[INFO] fetching crate computergeneration 0.2.0...
[INFO] testing computergeneration-0.2.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate computergeneration 0.2.0 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate computergeneration 0.2.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa7f109268a8003332d1062e92eb188aa6bd15b7d019b6df885c6eb54fe554c9
[INFO] running `Command { std: "docker" "start" "-a" "aa7f109268a8003332d1062e92eb188aa6bd15b7d019b6df885c6eb54fe554c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa7f109268a8003332d1062e92eb188aa6bd15b7d019b6df885c6eb54fe554c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7f109268a8003332d1062e92eb188aa6bd15b7d019b6df885c6eb54fe554c9", kill_on_drop: false }`
[INFO] [stdout] aa7f109268a8003332d1062e92eb188aa6bd15b7d019b6df885c6eb54fe554c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb8c216b0e9da29498155b5a4c44b5158694ee44ca48c9eb466063ddcb316254
[INFO] running `Command { std: "docker" "start" "-a" "fb8c216b0e9da29498155b5a4c44b5158694ee44ca48c9eb466063ddcb316254", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[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 14.42s
[INFO] running `Command { std: "docker" "inspect" "fb8c216b0e9da29498155b5a4c44b5158694ee44ca48c9eb466063ddcb316254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8c216b0e9da29498155b5a4c44b5158694ee44ca48c9eb466063ddcb316254", kill_on_drop: false }`
[INFO] [stdout] fb8c216b0e9da29498155b5a4c44b5158694ee44ca48c9eb466063ddcb316254
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d17a8b92405c56d0da19f1d1376bd79a9aabccebcf87a0c2789d446574cf34da
[INFO] running `Command { std: "docker" "start" "-a" "d17a8b92405c56d0da19f1d1376bd79a9aabccebcf87a0c2789d446574cf34da", 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 0.83s
[INFO] running `Command { std: "docker" "inspect" "d17a8b92405c56d0da19f1d1376bd79a9aabccebcf87a0c2789d446574cf34da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d17a8b92405c56d0da19f1d1376bd79a9aabccebcf87a0c2789d446574cf34da", kill_on_drop: false }`
[INFO] [stdout] d17a8b92405c56d0da19f1d1376bd79a9aabccebcf87a0c2789d446574cf34da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c732157244c6984649aaf9e8f98c32949526fb84386c6260bed20da957480f68
[INFO] running `Command { std: "docker" "start" "-a" "c732157244c6984649aaf9e8f98c32949526fb84386c6260bed20da957480f68", 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 0.05s
[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 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c732157244c6984649aaf9e8f98c32949526fb84386c6260bed20da957480f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c732157244c6984649aaf9e8f98c32949526fb84386c6260bed20da957480f68", kill_on_drop: false }`
[INFO] [stdout] c732157244c6984649aaf9e8f98c32949526fb84386c6260bed20da957480f68