[INFO] fetching crate fern_colored 0.6.1...
[INFO] testing fern_colored-0.6.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate fern_colored 0.6.1 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate fern_colored 0.6.1 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 fern_colored 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fern_colored 0.6.1
[INFO] tweaked toml for crates.io crate fern_colored 0.6.1 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate crates.io crate fern_colored 0.6.1 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 7f6ded91fb75c2be3706cf05dca77cdfa98b8cfadeedec3751f9d9425d2ded25
[INFO] running `Command { std: "docker" "start" "-a" "7f6ded91fb75c2be3706cf05dca77cdfa98b8cfadeedec3751f9d9425d2ded25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f6ded91fb75c2be3706cf05dca77cdfa98b8cfadeedec3751f9d9425d2ded25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6ded91fb75c2be3706cf05dca77cdfa98b8cfadeedec3751f9d9425d2ded25", kill_on_drop: false }`
[INFO] [stdout] 7f6ded91fb75c2be3706cf05dca77cdfa98b8cfadeedec3751f9d9425d2ded25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] f6bfadc1f9b4e78847815e68722db4d3b1f1ece4b33a37b8712588318de9ad8e
[INFO] running `Command { std: "docker" "start" "-a" "f6bfadc1f9b4e78847815e68722db4d3b1f1ece4b33a37b8712588318de9ad8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling fern_colored v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "f6bfadc1f9b4e78847815e68722db4d3b1f1ece4b33a37b8712588318de9ad8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6bfadc1f9b4e78847815e68722db4d3b1f1ece4b33a37b8712588318de9ad8e", kill_on_drop: false }`
[INFO] [stdout] f6bfadc1f9b4e78847815e68722db4d3b1f1ece4b33a37b8712588318de9ad8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] bf1ad6a3fbd4b35d196593550ca6f8b45ccfad8f2f4b29451ff6b313024d12c4
[INFO] running `Command { std: "docker" "start" "-a" "bf1ad6a3fbd4b35d196593550ca6f8b45ccfad8f2f4b29451ff6b313024d12c4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling fern_colored v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/global_logging.rs:69:11
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fern::Dispatch::new()
[INFO] [stdout]    |           ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> examples/meta-logging.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |         .chain(fern::log_file("hello.txt").unwrap())
[INFO] [stdout]    |                ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> examples/meta-logging.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fern::Dispatch::new()
[INFO] [stdout]    |           ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/file_logging.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |             .chain(fern::log_file(log_file).expect("Failed to open log file"))
[INFO] [stdout]    |                    ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/file_logging.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 fern::log_file(&log_file).expect("Failed to open log file"),
[INFO] [stdout]    |                 ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/file_logging.rs:18:42
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let (_max_level, logger) = fern::Dispatch::new()
[INFO] [stdout]    |                                          ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/file_logging.rs:78:42
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let (_max_level, logger) = fern::Dispatch::new()
[INFO] [stdout]    |                                          ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/file_logging.rs:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |             .chain(fern::Output::file(
[INFO] [stdout]    |                          ^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Output;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::process::Output;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/write_logging.rs:46:38
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (_max_level, logger) = fern::Dispatch::new()
[INFO] [stdout]    |                                      ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fern_colored`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]  --> examples/cmd-program.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn setup_logging(verbosity: u64) -> Result<(), fern::InitError> {
[INFO] [stdout]   |                                                ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]  --> tests/enabled_is_deep_check.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let dummy = fern::Dispatch::new()
[INFO] [stdout]   |                       ^^^^^^^^ not found in `fern`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use fern_colored::Dispatch;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/enabled_is_deep_check.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let stdout = fern::Dispatch::new()
[INFO] [stdout]    |                        ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/enabled_is_deep_check.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fern::Dispatch::new()
[INFO] [stdout]    |           ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> examples/cmd-program.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 |         .chain(fern::log_file("program.log")?);
[INFO] [stdout]    |                ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]  --> examples/cmd-program.rs:6:33
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut base_config = fern::Dispatch::new();
[INFO] [stdout]   |                                 ^^^^^^^^ not found in `fern`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fern_colored::Dispatch;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> examples/cmd-program.rs:25:29
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let file_config = fern::Dispatch::new()
[INFO] [stdout]    |                             ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> examples/cmd-program.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let stdout_config = fern::Dispatch::new()
[INFO] [stdout]    |                               ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/panic_logging.rs:11:60
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (_max_level, logger) = fern::Dispatch::new().chain(fern::Panic).into_log();
[INFO] [stdout]    |                                                            ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/panic_logging.rs:23:24
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 .chain(fern::Panic),
[INFO] [stdout]    |                        ^^^^ use of undeclared crate or module `fern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/panic_logging.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (_max_level, logger) = fern::Dispatch::new().chain(fern::Panic).into_log();
[INFO] [stdout]    |                                      ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/panic_logging.rs:19:38
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let (_max_level, logger) = fern::Dispatch::new()
[INFO] [stdout]    |                                      ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/panic_logging.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |             fern::Dispatch::new()
[INFO] [stdout]    |                   ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fern`
[INFO] [stdout]   --> tests/channel_logging.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let (_max_level, logger) = fern::Dispatch::new().chain(send).into_log();
[INFO] [stdout]    |                                      ^^^^^^^^ not found in `fern`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  | use fern_colored::Dispatch;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bf1ad6a3fbd4b35d196593550ca6f8b45ccfad8f2f4b29451ff6b313024d12c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf1ad6a3fbd4b35d196593550ca6f8b45ccfad8f2f4b29451ff6b313024d12c4", kill_on_drop: false }`
[INFO] [stdout] bf1ad6a3fbd4b35d196593550ca6f8b45ccfad8f2f4b29451ff6b313024d12c4
