[INFO] fetching crate random_word 0.3.0...
[INFO] testing random_word-0.3.0 against try#ece70b22820429ebf0c6d388c32356a14c58fc2f for pr-107251
[INFO] extracting crate random_word 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate random_word 0.3.0 on toolchain ece70b22820429ebf0c6d388c32356a14c58fc2f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate random_word 0.3.0
[INFO] finished tweaking crates.io crate random_word 0.3.0
[INFO] tweaked toml for crates.io crate random_word 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1847f5928a81aadd6de85df6f92b249062479b1fe22e5c1f5c1ab4742d2f0f1
[INFO] running `Command { std: "docker" "start" "-a" "e1847f5928a81aadd6de85df6f92b249062479b1fe22e5c1f5c1ab4742d2f0f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1847f5928a81aadd6de85df6f92b249062479b1fe22e5c1f5c1ab4742d2f0f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1847f5928a81aadd6de85df6f92b249062479b1fe22e5c1f5c1ab4742d2f0f1", kill_on_drop: false }`
[INFO] [stdout] e1847f5928a81aadd6de85df6f92b249062479b1fe22e5c1f5c1ab4742d2f0f1
[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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 974b7a77563874b64f8ad8e580f7656ea4cf936dad155d18210231ca0437b5c5
[INFO] running `Command { std: "docker" "start" "-a" "974b7a77563874b64f8ad8e580f7656ea4cf936dad155d18210231ca0437b5c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling random_word v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const_err, 
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` 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 7.77s
[INFO] running `Command { std: "docker" "inspect" "974b7a77563874b64f8ad8e580f7656ea4cf936dad155d18210231ca0437b5c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "974b7a77563874b64f8ad8e580f7656ea4cf936dad155d18210231ca0437b5c5", kill_on_drop: false }`
[INFO] [stdout] 974b7a77563874b64f8ad8e580f7656ea4cf936dad155d18210231ca0437b5c5
[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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4532bf46561ee5e82eb493ba39f8af12f163fb34af7afd20a7baef5f00e4cbe7
[INFO] running `Command { std: "docker" "start" "-a" "4532bf46561ee5e82eb493ba39f8af12f163fb34af7afd20a7baef5f00e4cbe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling random_word v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const_err, 
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const_err, 
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` 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 9.26s
[INFO] running `Command { std: "docker" "inspect" "4532bf46561ee5e82eb493ba39f8af12f163fb34af7afd20a7baef5f00e4cbe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4532bf46561ee5e82eb493ba39f8af12f163fb34af7afd20a7baef5f00e4cbe7", kill_on_drop: false }`
[INFO] [stdout] 4532bf46561ee5e82eb493ba39f8af12f163fb34af7afd20a7baef5f00e4cbe7
[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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21df00b3151ad78fba577c2b013acffd8277f0b66c169a4b11618cd947f70b1c
[INFO] running `Command { std: "docker" "start" "-a" "21df00b3151ad78fba577c2b013acffd8277f0b66c169a4b11618cd947f70b1c", kill_on_drop: false }`
[INFO] [stderr] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stderr]   --> src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const_err, 
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `random_word` (lib) generated 1 warning
[INFO] [stderr] warning: `random_word` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/random_word-841b4730033c38c2)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::gen_test ... ok
[INFO] [stdout] test tests::gen_len_starts_with_test ... ok
[INFO] [stdout] test tests::all_starts_with_test ... ok
[INFO] [stdout] test tests::all_test ... ok
[INFO] [stdout] test tests::gen_len_test ... ok
[INFO] [stdout] test tests::all_len_starts_with_test ... ok
[INFO] [stdout] test tests::all_len_test ... ok
[INFO] [stdout] test tests::gen_starts_with_test ... ok
[INFO] [stdout] test tests::all_indexes_from_first_char ... ok
[INFO] [stdout] test tests::select_random_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests random_word
[INFO] [stderr] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const_err, 
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - all_len (line 299) ... ok
[INFO] [stdout] test src/lib.rs - (line 187) ... ok
[INFO] [stdout] test src/lib.rs - gen_len (line 755) ... ok
[INFO] [stdout] test src/lib.rs - all_starts_with (line 249) ... ok
[INFO] [stdout] test src/lib.rs - gen_starts_with (line 227) ... ok
[INFO] [stdout] test src/lib.rs - gen_len_starts_with (line 730) ... ok
[INFO] [stdout] test src/lib.rs - (line 170) ... ok
[INFO] [stdout] test src/lib.rs - all_len_starts_with (line 337) ... ok
[INFO] [stdout] test src/lib.rs - (line 178) ... ok
[INFO] [stdout] test src/lib.rs - gen (line 210) ... ok
[INFO] [stdout] test src/lib.rs - all (line 776) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.97s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "21df00b3151ad78fba577c2b013acffd8277f0b66c169a4b11618cd947f70b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21df00b3151ad78fba577c2b013acffd8277f0b66c169a4b11618cd947f70b1c", kill_on_drop: false }`
[INFO] [stdout] 21df00b3151ad78fba577c2b013acffd8277f0b66c169a4b11618cd947f70b1c