[INFO] fetching crate rc-u8-reader 2.0.12...
[INFO] testing rc-u8-reader-2.0.12 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rc-u8-reader 2.0.12 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rc-u8-reader 2.0.12 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rc-u8-reader 2.0.12
[INFO] finished tweaking crates.io crate rc-u8-reader 2.0.12
[INFO] tweaked toml for crates.io crate rc-u8-reader 2.0.12 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded debug-helper v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e32dc50819d97fa45b84414bac0adffd0786270d11f9ce0e270abc3e145c056e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e32dc50819d97fa45b84414bac0adffd0786270d11f9ce0e270abc3e145c056e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e32dc50819d97fa45b84414bac0adffd0786270d11f9ce0e270abc3e145c056e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32dc50819d97fa45b84414bac0adffd0786270d11f9ce0e270abc3e145c056e", kill_on_drop: false }`
[INFO] [stdout] e32dc50819d97fa45b84414bac0adffd0786270d11f9ce0e270abc3e145c056e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a91875c055cb442d29698fbafa7d44ea6ad1def159652e59aa7a7b1b45b2cf68
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a91875c055cb442d29698fbafa7d44ea6ad1def159652e59aa7a7b1b45b2cf68", kill_on_drop: false }`
[INFO] [stderr]    Compiling debug-helper v0.3.10
[INFO] [stderr]    Compiling rc-u8-reader v2.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "a91875c055cb442d29698fbafa7d44ea6ad1def159652e59aa7a7b1b45b2cf68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a91875c055cb442d29698fbafa7d44ea6ad1def159652e59aa7a7b1b45b2cf68", kill_on_drop: false }`
[INFO] [stdout] a91875c055cb442d29698fbafa7d44ea6ad1def159652e59aa7a7b1b45b2cf68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1166700d803e4adb147c28be64851991fda3c343a6cdd46e2129d0f24f21583a
[INFO] running `Command { std: "docker" "start" "-a" "1166700d803e4adb147c28be64851991fda3c343a6cdd46e2129d0f24f21583a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc-u8-reader v2.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "1166700d803e4adb147c28be64851991fda3c343a6cdd46e2129d0f24f21583a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1166700d803e4adb147c28be64851991fda3c343a6cdd46e2129d0f24f21583a", kill_on_drop: false }`
[INFO] [stdout] 1166700d803e4adb147c28be64851991fda3c343a6cdd46e2129d0f24f21583a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b705370f4e7412a87f0819cc9ead5ec5a393898fbb7da6441e52305d4f336145
[INFO] running `Command { std: "docker" "start" "-a" "b705370f4e7412a87f0819cc9ead5ec5a393898fbb7da6441e52305d4f336145", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rc_u8_reader-89a1656a20ce625b
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rc-u8-reader
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 52) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 73) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.66s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b705370f4e7412a87f0819cc9ead5ec5a393898fbb7da6441e52305d4f336145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b705370f4e7412a87f0819cc9ead5ec5a393898fbb7da6441e52305d4f336145", kill_on_drop: false }`
[INFO] [stdout] b705370f4e7412a87f0819cc9ead5ec5a393898fbb7da6441e52305d4f336145