[INFO] cloning repository https://github.com/manglemix/teach-tech
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/manglemix/teach-tech" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanglemix%2Fteach-tech", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanglemix%2Fteach-tech'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b8bbd9b3ff891e2cad3042c99e01ca1efb03959
[INFO] testing manglemix/teach-tech against master#7704328ba5ae8d6ce0ac303c9d5a1a1605906766 for pr-146989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanglemix%2Fteach-tech" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/manglemix/teach-tech
[INFO] finished tweaking git repo https://github.com/manglemix/teach-tech
[INFO] tweaked toml for git repo https://github.com/manglemix/teach-tech written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/manglemix/teach-tech on toolchain 7704328ba5ae8d6ce0ac303c9d5a1a1605906766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/manglemix/teach-tech 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" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "a1ed79721c21ffe0a6aa8b9c742bc3f273461c8f396aa2097b1c2efd0aee6a72", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f1013dff74f6c2896bbc542c3831f2d1b4db7fc72cb8859d0bec0fc0192a4395", kill_on_drop: false }`
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[INFO] [stderr]    Compiling teach-tech v0.1.0 (/opt/rustwide/workdir/teach-tech)
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[INFO] [stderr]    Compiling teach-tech-core v0.1.0 (/opt/rustwide/workdir/teach-tech-core)
[INFO] [stdout] warning: the feature `const_collections_with_hasher` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> teach-tech-core/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_collections_with_hasher)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `build_hasher_default_const_new` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> teach-tech-core/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(build_hasher_default_const_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quick-chat v0.1.0 (/opt/rustwide/workdir/integrations/quick-chat)
[INFO] [stdout] warning: unused variable: `ws`
[INFO] [stdout]   --> integrations/quick-chat/src/lib.rs:22:63
[INFO] [stdout]    |
[INFO] [stdout] 22 |             get(|ws: WebSocketUpgrade| async { ws.on_upgrade(|ws| async move {}) }),
[INFO] [stdout]    |                                                               ^^ help: if this is intentional, prefix it with an underscore: `_ws`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.81s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint-dig v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "f1013dff74f6c2896bbc542c3831f2d1b4db7fc72cb8859d0bec0fc0192a4395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1013dff74f6c2896bbc542c3831f2d1b4db7fc72cb8859d0bec0fc0192a4395", kill_on_drop: false }`
[INFO] [stdout] f1013dff74f6c2896bbc542c3831f2d1b4db7fc72cb8859d0bec0fc0192a4395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a5ca20af7496e497d874234d2d7c4d723fe73988e9e6bee3e0888fe47182d53
[INFO] running `Command { std: "docker" "start" "-a" "4a5ca20af7496e497d874234d2d7c4d723fe73988e9e6bee3e0888fe47182d53", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `const_collections_with_hasher` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> teach-tech-core/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_collections_with_hasher)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling teach-tech v0.1.0 (/opt/rustwide/workdir/teach-tech)
[INFO] [stderr]    Compiling teach-tech-core v0.1.0 (/opt/rustwide/workdir/teach-tech-core)
[INFO] [stdout] warning: the feature `build_hasher_default_const_new` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> teach-tech-core/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(build_hasher_default_const_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ws`
[INFO] [stdout]   --> integrations/quick-chat/src/lib.rs:22:63
[INFO] [stdout]    |
[INFO] [stdout] 22 |             get(|ws: WebSocketUpgrade| async { ws.on_upgrade(|ws| async move {}) }),
[INFO] [stdout]    |                                                               ^^ help: if this is intentional, prefix it with an underscore: `_ws`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quick-chat v0.1.0 (/opt/rustwide/workdir/integrations/quick-chat)
[INFO] [stdout] warning: unused variable: `ws`
[INFO] [stdout]   --> integrations/quick-chat/src/lib.rs:22:63
[INFO] [stdout]    |
[INFO] [stdout] 22 |             get(|ws: WebSocketUpgrade| async { ws.on_upgrade(|ws| async move {}) }),
[INFO] [stdout]    |                                                               ^^ help: if this is intentional, prefix it with an underscore: `_ws`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_collections_with_hasher` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> teach-tech-core/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_collections_with_hasher)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `build_hasher_default_const_new` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> teach-tech-core/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(build_hasher_default_const_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.35s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint-dig v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "4a5ca20af7496e497d874234d2d7c4d723fe73988e9e6bee3e0888fe47182d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5ca20af7496e497d874234d2d7c4d723fe73988e9e6bee3e0888fe47182d53", kill_on_drop: false }`
[INFO] [stdout] 4a5ca20af7496e497d874234d2d7c4d723fe73988e9e6bee3e0888fe47182d53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7cae3d800d7f62c7790374622a26864242f59b6b94a1f3d9be23c7716b5aa66
[INFO] running `Command { std: "docker" "start" "-a" "f7cae3d800d7f62c7790374622a26864242f59b6b94a1f3d9be23c7716b5aa66", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `const_collections_with_hasher` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> teach-tech-core/src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(const_collections_with_hasher)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `build_hasher_default_const_new` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> teach-tech-core/src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(build_hasher_default_const_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `teach-tech-core` (lib) generated 2 warnings
[INFO] [stderr] warning: `teach-tech-core` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: unused variable: `ws`
[INFO] [stderr]   --> integrations/quick-chat/src/lib.rs:22:63
[INFO] [stderr]    |
[INFO] [stderr] 22 |             get(|ws: WebSocketUpgrade| async { ws.on_upgrade(|ws| async move {}) }),
[INFO] [stderr]    |                                                               ^^ help: if this is intentional, prefix it with an underscore: `_ws`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `quick-chat` (lib) generated 1 warning (run `cargo fix --lib -p quick-chat` to apply 1 suggestion)
[INFO] [stderr] warning: `quick-chat` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint-dig v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/quick_chat-96fc31f1910a4386)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/teach_tech-5d4add9abbea01c9)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/teach_tech-1f7469e5e21661b0)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/teach_tech_core-475e673c655dbca9)
[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 quick_chat
[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 teach_tech
[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 teach_tech_core
[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" "f7cae3d800d7f62c7790374622a26864242f59b6b94a1f3d9be23c7716b5aa66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7cae3d800d7f62c7790374622a26864242f59b6b94a1f3d9be23c7716b5aa66", kill_on_drop: false }`
[INFO] [stdout] f7cae3d800d7f62c7790374622a26864242f59b6b94a1f3d9be23c7716b5aa66