[INFO] fetching crate null-crate 0.1.0...
[INFO] testing null-crate-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate null-crate 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate null-crate 0.1.0
[INFO] finished tweaking crates.io crate null-crate 0.1.0
[INFO] tweaked toml for crates.io crate null-crate 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate null-crate 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 729c280966aaff548ce70a46e2c8c78f2b7a9fd3168710836d383537e795218c
[INFO] running `Command { std: "docker" "start" "-a" "729c280966aaff548ce70a46e2c8c78f2b7a9fd3168710836d383537e795218c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "729c280966aaff548ce70a46e2c8c78f2b7a9fd3168710836d383537e795218c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "729c280966aaff548ce70a46e2c8c78f2b7a9fd3168710836d383537e795218c", kill_on_drop: false }`
[INFO] [stdout] 729c280966aaff548ce70a46e2c8c78f2b7a9fd3168710836d383537e795218c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 17b4be54a6f790a85dbf65cc9213695bc20ebe854cda1e1355c3ac4e8dba0b0c
[INFO] running `Command { std: "docker" "start" "-a" "17b4be54a6f790a85dbf65cc9213695bc20ebe854cda1e1355c3ac4e8dba0b0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling null-crate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "17b4be54a6f790a85dbf65cc9213695bc20ebe854cda1e1355c3ac4e8dba0b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b4be54a6f790a85dbf65cc9213695bc20ebe854cda1e1355c3ac4e8dba0b0c", kill_on_drop: false }`
[INFO] [stdout] 17b4be54a6f790a85dbf65cc9213695bc20ebe854cda1e1355c3ac4e8dba0b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6ab70a9b18f9d89772a7b53ed77e9b06b1b5a2d96e281330d0c380a5408be308
[INFO] running `Command { std: "docker" "start" "-a" "6ab70a9b18f9d89772a7b53ed77e9b06b1b5a2d96e281330d0c380a5408be308", kill_on_drop: false }`
[INFO] [stderr]    Compiling null-crate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "6ab70a9b18f9d89772a7b53ed77e9b06b1b5a2d96e281330d0c380a5408be308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab70a9b18f9d89772a7b53ed77e9b06b1b5a2d96e281330d0c380a5408be308", kill_on_drop: false }`
[INFO] [stdout] 6ab70a9b18f9d89772a7b53ed77e9b06b1b5a2d96e281330d0c380a5408be308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b426255d04b0870c82230538a548923c1fc8e649905034212f4a94b4c02a53f3
[INFO] running `Command { std: "docker" "start" "-a" "b426255d04b0870c82230538a548923c1fc8e649905034212f4a94b4c02a53f3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/null_crate-1d570d218a8f5390)
[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 null_crate
[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] running `Command { std: "docker" "inspect" "b426255d04b0870c82230538a548923c1fc8e649905034212f4a94b4c02a53f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b426255d04b0870c82230538a548923c1fc8e649905034212f4a94b4c02a53f3", kill_on_drop: false }`
[INFO] [stdout] b426255d04b0870c82230538a548923c1fc8e649905034212f4a94b4c02a53f3