[INFO] fetching crate df_cp437 1.0.0...
[INFO] testing df_cp437-1.0.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate df_cp437 1.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate df_cp437 1.0.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate df_cp437 1.0.0
[INFO] finished tweaking crates.io crate df_cp437 1.0.0
[INFO] tweaked toml for crates.io crate df_cp437 1.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0fdfea49b936976722d16a74e4fe0ca2c6c6bee34dda827e7c519c83a7472ab
[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" "a0fdfea49b936976722d16a74e4fe0ca2c6c6bee34dda827e7c519c83a7472ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0fdfea49b936976722d16a74e4fe0ca2c6c6bee34dda827e7c519c83a7472ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0fdfea49b936976722d16a74e4fe0ca2c6c6bee34dda827e7c519c83a7472ab", kill_on_drop: false }`
[INFO] [stdout] a0fdfea49b936976722d16a74e4fe0ca2c6c6bee34dda827e7c519c83a7472ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de3bb1ac837ccb4fcd31f1dc7890233cc37295b47cde67a53e031df83eb436fd
[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" "de3bb1ac837ccb4fcd31f1dc7890233cc37295b47cde67a53e031df83eb436fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling df_cp437 v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "de3bb1ac837ccb4fcd31f1dc7890233cc37295b47cde67a53e031df83eb436fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3bb1ac837ccb4fcd31f1dc7890233cc37295b47cde67a53e031df83eb436fd", kill_on_drop: false }`
[INFO] [stdout] de3bb1ac837ccb4fcd31f1dc7890233cc37295b47cde67a53e031df83eb436fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 6419faf6185ec4bf7162258abfe3799a6dca4ff879e84313e977c61e143a03ee
[INFO] running `Command { std: "docker" "start" "-a" "6419faf6185ec4bf7162258abfe3799a6dca4ff879e84313e977c61e143a03ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling df_cp437 v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "6419faf6185ec4bf7162258abfe3799a6dca4ff879e84313e977c61e143a03ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6419faf6185ec4bf7162258abfe3799a6dca4ff879e84313e977c61e143a03ee", kill_on_drop: false }`
[INFO] [stdout] 6419faf6185ec4bf7162258abfe3799a6dca4ff879e84313e977c61e143a03ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fdea9bdf6837309f302470553e35d2b2403c40b5d8662f15a2bc13e1cf96cd4b
[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" "fdea9bdf6837309f302470553e35d2b2403c40b5d8662f15a2bc13e1cf96cd4b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/df_cp437-3742014d248336a4
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests df_cp437
[INFO] [stdout] test cp437::tests::test_cp437_byte_to_utf8_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::capacity (line 143) ... FAILED
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::into_inner (line 169) ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::new (line 38) ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::get_ref (line 76) ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::get_mut (line 98) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::buffer (line 120) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/bufreader.rs - bufreader::BufReader<R, T>::capacity (line 143) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bufreader.rs:144:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(buffered_io_capacity)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/bufreader.rs - bufreader::BufReader<R, T>::capacity (line 143)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fdea9bdf6837309f302470553e35d2b2403c40b5d8662f15a2bc13e1cf96cd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdea9bdf6837309f302470553e35d2b2403c40b5d8662f15a2bc13e1cf96cd4b", kill_on_drop: false }`
[INFO] [stdout] fdea9bdf6837309f302470553e35d2b2403c40b5d8662f15a2bc13e1cf96cd4b
