[INFO] fetching crate r50 0.18.6...
[INFO] testing r50-0.18.6 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate r50 0.18.6 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate r50 0.18.6 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blackhole v0.20.2
[INFO] [stderr]   Downloaded dia-args v0.60.2
[INFO] [stderr]   Downloaded nairud v0.11.0
[INFO] [stderr]   Downloaded namaste v0.29.1
[INFO] [stderr]   Downloaded libc v0.2.171
[INFO] [stderr]   Downloaded zeros v17.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a92aa86ae57dc21a1c136a7df794eacba02c7a91c4a1ee5e20aaa56051a7201
[INFO] running `Command { std: "docker" "start" "-a" "2a92aa86ae57dc21a1c136a7df794eacba02c7a91c4a1ee5e20aaa56051a7201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a92aa86ae57dc21a1c136a7df794eacba02c7a91c4a1ee5e20aaa56051a7201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a92aa86ae57dc21a1c136a7df794eacba02c7a91c4a1ee5e20aaa56051a7201", kill_on_drop: false }`
[INFO] [stdout] 2a92aa86ae57dc21a1c136a7df794eacba02c7a91c4a1ee5e20aaa56051a7201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0f6b48b1fd23a50de5611fefca354e20303f2b3a5243f98a27ce289ed292b43
[INFO] running `Command { std: "docker" "start" "-a" "b0f6b48b1fd23a50de5611fefca354e20303f2b3a5243f98a27ce289ed292b43", kill_on_drop: false }`
[INFO] [stderr]    Compiling r50 v0.18.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "b0f6b48b1fd23a50de5611fefca354e20303f2b3a5243f98a27ce289ed292b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f6b48b1fd23a50de5611fefca354e20303f2b3a5243f98a27ce289ed292b43", kill_on_drop: false }`
[INFO] [stdout] b0f6b48b1fd23a50de5611fefca354e20303f2b3a5243f98a27ce289ed292b43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab8eb7b2404aeae8985ff9a3d5ed95fe95888c3fe36286179c87c2f1cd696566
[INFO] running `Command { std: "docker" "start" "-a" "ab8eb7b2404aeae8985ff9a3d5ed95fe95888c3fe36286179c87c2f1cd696566", kill_on_drop: false }`
[INFO] [stderr]    Compiling r50 v0.18.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "ab8eb7b2404aeae8985ff9a3d5ed95fe95888c3fe36286179c87c2f1cd696566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab8eb7b2404aeae8985ff9a3d5ed95fe95888c3fe36286179c87c2f1cd696566", kill_on_drop: false }`
[INFO] [stdout] ab8eb7b2404aeae8985ff9a3d5ed95fe95888c3fe36286179c87c2f1cd696566
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3653e3e5d27d8c97116fb46c4d0892d174954c7007144c760ca882f1a1cbc745
[INFO] running `Command { std: "docker" "start" "-a" "3653e3e5d27d8c97116fb46c4d0892d174954c7007144c760ca882f1a1cbc745", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[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] [stderr]    Doc-tests r50
[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] [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" "3653e3e5d27d8c97116fb46c4d0892d174954c7007144c760ca882f1a1cbc745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3653e3e5d27d8c97116fb46c4d0892d174954c7007144c760ca882f1a1cbc745", kill_on_drop: false }`
[INFO] [stdout] 3653e3e5d27d8c97116fb46c4d0892d174954c7007144c760ca882f1a1cbc745