[INFO] fetching crate cborg 0.3.0...
[INFO] testing cborg-0.3.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate cborg 0.3.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate cborg 0.3.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cborg 0.3.0
[INFO] finished tweaking crates.io crate cborg 0.3.0
[INFO] tweaked toml for crates.io crate cborg 0.3.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0f9428d3544a9ce9c1cd79d84428df9e9f87db6ee69f3264e8ac341cc8bf26c
[INFO] running `Command { std: "docker" "start" "-a" "a0f9428d3544a9ce9c1cd79d84428df9e9f87db6ee69f3264e8ac341cc8bf26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0f9428d3544a9ce9c1cd79d84428df9e9f87db6ee69f3264e8ac341cc8bf26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f9428d3544a9ce9c1cd79d84428df9e9f87db6ee69f3264e8ac341cc8bf26c", kill_on_drop: false }`
[INFO] [stdout] a0f9428d3544a9ce9c1cd79d84428df9e9f87db6ee69f3264e8ac341cc8bf26c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d63a68000cd9e71a02fd1f9d0d8f7fc9fd760fcf4cba5eb55d846a12d7da7c01
[INFO] running `Command { std: "docker" "start" "-a" "d63a68000cd9e71a02fd1f9d0d8f7fc9fd760fcf4cba5eb55d846a12d7da7c01", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cborg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "d63a68000cd9e71a02fd1f9d0d8f7fc9fd760fcf4cba5eb55d846a12d7da7c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63a68000cd9e71a02fd1f9d0d8f7fc9fd760fcf4cba5eb55d846a12d7da7c01", kill_on_drop: false }`
[INFO] [stdout] d63a68000cd9e71a02fd1f9d0d8f7fc9fd760fcf4cba5eb55d846a12d7da7c01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eafd7e8aaddc2169128a481f2402054506a64e0cad7b6a62b7afb2d9b20b0f45
[INFO] running `Command { std: "docker" "start" "-a" "eafd7e8aaddc2169128a481f2402054506a64e0cad7b6a62b7afb2d9b20b0f45", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cborg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]   --> src/lib.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "eafd7e8aaddc2169128a481f2402054506a64e0cad7b6a62b7afb2d9b20b0f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eafd7e8aaddc2169128a481f2402054506a64e0cad7b6a62b7afb2d9b20b0f45", kill_on_drop: false }`
[INFO] [stdout] eafd7e8aaddc2169128a481f2402054506a64e0cad7b6a62b7afb2d9b20b0f45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01bf56bc356fb665a51093c470a74a8e1694de890ab59abbcd1181d922ee341a
[INFO] running `Command { std: "docker" "start" "-a" "01bf56bc356fb665a51093c470a74a8e1694de890ab59abbcd1181d922ee341a", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `error`
[INFO] [stderr]   --> src/lib.rs:42:2
[INFO] [stderr]    |
[INFO] [stderr] 42 |     error: Box<dyn error::Error + Send + Sync>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cborg` (lib) generated 1 warning
[INFO] [stderr] warning: `cborg` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cborg-3d8d0cc7fbd226ca)
[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]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-a2586ba6fb0bcbd2)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test decode_test ... ok
[INFO] [stdout] test decode_to_test ... ok
[INFO] [stdout] test display_test ... ok
[INFO] [stdout] test encode_test ... ok
[INFO] [stdout] test type_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cborg
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - decode_to (line 325) ... ok
[INFO] [stdout] test src/lib.rs - encode (line 347) ... ok
[INFO] [stdout] test src/lib.rs - decode_to (line 317) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01bf56bc356fb665a51093c470a74a8e1694de890ab59abbcd1181d922ee341a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01bf56bc356fb665a51093c470a74a8e1694de890ab59abbcd1181d922ee341a", kill_on_drop: false }`
[INFO] [stdout] 01bf56bc356fb665a51093c470a74a8e1694de890ab59abbcd1181d922ee341a