[INFO] fetching crate downgrade 0.1.0...
[INFO] testing downgrade-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate downgrade 0.1.0 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate downgrade 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4055c1b8baa484b160c2608112cadbd7081f9049e8ec5ee343825c4af9dc35bd
[INFO] running `Command { std: "docker" "start" "-a" "4055c1b8baa484b160c2608112cadbd7081f9049e8ec5ee343825c4af9dc35bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4055c1b8baa484b160c2608112cadbd7081f9049e8ec5ee343825c4af9dc35bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4055c1b8baa484b160c2608112cadbd7081f9049e8ec5ee343825c4af9dc35bd", kill_on_drop: false }`
[INFO] [stdout] 4055c1b8baa484b160c2608112cadbd7081f9049e8ec5ee343825c4af9dc35bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b1fc257a706e9bb15a908c19d7f9bcf412605a39b08b0608589c2b2ebac7522
[INFO] running `Command { std: "docker" "start" "-a" "2b1fc257a706e9bb15a908c19d7f9bcf412605a39b08b0608589c2b2ebac7522", 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" "2b1fc257a706e9bb15a908c19d7f9bcf412605a39b08b0608589c2b2ebac7522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b1fc257a706e9bb15a908c19d7f9bcf412605a39b08b0608589c2b2ebac7522", kill_on_drop: false }`
[INFO] [stdout] 2b1fc257a706e9bb15a908c19d7f9bcf412605a39b08b0608589c2b2ebac7522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7817ee8fc3169dbd7ce88fb4c2a8d8231b5ead3203e97201bef274e51cafee43
[INFO] running `Command { std: "docker" "start" "-a" "7817ee8fc3169dbd7ce88fb4c2a8d8231b5ead3203e97201bef274e51cafee43", kill_on_drop: false }`
[INFO] [stderr]    Compiling downgrade v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "7817ee8fc3169dbd7ce88fb4c2a8d8231b5ead3203e97201bef274e51cafee43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7817ee8fc3169dbd7ce88fb4c2a8d8231b5ead3203e97201bef274e51cafee43", kill_on_drop: false }`
[INFO] [stdout] 7817ee8fc3169dbd7ce88fb4c2a8d8231b5ead3203e97201bef274e51cafee43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9840a4cc71d7a38625cbcee39a95bdc635f81627ad4c6e1ae30c4b932e3cf52e
[INFO] running `Command { std: "docker" "start" "-a" "9840a4cc71d7a38625cbcee39a95bdc635f81627ad4c6e1ae30c4b932e3cf52e", 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-ce7983d64746378b)
[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 48) ... ok
[INFO] [stdout] test src/../README.md - (line 71) ... 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 0.73s; merged doctests compilation took 0.63s
[INFO] running `Command { std: "docker" "inspect" "9840a4cc71d7a38625cbcee39a95bdc635f81627ad4c6e1ae30c4b932e3cf52e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9840a4cc71d7a38625cbcee39a95bdc635f81627ad4c6e1ae30c4b932e3cf52e", kill_on_drop: false }`
[INFO] [stdout] 9840a4cc71d7a38625cbcee39a95bdc635f81627ad4c6e1ae30c4b932e3cf52e