[INFO] fetching crate r50 0.18.6...
[INFO] testing r50-0.18.6 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate r50 0.18.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate r50 0.18.6
[INFO] finished tweaking crates.io crate r50 0.18.6
[INFO] tweaked toml for crates.io crate r50 0.18.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate r50 0.18.6 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate r50 0.18.6 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73b73909e3c506daee06f974ba3024c91370f18927f0ae4cf09fd055ca735f25
[INFO] running `Command { std: "docker" "start" "-a" "73b73909e3c506daee06f974ba3024c91370f18927f0ae4cf09fd055ca735f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73b73909e3c506daee06f974ba3024c91370f18927f0ae4cf09fd055ca735f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b73909e3c506daee06f974ba3024c91370f18927f0ae4cf09fd055ca735f25", kill_on_drop: false }`
[INFO] [stdout] 73b73909e3c506daee06f974ba3024c91370f18927f0ae4cf09fd055ca735f25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ef8937b34526640f3618b5ec996454fd3ce0121babbf8cf05f783e6b11a1b33
[INFO] running `Command { std: "docker" "start" "-a" "3ef8937b34526640f3618b5ec996454fd3ce0121babbf8cf05f783e6b11a1b33", kill_on_drop: false }`
[INFO] [stderr]    Compiling r50 v0.18.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "3ef8937b34526640f3618b5ec996454fd3ce0121babbf8cf05f783e6b11a1b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef8937b34526640f3618b5ec996454fd3ce0121babbf8cf05f783e6b11a1b33", kill_on_drop: false }`
[INFO] [stdout] 3ef8937b34526640f3618b5ec996454fd3ce0121babbf8cf05f783e6b11a1b33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b41fe365c2b45b825f6f2591aab7e3c7d10935e44e9a0f8a74e5af93a98b0d9
[INFO] running `Command { std: "docker" "start" "-a" "8b41fe365c2b45b825f6f2591aab7e3c7d10935e44e9a0f8a74e5af93a98b0d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling r50 v0.18.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "8b41fe365c2b45b825f6f2591aab7e3c7d10935e44e9a0f8a74e5af93a98b0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b41fe365c2b45b825f6f2591aab7e3c7d10935e44e9a0f8a74e5af93a98b0d9", kill_on_drop: false }`
[INFO] [stdout] 8b41fe365c2b45b825f6f2591aab7e3c7d10935e44e9a0f8a74e5af93a98b0d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 766a259643ab3f95a8e18c93032ab73aaf074bbf379adaddda066b9384e155b4
[INFO] running `Command { std: "docker" "start" "-a" "766a259643ab3f95a8e18c93032ab73aaf074bbf379adaddda066b9384e155b4", 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/r50-b5dc6261bf164bf7)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_crate_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests r50
[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" "766a259643ab3f95a8e18c93032ab73aaf074bbf379adaddda066b9384e155b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "766a259643ab3f95a8e18c93032ab73aaf074bbf379adaddda066b9384e155b4", kill_on_drop: false }`
[INFO] [stdout] 766a259643ab3f95a8e18c93032ab73aaf074bbf379adaddda066b9384e155b4