[INFO] fetching crate ringbuf-rs 0.2.6...
[INFO] testing ringbuf-rs-0.2.6 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate ringbuf-rs 0.2.6 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ringbuf-rs 0.2.6
[INFO] finished tweaking crates.io crate ringbuf-rs 0.2.6
[INFO] tweaked toml for crates.io crate ringbuf-rs 0.2.6 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ringbuf-rs 0.2.6 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] dfe9ab23b332a0df446986c60643cdc12ad8076f4e97bdc0b59040ff39e00a41
[INFO] running `Command { std: "docker" "start" "-a" "dfe9ab23b332a0df446986c60643cdc12ad8076f4e97bdc0b59040ff39e00a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfe9ab23b332a0df446986c60643cdc12ad8076f4e97bdc0b59040ff39e00a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe9ab23b332a0df446986c60643cdc12ad8076f4e97bdc0b59040ff39e00a41", kill_on_drop: false }`
[INFO] [stdout] dfe9ab23b332a0df446986c60643cdc12ad8076f4e97bdc0b59040ff39e00a41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0451eaab35eeb7765c2429431a61790d3b32048ca009485b2a5991aeae758012
[INFO] running `Command { std: "docker" "start" "-a" "0451eaab35eeb7765c2429431a61790d3b32048ca009485b2a5991aeae758012", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringbuf-rs v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "0451eaab35eeb7765c2429431a61790d3b32048ca009485b2a5991aeae758012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0451eaab35eeb7765c2429431a61790d3b32048ca009485b2a5991aeae758012", kill_on_drop: false }`
[INFO] [stdout] 0451eaab35eeb7765c2429431a61790d3b32048ca009485b2a5991aeae758012
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 89d1184e7588d5e8452e5fc5303d6e0ec418f31aa448c1ba7a88ddc0b69f9fe5
[INFO] running `Command { std: "docker" "start" "-a" "89d1184e7588d5e8452e5fc5303d6e0ec418f31aa448c1ba7a88ddc0b69f9fe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringbuf-rs v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "89d1184e7588d5e8452e5fc5303d6e0ec418f31aa448c1ba7a88ddc0b69f9fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89d1184e7588d5e8452e5fc5303d6e0ec418f31aa448c1ba7a88ddc0b69f9fe5", kill_on_drop: false }`
[INFO] [stdout] 89d1184e7588d5e8452e5fc5303d6e0ec418f31aa448c1ba7a88ddc0b69f9fe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f9b31fa0816eef8d39322dfdcdf38194d3c619b2833aedde4c675248479d0fb7
[INFO] running `Command { std: "docker" "start" "-a" "f9b31fa0816eef8d39322dfdcdf38194d3c619b2833aedde4c675248479d0fb7", 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/ringbuf_rs-d054ac2cb61bae85)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_ring_buf ... 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 ringbuf_rs
[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" "f9b31fa0816eef8d39322dfdcdf38194d3c619b2833aedde4c675248479d0fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b31fa0816eef8d39322dfdcdf38194d3c619b2833aedde4c675248479d0fb7", kill_on_drop: false }`
[INFO] [stdout] f9b31fa0816eef8d39322dfdcdf38194d3c619b2833aedde4c675248479d0fb7