[INFO] fetching crate guohongxie_minigrep 0.1.0...
[INFO] testing guohongxie_minigrep-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate guohongxie_minigrep 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate guohongxie_minigrep 0.1.0
[INFO] finished tweaking crates.io crate guohongxie_minigrep 0.1.0
[INFO] tweaked toml for crates.io crate guohongxie_minigrep 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate guohongxie_minigrep 0.1.0 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 guohongxie_minigrep 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0679ae9c6ab1f171eaea11144c99c0e5d3cb08f85b053ce1259c1dc5e89efe4c
[INFO] running `Command { std: "docker" "start" "-a" "0679ae9c6ab1f171eaea11144c99c0e5d3cb08f85b053ce1259c1dc5e89efe4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0679ae9c6ab1f171eaea11144c99c0e5d3cb08f85b053ce1259c1dc5e89efe4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0679ae9c6ab1f171eaea11144c99c0e5d3cb08f85b053ce1259c1dc5e89efe4c", kill_on_drop: false }`
[INFO] [stdout] 0679ae9c6ab1f171eaea11144c99c0e5d3cb08f85b053ce1259c1dc5e89efe4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d098e3cc821c119a83119bd304e2b8efaaead0182c9e8f4ea2cb873be5815cdc
[INFO] running `Command { std: "docker" "start" "-a" "d098e3cc821c119a83119bd304e2b8efaaead0182c9e8f4ea2cb873be5815cdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling guohongxie_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `query_result` is never read
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut query_result = Vec::new();
[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 1.05s
[INFO] running `Command { std: "docker" "inspect" "d098e3cc821c119a83119bd304e2b8efaaead0182c9e8f4ea2cb873be5815cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d098e3cc821c119a83119bd304e2b8efaaead0182c9e8f4ea2cb873be5815cdc", kill_on_drop: false }`
[INFO] [stdout] d098e3cc821c119a83119bd304e2b8efaaead0182c9e8f4ea2cb873be5815cdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2a4683cd0b200ac20eb485160cd2f4f612518b34fdb7452486dc13d08d53d6a7
[INFO] running `Command { std: "docker" "start" "-a" "2a4683cd0b200ac20eb485160cd2f4f612518b34fdb7452486dc13d08d53d6a7", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `query_result` is never read
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut query_result = Vec::new();
[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 guohongxie_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `query_result` is never read
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut query_result = Vec::new();
[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 0.53s
[INFO] running `Command { std: "docker" "inspect" "2a4683cd0b200ac20eb485160cd2f4f612518b34fdb7452486dc13d08d53d6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4683cd0b200ac20eb485160cd2f4f612518b34fdb7452486dc13d08d53d6a7", kill_on_drop: false }`
[INFO] [stdout] 2a4683cd0b200ac20eb485160cd2f4f612518b34fdb7452486dc13d08d53d6a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 35b9938f9759dd5e43514b2da03ea067b779b7c8d1e2a3a54561caeee8401f5b
[INFO] running `Command { std: "docker" "start" "-a" "35b9938f9759dd5e43514b2da03ea067b779b7c8d1e2a3a54561caeee8401f5b", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `query_result` is never read
[INFO] [stderr]   --> src/lib.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut query_result = Vec::new();
[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: `guohongxie_minigrep` (lib) generated 1 warning
[INFO] [stderr] warning: `guohongxie_minigrep` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/guohongxie_minigrep-f0598560c45ae649)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guohongxie_minigrep-dc73ad9019b68285)
[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] [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] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-055e4af821b40356)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test search_test ... ok
[INFO] [stdout] test search_test2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests guohongxie_minigrep
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - add_one (line 65) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "35b9938f9759dd5e43514b2da03ea067b779b7c8d1e2a3a54561caeee8401f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b9938f9759dd5e43514b2da03ea067b779b7c8d1e2a3a54561caeee8401f5b", kill_on_drop: false }`
[INFO] [stdout] 35b9938f9759dd5e43514b2da03ea067b779b7c8d1e2a3a54561caeee8401f5b