[INFO] cloning repository https://github.com/ultrasaurus/idiomatic-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ultrasaurus/idiomatic-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultrasaurus%2Fidiomatic-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultrasaurus%2Fidiomatic-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80dbce00c0f624fc4ad75c1848ad99585a62f94e
[INFO] testing ultrasaurus/idiomatic-rust against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultrasaurus%2Fidiomatic-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ultrasaurus/idiomatic-rust
[INFO] finished tweaking git repo https://github.com/ultrasaurus/idiomatic-rust
[INFO] tweaked toml for git repo https://github.com/ultrasaurus/idiomatic-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ultrasaurus/idiomatic-rust on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ultrasaurus/idiomatic-rust 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bedf3338571a11d2fc01283905095614265b7c7d1616dd0bdc209bc81a2a1d0d
[INFO] running `Command { std: "docker" "start" "-a" "bedf3338571a11d2fc01283905095614265b7c7d1616dd0bdc209bc81a2a1d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bedf3338571a11d2fc01283905095614265b7c7d1616dd0bdc209bc81a2a1d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bedf3338571a11d2fc01283905095614265b7c7d1616dd0bdc209bc81a2a1d0d", kill_on_drop: false }`
[INFO] [stdout] bedf3338571a11d2fc01283905095614265b7c7d1616dd0bdc209bc81a2a1d0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ce91b4aaaaf6ad9dddb922e6ce26afc257fb56f1b77e052516806388b0a8169
[INFO] running `Command { std: "docker" "start" "-a" "4ce91b4aaaaf6ad9dddb922e6ce26afc257fb56f1b77e052516806388b0a8169", kill_on_drop: false }`
[INFO] [stderr]    Compiling idiomatic-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "4ce91b4aaaaf6ad9dddb922e6ce26afc257fb56f1b77e052516806388b0a8169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ce91b4aaaaf6ad9dddb922e6ce26afc257fb56f1b77e052516806388b0a8169", kill_on_drop: false }`
[INFO] [stdout] 4ce91b4aaaaf6ad9dddb922e6ce26afc257fb56f1b77e052516806388b0a8169
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e43184745beda18b3a6cb11bd6e4a95222c271a81afbec469582d019f55bbd3
[INFO] running `Command { std: "docker" "start" "-a" "9e43184745beda18b3a6cb11bd6e4a95222c271a81afbec469582d019f55bbd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling idiomatic-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `float_to_from_bytes` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/into.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(float_to_from_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t` and `bytes` are never read
[INFO] [stdout]   --> examples/into.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Value {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 16 |     t: TypeMarker,
[INFO] [stdout]    |     ^
[INFO] [stdout] 17 |     bytes: [u8; 8]
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "9e43184745beda18b3a6cb11bd6e4a95222c271a81afbec469582d019f55bbd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e43184745beda18b3a6cb11bd6e4a95222c271a81afbec469582d019f55bbd3", kill_on_drop: false }`
[INFO] [stdout] 9e43184745beda18b3a6cb11bd6e4a95222c271a81afbec469582d019f55bbd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae87d0afc69856dd25d9fb5ae0adccaeaae804b5fb9cc8d0bee9363ac87e3a3a
[INFO] running `Command { std: "docker" "start" "-a" "ae87d0afc69856dd25d9fb5ae0adccaeaae804b5fb9cc8d0bee9363ac87e3a3a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: the feature `float_to_from_bytes` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stderr]  --> examples/into.rs:5:12
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 5 | #![feature(float_to_from_bytes)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `t` and `bytes` are never read
[INFO] [stderr]   --> examples/into.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct Value {
[INFO] [stderr]    |        ----- fields in this struct
[INFO] [stderr] 16 |     t: TypeMarker,
[INFO] [stderr]    |     ^
[INFO] [stderr] 17 |     bytes: [u8; 8]
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `idiomatic-rust` (example "into") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/idiomatic_rust-afd82e6c0eff401e)
[INFO] running `Command { std: "docker" "inspect" "ae87d0afc69856dd25d9fb5ae0adccaeaae804b5fb9cc8d0bee9363ac87e3a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae87d0afc69856dd25d9fb5ae0adccaeaae804b5fb9cc8d0bee9363ac87e3a3a", kill_on_drop: false }`
[INFO] [stdout] ae87d0afc69856dd25d9fb5ae0adccaeaae804b5fb9cc8d0bee9363ac87e3a3a