[INFO] fetching crate cpp_streams 0.1.0...
[INFO] testing cpp_streams-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate cpp_streams 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate cpp_streams 0.1.0
[INFO] finished tweaking crates.io crate cpp_streams 0.1.0
[INFO] tweaked toml for crates.io crate cpp_streams 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cpp_streams 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cpp_streams 0.1.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ba4913461d0e3e5a31b9f55ff4490e7864161304483b83c1da7d4503d541014
[INFO] running `Command { std: "docker" "start" "-a" "3ba4913461d0e3e5a31b9f55ff4490e7864161304483b83c1da7d4503d541014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ba4913461d0e3e5a31b9f55ff4490e7864161304483b83c1da7d4503d541014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba4913461d0e3e5a31b9f55ff4490e7864161304483b83c1da7d4503d541014", kill_on_drop: false }`
[INFO] [stdout] 3ba4913461d0e3e5a31b9f55ff4490e7864161304483b83c1da7d4503d541014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f89ec14e58d76bcc12174055aac843dfc3dc99fbee12e439cba853ea8b2b83cf
[INFO] running `Command { std: "docker" "start" "-a" "f89ec14e58d76bcc12174055aac843dfc3dc99fbee12e439cba853ea8b2b83cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpp_streams v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Shl, ops::Shr, fmt::Display, io::{self, Read}};
[INFO] [stdout]   |                                                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "f89ec14e58d76bcc12174055aac843dfc3dc99fbee12e439cba853ea8b2b83cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89ec14e58d76bcc12174055aac843dfc3dc99fbee12e439cba853ea8b2b83cf", kill_on_drop: false }`
[INFO] [stdout] f89ec14e58d76bcc12174055aac843dfc3dc99fbee12e439cba853ea8b2b83cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d66e6a093a2d0fedbe4061d640a38ba125e7565738f68b4de9bafcabb4de4a37
[INFO] running `Command { std: "docker" "start" "-a" "d66e6a093a2d0fedbe4061d640a38ba125e7565738f68b4de9bafcabb4de4a37", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpp_streams v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Shl, ops::Shr, fmt::Display, io::{self, Read}};
[INFO] [stdout]   |                                                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]  --> examples/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     cin >> &mut input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let _ = cin >> &mut input;
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]  --> examples/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     cout << "Hello, world!\n" << "Other string\n" << input << "\n" << 1 << 1.0 << endl;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stdout]   |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = cout << "Hello, world!\n" << "Other string\n" << input << "\n" << 1 << 1.0 << endl;
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Shl, ops::Shr, fmt::Display, io::{self, Read}};
[INFO] [stdout]   |                                                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "d66e6a093a2d0fedbe4061d640a38ba125e7565738f68b4de9bafcabb4de4a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66e6a093a2d0fedbe4061d640a38ba125e7565738f68b4de9bafcabb4de4a37", kill_on_drop: false }`
[INFO] [stdout] d66e6a093a2d0fedbe4061d640a38ba125e7565738f68b4de9bafcabb4de4a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 797bb8f0138551dcfd7bd5d580bb8825058a1e6b5f3691d1ecfd3ebac16a4732
[INFO] running `Command { std: "docker" "start" "-a" "797bb8f0138551dcfd7bd5d580bb8825058a1e6b5f3691d1ecfd3ebac16a4732", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/lib.rs:1:56
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{ops::Shl, ops::Shr, fmt::Display, io::{self, Read}};
[INFO] [stderr]   |                                                        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cpp_streams` (lib) generated 1 warning (run `cargo fix --lib -p cpp_streams` to apply 1 suggestion)
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]  --> examples/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     cin >> &mut input;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let _ = cin >> &mut input;
[INFO] [stderr]   |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]  --> examples/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     cout << "Hello, world!\n" << "Other string\n" << input << "\n" << 1 << 1.0 << endl;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stderr]   |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let _ = cout << "Hello, world!\n" << "Other string\n" << input << "\n" << 1 << 1.0 << endl;
[INFO] [stderr]   |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `cpp_streams` (example "main") generated 2 warnings
[INFO] [stderr] warning: `cpp_streams` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cpp_streams-4f12f31700635af7)
[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 cpp_streams
[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" "797bb8f0138551dcfd7bd5d580bb8825058a1e6b5f3691d1ecfd3ebac16a4732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797bb8f0138551dcfd7bd5d580bb8825058a1e6b5f3691d1ecfd3ebac16a4732", kill_on_drop: false }`
[INFO] [stdout] 797bb8f0138551dcfd7bd5d580bb8825058a1e6b5f3691d1ecfd3ebac16a4732