[INFO] fetching crate mers_lib 0.9.29...
[INFO] testing mers_lib-0.9.29 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate mers_lib 0.9.29 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mers_lib 0.9.29
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mers_lib 0.9.29
[INFO] tweaked toml for crates.io crate mers_lib 0.9.29 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mers_lib 0.9.29 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mers_lib 0.9.29 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-width v0.1.7
[INFO] [stderr]   Downloaded line-span v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e04094394e8d6780143b6b9cfdc5729c967b9a7493dcf6e97ad26c33031a4c7
[INFO] running `Command { std: "docker" "start" "-a" "5e04094394e8d6780143b6b9cfdc5729c967b9a7493dcf6e97ad26c33031a4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e04094394e8d6780143b6b9cfdc5729c967b9a7493dcf6e97ad26c33031a4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e04094394e8d6780143b6b9cfdc5729c967b9a7493dcf6e97ad26c33031a4c7", kill_on_drop: false }`
[INFO] [stdout] 5e04094394e8d6780143b6b9cfdc5729c967b9a7493dcf6e97ad26c33031a4c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 938909354ccac44887d8aa8eb1aa5a9d90f3becf6b74f1e5cf6105eb54e22956
[INFO] running `Command { std: "docker" "start" "-a" "938909354ccac44887d8aa8eb1aa5a9d90f3becf6b74f1e5cf6105eb54e22956", kill_on_drop: false }`
[INFO] [stderr]    Compiling line-span v0.1.5
[INFO] [stderr]    Compiling mers_lib v0.9.29 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `comp` is never read
[INFO] [stdout]   --> src/program/parsed/init_to.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         comp.is_init = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "938909354ccac44887d8aa8eb1aa5a9d90f3becf6b74f1e5cf6105eb54e22956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "938909354ccac44887d8aa8eb1aa5a9d90f3becf6b74f1e5cf6105eb54e22956", kill_on_drop: false }`
[INFO] [stdout] 938909354ccac44887d8aa8eb1aa5a9d90f3becf6b74f1e5cf6105eb54e22956
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15af54bb3cd1c6f01daea6e7b2a3b58dd04c542c3c8f819950f3217c296059c2
[INFO] running `Command { std: "docker" "start" "-a" "15af54bb3cd1c6f01daea6e7b2a3b58dd04c542c3c8f819950f3217c296059c2", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `comp` is never read
[INFO] [stdout]   --> src/program/parsed/init_to.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         comp.is_init = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mers_lib v0.9.29 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `comp` is never read
[INFO] [stdout]   --> src/program/parsed/init_to.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         comp.is_init = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "15af54bb3cd1c6f01daea6e7b2a3b58dd04c542c3c8f819950f3217c296059c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15af54bb3cd1c6f01daea6e7b2a3b58dd04c542c3c8f819950f3217c296059c2", kill_on_drop: false }`
[INFO] [stdout] 15af54bb3cd1c6f01daea6e7b2a3b58dd04c542c3c8f819950f3217c296059c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 20b4a3f86dd943b7f9538bbdca35ac7141d63a52435ab50c88265f8b4c4dfcf2
[INFO] running `Command { std: "docker" "start" "-a" "20b4a3f86dd943b7f9538bbdca35ac7141d63a52435ab50c88265f8b4c4dfcf2", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `comp` is never read
[INFO] [stderr]   --> src/program/parsed/init_to.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         comp.is_init = false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mers_lib` (lib) generated 1 warning
[INFO] [stderr] warning: `mers_lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mers_lib-507d5f4cc686ca17)
[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/lang.rs (/opt/rustwide/target/debug/deps/lang-24fa802330832476)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test identity_function ... ok
[INFO] [stdout] test mutating_a_variable ... ok
[INFO] [stdout] test variable_shadowing ... ok
[INFO] [stderr]    Doc-tests mers_lib
[INFO] [stdout] test variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[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" "20b4a3f86dd943b7f9538bbdca35ac7141d63a52435ab50c88265f8b4c4dfcf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b4a3f86dd943b7f9538bbdca35ac7141d63a52435ab50c88265f8b4c4dfcf2", kill_on_drop: false }`
[INFO] [stdout] 20b4a3f86dd943b7f9538bbdca35ac7141d63a52435ab50c88265f8b4c4dfcf2
