[INFO] fetching crate msb128 0.1.0...
[INFO] testing msb128-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate msb128 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate msb128 0.1.0 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 msb128 0.1.0
[INFO] finished tweaking crates.io crate msb128 0.1.0
[INFO] tweaked toml for crates.io crate msb128 0.1.0 written to /workspace/builds/worker-13/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] 25c7b90ef1656e082797d64d2194a60a24eabd515ff0f996754bfa925a92b459
[INFO] running `Command { std: "docker" "start" "-a" "25c7b90ef1656e082797d64d2194a60a24eabd515ff0f996754bfa925a92b459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25c7b90ef1656e082797d64d2194a60a24eabd515ff0f996754bfa925a92b459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c7b90ef1656e082797d64d2194a60a24eabd515ff0f996754bfa925a92b459", kill_on_drop: false }`
[INFO] [stdout] 25c7b90ef1656e082797d64d2194a60a24eabd515ff0f996754bfa925a92b459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f35dbc84fa62371d8d96d6506de825f2c31133f3605313da47e494d09934df
[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" "a0f35dbc84fa62371d8d96d6506de825f2c31133f3605313da47e494d09934df", kill_on_drop: false }`
[INFO] [stderr]    Compiling msb128 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "a0f35dbc84fa62371d8d96d6506de825f2c31133f3605313da47e494d09934df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f35dbc84fa62371d8d96d6506de825f2c31133f3605313da47e494d09934df", kill_on_drop: false }`
[INFO] [stdout] a0f35dbc84fa62371d8d96d6506de825f2c31133f3605313da47e494d09934df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2415ba7e283b2d93f94633dba50b89aea15e1229540ba3152526e3cb69270e75
[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" "2415ba7e283b2d93f94633dba50b89aea15e1229540ba3152526e3cb69270e75", kill_on_drop: false }`
[INFO] [stderr]    Compiling msb128 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "2415ba7e283b2d93f94633dba50b89aea15e1229540ba3152526e3cb69270e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2415ba7e283b2d93f94633dba50b89aea15e1229540ba3152526e3cb69270e75", kill_on_drop: false }`
[INFO] [stdout] 2415ba7e283b2d93f94633dba50b89aea15e1229540ba3152526e3cb69270e75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae7bcd95588b4ef92e1066f9156c7b3ce6ac6e472d488a5aa10fdd316c43866b
[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" "ae7bcd95588b4ef92e1066f9156c7b3ce6ac6e472d488a5aa10fdd316c43866b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/msb128-bd821ab821256e86
[INFO] [stdout] test test_writing ... ok
[INFO] [stdout] test test_reading ... ok
[INFO] [stderr]    Doc-tests msb128
[INFO] [stdout] test test_write_and_then_read ... ok
[INFO] [stdout] test test_is_err_on_negative_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - read_positive (line 68) ... ok
[INFO] [stdout] test src/lib.rs - read_positive (line 91) ... ok
[INFO] [stdout] test src/lib.rs - write_positive (line 216) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ae7bcd95588b4ef92e1066f9156c7b3ce6ac6e472d488a5aa10fdd316c43866b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae7bcd95588b4ef92e1066f9156c7b3ce6ac6e472d488a5aa10fdd316c43866b", kill_on_drop: false }`
[INFO] [stdout] ae7bcd95588b4ef92e1066f9156c7b3ce6ac6e472d488a5aa10fdd316c43866b