[INFO] crate error-context 0.1.2 is already in cache
[INFO] testing error-context-0.1.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate error-context 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate error-context 0.1.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate error-context 0.1.2
[INFO] finished tweaking crates.io crate error-context 0.1.2
[INFO] tweaked toml for crates.io crate error-context 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82b4f8a388719052917f1df8aa8740d3e9818b40c41a212082246294df44b8a3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82b4f8a388719052917f1df8aa8740d3e9818b40c41a212082246294df44b8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82b4f8a388719052917f1df8aa8740d3e9818b40c41a212082246294df44b8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82b4f8a388719052917f1df8aa8740d3e9818b40c41a212082246294df44b8a3", kill_on_drop: false }`
[INFO] [stdout] 82b4f8a388719052917f1df8aa8740d3e9818b40c41a212082246294df44b8a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 541be325df689aba36bf65865903b8892056d8e179809e0076ab439ec4d5e7ba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "541be325df689aba36bf65865903b8892056d8e179809e0076ab439ec4d5e7ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-context v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:166:16
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.0.description()
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:229:20
[INFO] [stdout]     |
[INFO] [stdout] 229 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "541be325df689aba36bf65865903b8892056d8e179809e0076ab439ec4d5e7ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541be325df689aba36bf65865903b8892056d8e179809e0076ab439ec4d5e7ba", kill_on_drop: false }`
[INFO] [stdout] 541be325df689aba36bf65865903b8892056d8e179809e0076ab439ec4d5e7ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7c959231dcfe73265102f79b178209ffd7ebff2bb7827982c92c12dc27e19e4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e7c959231dcfe73265102f79b178209ffd7ebff2bb7827982c92c12dc27e19e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_matches v1.3.0
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:166:16
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.0.description()
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:229:20
[INFO] [stdout]     |
[INFO] [stdout] 229 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling error-context v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:166:16
[INFO] [stdout]     |
[INFO] [stdout] 166 |         self.0.description()
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:229:20
[INFO] [stdout]     |
[INFO] [stdout] 229 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "e7c959231dcfe73265102f79b178209ffd7ebff2bb7827982c92c12dc27e19e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c959231dcfe73265102f79b178209ffd7ebff2bb7827982c92c12dc27e19e4", kill_on_drop: false }`
[INFO] [stdout] e7c959231dcfe73265102f79b178209ffd7ebff2bb7827982c92c12dc27e19e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eea3417e35f7807b7a9c9c160a6032f1b925d788778c3c1ccab0be5e152ec4df
[INFO] running `Command { std: "docker" "start" "-a" "eea3417e35f7807b7a9c9c160a6032f1b925d788778c3c1ccab0be5e152ec4df", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:166:16
[INFO] [stderr]     |
[INFO] [stderr] 166 |         self.0.description()
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:229:20
[INFO] [stderr]     |
[INFO] [stderr] 229 |         self.error.description()
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:166:16
[INFO] [stderr]     |
[INFO] [stderr] 166 |         self.0.description()
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:229:20
[INFO] [stderr]     |
[INFO] [stderr] 229 |         self.error.description()
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/error_context-8b8515c1bdc17635
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_in_context_of_wrapped_context ... ok
[INFO] [stdout] test tests::test_in_type_context ... ok
[INFO] [stdout] test tests::test_in_context_of_type_context ... ok
[INFO] [stdout] test tests::test_wrapped_context_nested ... ok
[INFO] [stdout] test tests::test_wrap_in_context_of_type_context ... ok
[INFO] [stdout] test tests::test_wrapped_context ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests error-context
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eea3417e35f7807b7a9c9c160a6032f1b925d788778c3c1ccab0be5e152ec4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea3417e35f7807b7a9c9c160a6032f1b925d788778c3c1ccab0be5e152ec4df", kill_on_drop: false }`
[INFO] [stdout] eea3417e35f7807b7a9c9c160a6032f1b925d788778c3c1ccab0be5e152ec4df