[INFO] fetching crate rational_deduction 0.0.5...
[INFO] testing rational_deduction-0.0.5 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate rational_deduction 0.0.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rational_deduction 0.0.5 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rational_deduction 0.0.5
[INFO] finished tweaking crates.io crate rational_deduction 0.0.5
[INFO] tweaked toml for crates.io crate rational_deduction 0.0.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55033a69403daa01f59d3a0ecc35a6a19cf9ea77201eafb894aa717ffe643214
[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" "55033a69403daa01f59d3a0ecc35a6a19cf9ea77201eafb894aa717ffe643214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55033a69403daa01f59d3a0ecc35a6a19cf9ea77201eafb894aa717ffe643214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55033a69403daa01f59d3a0ecc35a6a19cf9ea77201eafb894aa717ffe643214", kill_on_drop: false }`
[INFO] [stdout] 55033a69403daa01f59d3a0ecc35a6a19cf9ea77201eafb894aa717ffe643214
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55049e469e027d3d83e6dac9678495651cfadba8e799646f51504e5ccd2ce00a
[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" "55049e469e027d3d83e6dac9678495651cfadba8e799646f51504e5ccd2ce00a", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling funty v1.2.0
[INFO] [stderr]    Compiling exprz v0.0.12
[INFO] [stdout] error: Missing required bounds on Iter
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/exprz-0.0.12/src/lib.rs:1618:9
[INFO] [stdout]      |
[INFO] [stdout] 1618 | /         type Iter<'t>: Iterator<Item = Self::Item<'t>>
[INFO] [stdout] 1619 | |         where
[INFO] [stdout] 1620 | |             T: 't;
[INFO] [stdout]      | |                  ^ help: add the required where clauses: `, Self: 't`
[INFO] [stdout]      | |__________________|
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Missing required bounds on IterGen
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/exprz-0.0.12/src/lib.rs:1629:9
[INFO] [stdout]      |
[INFO] [stdout] 1629 | /         type IterGen<'t>: IteratorGen<T>
[INFO] [stdout] 1630 | |         where
[INFO] [stdout] 1631 | |             T: 't;
[INFO] [stdout]      | |                  ^ help: add the required where clauses: `, Self: 't`
[INFO] [stdout]      | |__________________|
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exprz` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "55049e469e027d3d83e6dac9678495651cfadba8e799646f51504e5ccd2ce00a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55049e469e027d3d83e6dac9678495651cfadba8e799646f51504e5ccd2ce00a", kill_on_drop: false }`
[INFO] [stdout] 55049e469e027d3d83e6dac9678495651cfadba8e799646f51504e5ccd2ce00a