[INFO] fetching crate downgrade 0.1.0...
[INFO] testing downgrade-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate downgrade 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate downgrade 0.1.0
[INFO] finished tweaking crates.io crate downgrade 0.1.0
[INFO] tweaked toml for crates.io crate downgrade 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate downgrade 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate downgrade 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e438eccfbe9c82af6702d51492b21913cae308aaab18832638b439046f6cd63
[INFO] running `Command { std: "docker" "start" "-a" "7e438eccfbe9c82af6702d51492b21913cae308aaab18832638b439046f6cd63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e438eccfbe9c82af6702d51492b21913cae308aaab18832638b439046f6cd63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e438eccfbe9c82af6702d51492b21913cae308aaab18832638b439046f6cd63", kill_on_drop: false }`
[INFO] [stdout] 7e438eccfbe9c82af6702d51492b21913cae308aaab18832638b439046f6cd63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3350d9ac8f2c2a0d25741b2494345bc70f2bbb78bfa13179a4b4a03a0db86300
[INFO] running `Command { std: "docker" "start" "-a" "3350d9ac8f2c2a0d25741b2494345bc70f2bbb78bfa13179a4b4a03a0db86300", kill_on_drop: false }`
[INFO] [stderr]    Compiling downgrade v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "3350d9ac8f2c2a0d25741b2494345bc70f2bbb78bfa13179a4b4a03a0db86300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3350d9ac8f2c2a0d25741b2494345bc70f2bbb78bfa13179a4b4a03a0db86300", kill_on_drop: false }`
[INFO] [stdout] 3350d9ac8f2c2a0d25741b2494345bc70f2bbb78bfa13179a4b4a03a0db86300
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb5f0e7e3be446bf9e9f6c792962e45e6dbfb07aa581ddedcdee4b89770a0324
[INFO] running `Command { std: "docker" "start" "-a" "bb5f0e7e3be446bf9e9f6c792962e45e6dbfb07aa581ddedcdee4b89770a0324", kill_on_drop: false }`
[INFO] [stderr]    Compiling downgrade v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "bb5f0e7e3be446bf9e9f6c792962e45e6dbfb07aa581ddedcdee4b89770a0324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb5f0e7e3be446bf9e9f6c792962e45e6dbfb07aa581ddedcdee4b89770a0324", kill_on_drop: false }`
[INFO] [stdout] bb5f0e7e3be446bf9e9f6c792962e45e6dbfb07aa581ddedcdee4b89770a0324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f1b91cbce13e0a84e4e2d6a2b93b587e6c593ee3e3802b00449d3f3d0f5e077
[INFO] running `Command { std: "docker" "start" "-a" "0f1b91cbce13e0a84e4e2d6a2b93b587e6c593ee3e3802b00449d3f3d0f5e077", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/downgrade-6a50313f87fe1ed0)
[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 downgrade
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/../README.md - (line 7) ... ok
[INFO] [stdout] test src/../README.md - (line 71) ... ok
[INFO] [stdout] test src/../README.md - (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/../README.md - (line 25) - compile fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.57s; merged doctests compilation took 0.47s
[INFO] running `Command { std: "docker" "inspect" "0f1b91cbce13e0a84e4e2d6a2b93b587e6c593ee3e3802b00449d3f3d0f5e077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f1b91cbce13e0a84e4e2d6a2b93b587e6c593ee3e3802b00449d3f3d0f5e077", kill_on_drop: false }`
[INFO] [stdout] 0f1b91cbce13e0a84e4e2d6a2b93b587e6c593ee3e3802b00449d3f3d0f5e077