[INFO] fetching crate read-from 0.5.2...
[INFO] testing read-from-0.5.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate read-from 0.5.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate read-from 0.5.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate read-from 0.5.2
[INFO] finished tweaking crates.io crate read-from 0.5.2
[INFO] tweaked toml for crates.io crate read-from 0.5.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce1ad7c56660c5dc798c26ce1963f6f486a03feaea5b94318e2e7bd24e6559d4
[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" "ce1ad7c56660c5dc798c26ce1963f6f486a03feaea5b94318e2e7bd24e6559d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce1ad7c56660c5dc798c26ce1963f6f486a03feaea5b94318e2e7bd24e6559d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1ad7c56660c5dc798c26ce1963f6f486a03feaea5b94318e2e7bd24e6559d4", kill_on_drop: false }`
[INFO] [stdout] ce1ad7c56660c5dc798c26ce1963f6f486a03feaea5b94318e2e7bd24e6559d4
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f871ab9aef29609b2134d7aedeece1558c90742f2b71dc27becb67e83763b510
[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" "f871ab9aef29609b2134d7aedeece1558c90742f2b71dc27becb67e83763b510", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-from v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "f871ab9aef29609b2134d7aedeece1558c90742f2b71dc27becb67e83763b510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f871ab9aef29609b2134d7aedeece1558c90742f2b71dc27becb67e83763b510", kill_on_drop: false }`
[INFO] [stdout] f871ab9aef29609b2134d7aedeece1558c90742f2b71dc27becb67e83763b510
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e7d148c5d1b1ae291e882ad8a8893742ec5197a558b36128a6a4c5052c0923e
[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" "3e7d148c5d1b1ae291e882ad8a8893742ec5197a558b36128a6a4c5052c0923e", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-from v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "3e7d148c5d1b1ae291e882ad8a8893742ec5197a558b36128a6a4c5052c0923e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7d148c5d1b1ae291e882ad8a8893742ec5197a558b36128a6a4c5052c0923e", kill_on_drop: false }`
[INFO] [stdout] 3e7d148c5d1b1ae291e882ad8a8893742ec5197a558b36128a6a4c5052c0923e
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c3be0dd1f390d2243ca2f77572fe63016fa0d431c6f6007f8ee584c984870d8c
[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" "c3be0dd1f390d2243ca2f77572fe63016fa0d431c6f6007f8ee584c984870d8c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/read_from-0218fe693d88cf46
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests read-from
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - LittleEndian (line 185) ... ok
[INFO] [stdout] test src/lib.rs - ReadFrom (line 25) ... ok
[INFO] [stdout] test src/lib.rs - BigEndian (line 203) ... ok
[INFO] [stdout] test src/lib.rs - NativeEndian (line 221) ... ok
[INFO] [stdout] test src/lib.rs - WriteTo (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3be0dd1f390d2243ca2f77572fe63016fa0d431c6f6007f8ee584c984870d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3be0dd1f390d2243ca2f77572fe63016fa0d431c6f6007f8ee584c984870d8c", kill_on_drop: false }`
[INFO] [stdout] c3be0dd1f390d2243ca2f77572fe63016fa0d431c6f6007f8ee584c984870d8c