[INFO] fetching crate df_cp437 1.1.0...
[INFO] testing df_cp437-1.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate df_cp437 1.1.0 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate df_cp437 1.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate df_cp437 1.1.0
[INFO] finished tweaking crates.io crate df_cp437 1.1.0
[INFO] tweaked toml for crates.io crate df_cp437 1.1.0 written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0ead9a2ae34c6fa24900c1faaaba18815df600c15144920d201293fd1d3a40c
[INFO] running `Command { std: "docker" "start" "-a" "e0ead9a2ae34c6fa24900c1faaaba18815df600c15144920d201293fd1d3a40c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0ead9a2ae34c6fa24900c1faaaba18815df600c15144920d201293fd1d3a40c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ead9a2ae34c6fa24900c1faaaba18815df600c15144920d201293fd1d3a40c", kill_on_drop: false }`
[INFO] [stdout] e0ead9a2ae34c6fa24900c1faaaba18815df600c15144920d201293fd1d3a40c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dd48e85842b9f2a8e0699a64caa3d19d02660091006e14c4e927b044dbb5fc1
[INFO] running `Command { std: "docker" "start" "-a" "1dd48e85842b9f2a8e0699a64caa3d19d02660091006e14c4e927b044dbb5fc1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling df_cp437 v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.10s
[INFO] running `Command { std: "docker" "inspect" "1dd48e85842b9f2a8e0699a64caa3d19d02660091006e14c4e927b044dbb5fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd48e85842b9f2a8e0699a64caa3d19d02660091006e14c4e927b044dbb5fc1", kill_on_drop: false }`
[INFO] [stdout] 1dd48e85842b9f2a8e0699a64caa3d19d02660091006e14c4e927b044dbb5fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60be152f9bd25ec15fddaa35b390e2253e6eb12f8e4e1f2cabcb7c2e80b86e84
[INFO] running `Command { std: "docker" "start" "-a" "60be152f9bd25ec15fddaa35b390e2253e6eb12f8e4e1f2cabcb7c2e80b86e84", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling df_cp437 v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "60be152f9bd25ec15fddaa35b390e2253e6eb12f8e4e1f2cabcb7c2e80b86e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60be152f9bd25ec15fddaa35b390e2253e6eb12f8e4e1f2cabcb7c2e80b86e84", kill_on_drop: false }`
[INFO] [stdout] 60be152f9bd25ec15fddaa35b390e2253e6eb12f8e4e1f2cabcb7c2e80b86e84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71114e505417956bfa15792a9f2456cc2de97651572bea20959cb2760023cde5
[INFO] running `Command { std: "docker" "start" "-a" "71114e505417956bfa15792a9f2456cc2de97651572bea20959cb2760023cde5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/df_cp437-25ad12352048bee8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test convert_to_char::tests::test_char_convert ... ok
[INFO] [stdout] test cp437::tests::test_cp437_byte_to_utf8_bytes_for_chars ... ok
[INFO] [stdout] test cp437::tests::test_cp437_byte_to_utf8_bytes_for_text ... ok
[INFO] [stdout] test string_convert::tests::test_string_convert ... 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] [stderr]    Doc-tests df_cp437
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::capacity (line 143) - compile ... FAILED
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::buffer (line 120) - compile ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::into_inner (line 169) - compile ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::get_mut (line 98) - compile ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::get_ref (line 76) - compile ... ok
[INFO] [stdout] test src/bufreader.rs - bufreader::BufReader<R, T>::new (line 38) - compile ... 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; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "71114e505417956bfa15792a9f2456cc2de97651572bea20959cb2760023cde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71114e505417956bfa15792a9f2456cc2de97651572bea20959cb2760023cde5", kill_on_drop: false }`
[INFO] [stdout] 71114e505417956bfa15792a9f2456cc2de97651572bea20959cb2760023cde5
