[INFO] cloning repository https://github.com/UnHumbleBen/rust-iterators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UnHumbleBen/rust-iterators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Frust-iterators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Frust-iterators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cf3a23bd75c89aa207dcfad058f12cdf89fac29
[INFO] testing UnHumbleBen/rust-iterators against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Frust-iterators" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UnHumbleBen/rust-iterators on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/UnHumbleBen/rust-iterators
[INFO] finished tweaking git repo https://github.com/UnHumbleBen/rust-iterators
[INFO] tweaked toml for git repo https://github.com/UnHumbleBen/rust-iterators written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/UnHumbleBen/rust-iterators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", 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] e61efb0995d6c52574f3a478e22e2b8c289addba5b07ce90b9a8732a519aff6d
[INFO] running `Command { std: "docker" "start" "-a" "e61efb0995d6c52574f3a478e22e2b8c289addba5b07ce90b9a8732a519aff6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e61efb0995d6c52574f3a478e22e2b8c289addba5b07ce90b9a8732a519aff6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61efb0995d6c52574f3a478e22e2b8c289addba5b07ce90b9a8732a519aff6d", kill_on_drop: false }`
[INFO] [stdout] e61efb0995d6c52574f3a478e22e2b8c289addba5b07ce90b9a8732a519aff6d
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b927b07a7c5e43166f46b8c98006d941fbb8d4af24af8899304a3c2bad0f2804
[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" "b927b07a7c5e43166f46b8c98006d941fbb8d4af24af8899304a3c2bad0f2804", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `shoes_in_my_size`
[INFO] [stdout]   --> src/lib.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn shoes_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn new() -> Counter {
[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 1.03s
[INFO] running `Command { std: "docker" "inspect" "b927b07a7c5e43166f46b8c98006d941fbb8d4af24af8899304a3c2bad0f2804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b927b07a7c5e43166f46b8c98006d941fbb8d4af24af8899304a3c2bad0f2804", kill_on_drop: false }`
[INFO] [stdout] b927b07a7c5e43166f46b8c98006d941fbb8d4af24af8899304a3c2bad0f2804
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ce27f4aa045cb0ca5849546c805e2bdc76bf0d5164308ff52b2f46db6a3793
[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" "69ce27f4aa045cb0ca5849546c805e2bdc76bf0d5164308ff52b2f46db6a3793", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `shoes_in_my_size`
[INFO] [stdout]   --> src/lib.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn shoes_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn new() -> Counter {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "69ce27f4aa045cb0ca5849546c805e2bdc76bf0d5164308ff52b2f46db6a3793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ce27f4aa045cb0ca5849546c805e2bdc76bf0d5164308ff52b2f46db6a3793", kill_on_drop: false }`
[INFO] [stdout] 69ce27f4aa045cb0ca5849546c805e2bdc76bf0d5164308ff52b2f46db6a3793
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 451102f8a466f59b6f952c6f7bcc2dd2fcbda787d0bd04e7f84c23525fd98bca
[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" "451102f8a466f59b6f952c6f7bcc2dd2fcbda787d0bd04e7f84c23525fd98bca", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `shoes_in_my_size`
[INFO] [stdout] running 5 tests
[INFO] [stderr]   --> src/lib.rs:26:4
[INFO] [stdout] test filters_by_size ... ok
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn shoes_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/lib.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new() -> Counter {
[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/iterator-e717e4b6fbf5b9d2
[INFO] [stdout] test iterator_sum ... ok
[INFO] [stdout] test calling_next_directly ... ok
[INFO] [stdout] test using_other_iterator_trait_methods ... ok
[INFO] [stdout] test iterator_demonstration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iterator-e4981fdde0e455d7
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterator
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "451102f8a466f59b6f952c6f7bcc2dd2fcbda787d0bd04e7f84c23525fd98bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451102f8a466f59b6f952c6f7bcc2dd2fcbda787d0bd04e7f84c23525fd98bca", kill_on_drop: false }`
[INFO] [stdout] 451102f8a466f59b6f952c6f7bcc2dd2fcbda787d0bd04e7f84c23525fd98bca