d94a47b69f1191fa35050fc5
[INFO] running `Command { std: "docker" "start" "-a" "99d66b6c9523761b01c9441771d6975d5c6f4493d94a47b69f1191fa35050fc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling sdd v3.0.8
[INFO] [stderr]    Compiling append-only-vec v0.1.7
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling proc-macro-utils v0.10.0
[INFO] [stderr]    Compiling scc v2.3.3
[INFO] [stderr]    Compiling from-attr-core v0.1.3
[INFO] [stderr]    Compiling quote-use-macros v0.8.4
[INFO] [stderr]    Compiling quote-use v0.8.4
[INFO] [stderr]    Compiling from-attr-macro v0.1.3
[INFO] [stderr]    Compiling from-attr v0.1.3
[INFO] [stderr]    Compiling error2-derive v0.5.0
[INFO] [stderr]    Compiling error2 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `Command { std: "docker" "inspect" "99d66b6c9523761b01c9441771d6975d5c6f4493d94a47b69f1191fa35050fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d66b6c9523761b01c9441771d6975d5c6f4493d94a47b69f1191fa35050fc5", kill_on_drop: false }`
[INFO] [stdout] 99d66b6c9523761b01c9441771d6975d5c6f4493d94a47b69f1191fa35050fc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2c8ba9a5f6e3ccd51ce4216df0db172ab87cc7038664e8aed0610e31e6513cc
[INFO] running `Command { std: "docker" "start" "-a" "d2c8ba9a5f6e3ccd51ce4216df0db172ab87cc7038664e8aed0610e31e6513cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling error2 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.02s
[INFO] running `Command { std: "docker" "inspect" "d2c8ba9a5f6e3ccd51ce4216df0db172ab87cc7038664e8aed0610e31e6513cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c8ba9a5f6e3ccd51ce4216df0db172ab87cc7038664e8aed0610e31e6513cc", kill_on_drop: false }`
[INFO] [stdout] d2c8ba9a5f6e3ccd51ce4216df0db172ab87cc7038664e8aed0610e31e6513cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a97300afefb8751207996a21b6105810029226b7a92f87f0c8144fdf5dfd6cd3
[INFO] running `Command { std: "docker" "start" "-a" "a97300afefb8751207996a21b6105810029226b7a92f87f0c8144fdf5dfd6cd3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/error2-43fe5168779abb1e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test location::tests::test_the_effects_of_tracker_caller ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests error2
[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" "a97300afefb8751207996a21b6105810029226b7a92f87f0c8144fdf5dfd6cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a97300afefb8751207996a21b6105810029226b7a92f87f0c8144fdf5dfd6cd3", kill_on_drop: false }`
[INFO] [stdout] a97300afefb8751207996a21b6105810029226b7a92f87f0c8144fdf5dfd6cd3