[INFO] fetching crate computergeneration 0.2.0...
[INFO] testing computergeneration-0.2.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate computergeneration 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate computergeneration 0.2.0
[INFO] finished tweaking crates.io crate computergeneration 0.2.0
[INFO] tweaked toml for crates.io crate computergeneration 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate computergeneration 0.2.0 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 computergeneration 0.2.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f70448c7ef9122a190858558ad05846e77faec755a054cc38d2452996690f185
[INFO] running `Command { std: "docker" "start" "-a" "f70448c7ef9122a190858558ad05846e77faec755a054cc38d2452996690f185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f70448c7ef9122a190858558ad05846e77faec755a054cc38d2452996690f185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70448c7ef9122a190858558ad05846e77faec755a054cc38d2452996690f185", kill_on_drop: false }`
[INFO] [stdout] f70448c7ef9122a190858558ad05846e77faec755a054cc38d2452996690f185
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b9bfb7dc03a73d0739bca35b26d20b9c3a8dfca7485ac975a50e2d85e2396c54
[INFO] running `Command { std: "docker" "start" "-a" "b9bfb7dc03a73d0739bca35b26d20b9c3a8dfca7485ac975a50e2d85e2396c54", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling computergeneration v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.42s
[INFO] running `Command { std: "docker" "inspect" "b9bfb7dc03a73d0739bca35b26d20b9c3a8dfca7485ac975a50e2d85e2396c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bfb7dc03a73d0739bca35b26d20b9c3a8dfca7485ac975a50e2d85e2396c54", kill_on_drop: false }`
[INFO] [stdout] b9bfb7dc03a73d0739bca35b26d20b9c3a8dfca7485ac975a50e2d85e2396c54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2f5743bef792434fdd81e3df88854ecfce89c1ad887367f65d795591a0831fac
[INFO] running `Command { std: "docker" "start" "-a" "2f5743bef792434fdd81e3df88854ecfce89c1ad887367f65d795591a0831fac", kill_on_drop: false }`
[INFO] [stderr]    Compiling computergeneration v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/completion.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         drop(child_stdin);
[INFO] [stdout]    |         ^^^^^-----------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut ChildStdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 25 -         drop(child_stdin);
[INFO] [stdout] 25 +         let _ = child_stdin;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "2f5743bef792434fdd81e3df88854ecfce89c1ad887367f65d795591a0831fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f5743bef792434fdd81e3df88854ecfce89c1ad887367f65d795591a0831fac", kill_on_drop: false }`
[INFO] [stdout] 2f5743bef792434fdd81e3df88854ecfce89c1ad887367f65d795591a0831fac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 084f140b9a2bca27a43205bc6685cc98cc9c553e39c6d0fdaaf290ce043ee157
[INFO] running `Command { std: "docker" "start" "-a" "084f140b9a2bca27a43205bc6685cc98cc9c553e39c6d0fdaaf290ce043ee157", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> tests/completion.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         drop(child_stdin);
[INFO] [stderr]    |         ^^^^^-----------^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              argument has type `&mut ChildStdin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 25 -         drop(child_stdin);
[INFO] [stderr] 25 +         let _ = child_stdin;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `computergeneration` (test "completion") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/computergeneration-1b114f157213c1e4)
[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 tests/completion.rs (/opt/rustwide/target/debug/deps/completion-099df3095e539390)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test issue_1 ... ok
[INFO] [stdout] test basic_examples ... ok
[INFO] [stdout] test case_sensitivity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "084f140b9a2bca27a43205bc6685cc98cc9c553e39c6d0fdaaf290ce043ee157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "084f140b9a2bca27a43205bc6685cc98cc9c553e39c6d0fdaaf290ce043ee157", kill_on_drop: false }`
[INFO] [stdout] 084f140b9a2bca27a43205bc6685cc98cc9c553e39c6d0fdaaf290ce043ee157