[INFO] fetching crate hunter_mygrep 0.1.0...
[INFO] testing hunter_mygrep-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate hunter_mygrep 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate hunter_mygrep 0.1.0
[INFO] finished tweaking crates.io crate hunter_mygrep 0.1.0
[INFO] tweaked toml for crates.io crate hunter_mygrep 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hunter_mygrep 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hunter_mygrep 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7851d108843efe8dc93a92d82544507f1d9104d8b1d11955b2263b7f053c23ce
[INFO] running `Command { std: "docker" "start" "-a" "7851d108843efe8dc93a92d82544507f1d9104d8b1d11955b2263b7f053c23ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7851d108843efe8dc93a92d82544507f1d9104d8b1d11955b2263b7f053c23ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7851d108843efe8dc93a92d82544507f1d9104d8b1d11955b2263b7f053c23ce", kill_on_drop: false }`
[INFO] [stdout] 7851d108843efe8dc93a92d82544507f1d9104d8b1d11955b2263b7f053c23ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 022205de40e33a5a9673d636b0db1405b0da2bbd0feda4f3cd6577bf8d190368
[INFO] running `Command { std: "docker" "start" "-a" "022205de40e33a5a9673d636b0db1405b0da2bbd0feda4f3cd6577bf8d190368", kill_on_drop: false }`
[INFO] [stderr]    Compiling hunter_mygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env::args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `result`
[INFO] [stdout]  --> src/lib.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{env, fs, result};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "022205de40e33a5a9673d636b0db1405b0da2bbd0feda4f3cd6577bf8d190368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022205de40e33a5a9673d636b0db1405b0da2bbd0feda4f3cd6577bf8d190368", kill_on_drop: false }`
[INFO] [stdout] 022205de40e33a5a9673d636b0db1405b0da2bbd0feda4f3cd6577bf8d190368
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bff8004f9ca15864534d6d7b4adab26585bc5942694dc835f3228203a1d5330e
[INFO] running `Command { std: "docker" "start" "-a" "bff8004f9ca15864534d6d7b4adab26585bc5942694dc835f3228203a1d5330e", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env::args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hunter_mygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `result`
[INFO] [stdout]  --> src/lib.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{env, fs, result};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env::args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `result`
[INFO] [stdout]  --> src/lib.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{env, fs, result};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "bff8004f9ca15864534d6d7b4adab26585bc5942694dc835f3228203a1d5330e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff8004f9ca15864534d6d7b4adab26585bc5942694dc835f3228203a1d5330e", kill_on_drop: false }`
[INFO] [stdout] bff8004f9ca15864534d6d7b4adab26585bc5942694dc835f3228203a1d5330e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3303ec2afa1c71ae48f7323b24c0215328be097590d6d0c883c1ccb7c2a67f4
[INFO] running `Command { std: "docker" "start" "-a" "e3303ec2afa1c71ae48f7323b24c0215328be097590d6d0c883c1ccb7c2a67f4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::env::args`
[INFO] [stdout] 
[INFO] [stderr]  --> src/lib.rs:6:5
[INFO] [stdout] running 1 test
[INFO] [stderr]   |
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stderr] 6 | use std::env::args;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `result`
[INFO] [stderr]  --> src/lib.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::{env, fs, result};
[INFO] [stderr]   |                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hunter_mygrep` (lib) generated 2 warnings (run `cargo fix --lib -p hunter_mygrep` to apply 2 suggestions)
[INFO] [stderr] warning: `hunter_mygrep` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hunter_mygrep-7bb6d800b04272d4)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hunter_mygrep-f513cd420166a536)
[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]    Doc-tests hunter_mygrep
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - search (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e3303ec2afa1c71ae48f7323b24c0215328be097590d6d0c883c1ccb7c2a67f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3303ec2afa1c71ae48f7323b24c0215328be097590d6d0c883c1ccb7c2a67f4", kill_on_drop: false }`
[INFO] [stdout] e3303ec2afa1c71ae48f7323b24c0215328be097590d6d0c883c1ccb7c2a67f4