[INFO] fetching crate mathper 0.1.2...
[INFO] testing mathper-0.1.2 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate mathper 0.1.2 into /workspace/builds/worker-110/source
[INFO] validating manifest of crates.io crate mathper 0.1.2 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathper 0.1.2
[INFO] finished tweaking crates.io crate mathper 0.1.2
[INFO] tweaked toml for crates.io crate mathper 0.1.2 written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d112d7b980b5a43646a9faf623abc0b6d64ed39091dae97a58cd7a3c7bf88a37
[INFO] running `Command { std: "docker" "start" "-a" "d112d7b980b5a43646a9faf623abc0b6d64ed39091dae97a58cd7a3c7bf88a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d112d7b980b5a43646a9faf623abc0b6d64ed39091dae97a58cd7a3c7bf88a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d112d7b980b5a43646a9faf623abc0b6d64ed39091dae97a58cd7a3c7bf88a37", kill_on_drop: false }`
[INFO] [stdout] d112d7b980b5a43646a9faf623abc0b6d64ed39091dae97a58cd7a3c7bf88a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04d6d23f9aaac41c2ab0a160751c2e1cd2130e8651f5f08ff398ece1cb45c4fe
[INFO] running `Command { std: "docker" "start" "-a" "04d6d23f9aaac41c2ab0a160751c2e1cd2130e8651f5f08ff398ece1cb45c4fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathper v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `sub`
[INFO] [stdout]   --> src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "04d6d23f9aaac41c2ab0a160751c2e1cd2130e8651f5f08ff398ece1cb45c4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d6d23f9aaac41c2ab0a160751c2e1cd2130e8651f5f08ff398ece1cb45c4fe", kill_on_drop: false }`
[INFO] [stdout] 04d6d23f9aaac41c2ab0a160751c2e1cd2130e8651f5f08ff398ece1cb45c4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94f43e5086fe6c7f05188113dd11a174aac57e9f5b12f8639085ec5e9531cde0
[INFO] running `Command { std: "docker" "start" "-a" "94f43e5086fe6c7f05188113dd11a174aac57e9f5b12f8639085ec5e9531cde0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathper v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `sub`
[INFO] [stdout]   --> src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub`
[INFO] [stdout]   --> src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "94f43e5086fe6c7f05188113dd11a174aac57e9f5b12f8639085ec5e9531cde0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f43e5086fe6c7f05188113dd11a174aac57e9f5b12f8639085ec5e9531cde0", kill_on_drop: false }`
[INFO] [stdout] 94f43e5086fe6c7f05188113dd11a174aac57e9f5b12f8639085ec5e9531cde0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06d38df492383d3f43edd5144c879b6464aab73a27339def03e2e804e59f9938
[INFO] running `Command { std: "docker" "start" "-a" "06d38df492383d3f43edd5144c879b6464aab73a27339def03e2e804e59f9938", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `sub`
[INFO] [stderr]   --> src/lib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mathper` (lib) generated 1 warning
[INFO] [stderr] warning: `mathper` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mathper-aee29c6334ac9bfb)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mathper-3ef3e3bf096735bc)
[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] [stdout] 
[INFO] [stderr]    Doc-tests mathper
[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] [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" "06d38df492383d3f43edd5144c879b6464aab73a27339def03e2e804e59f9938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d38df492383d3f43edd5144c879b6464aab73a27339def03e2e804e59f9938", kill_on_drop: false }`
[INFO] [stdout] 06d38df492383d3f43edd5144c879b6464aab73a27339def03e2e804e59f9938