[INFO] fetching crate fern_macros 0.1.8...
[INFO] fixing fern_macros-0.1.8 against master#09a371361240e42b0d69438fd1179efcf212e576+cargoflags=-Zfix-edition=start=2015 for pr-157817
[INFO] extracting crate fern_macros 0.1.8 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate fern_macros 0.1.8
[INFO] finished tweaking crates.io crate fern_macros 0.1.8
[INFO] tweaked toml for crates.io crate fern_macros 0.1.8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fern_macros 0.1.8 on toolchain 09a371361240e42b0d69438fd1179efcf212e576
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding fern v0.1.12 (available: v0.7.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `fern_macros` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fern v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111
[INFO] running `Command { std: "docker" "start" "dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111" "/opt/rustwide/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111" "/opt/rustwide/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `fern_macros` (manifest) generated 1 warning
[INFO] [stderr]     Checking fern v0.1.12
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io as io;
[INFO] [stdout]   |     ^^^^^------^^^^^^
[INFO] [stdout]   |          |
[INFO] [stdout]   |          no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::old_io::stdio;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/loggers.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io as io;
[INFO] [stdout]   |     ^^^^^------^^^^^^
[INFO] [stdout]   |          |
[INFO] [stdout]   |          no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/loggers.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::old_io::stdio;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io as io;
[INFO] [stdout]   |     ^^^^^------^^^^^^
[INFO] [stdout]   |          |
[INFO] [stdout]   |          no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Path` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 |     File(Path),
[INFO] [stdout]    |          ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Path` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/loggers.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn with_file(path: &Path) -> io::IoResult<WriterLogger<io::File>> {
[INFO] [stdout]    |                             ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `FromError` in module `error`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/errors.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl error::FromError<io::IoError> for Error {
[INFO] [stdout]    |             ^^^^^^^^^ not found in `error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `FromError` in module `error`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/errors.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <T> error::FromError<sync::PoisonError<T>> for Error {
[INFO] [stdout]    |                 ^^^^^^^^^ not found in `error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/lib.rs:137:1
[INFO] [stdout]     |
[INFO] [stdout] 137 | #[unstable]
[INFO] [stdout]     | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/lib.rs:137:1
[INFO] [stdout]     |
[INFO] [stdout] 137 | #[unstable]
[INFO] [stdout]     | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]     |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]     |
[INFO] [stdout] 137 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]     |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/local.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/local.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/local.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/local.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[unstable]
[INFO] [stdout]   | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[unstable]
[INFO] [stdout]   | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]   |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]   |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 26 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 29 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 32 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 35 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[stable]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `stable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[stable]
[INFO] [stdout]    | ^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[stable(feature = "name", since = "version")]
[INFO] [stdout]    |         +++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 47 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 58 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/config.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     #[unstable]
[INFO] [stdout]    |     ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 72 |     #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |               +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/loggers.rs:90:1
[INFO] [stdout]    |
[INFO] [stdout] 90 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0539]: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/loggers.rs:90:1
[INFO] [stdout]    |
[INFO] [stdout] 90 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ expected this to be a list
[INFO] [stdout]    |
[INFO] [stdout] help: must be of the form
[INFO] [stdout]    |
[INFO] [stdout] 90 | #[unstable(feature = "name", reason = "...", issue = "N")]
[INFO] [stdout]    |           +++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `old_io`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(old_io, old_path)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `old_path`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/lib.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(old_io, old_path)]
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: there is a feature with a similar name: `cold_path`
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(old_io, cold_path)]
[INFO] [stdout]   |                    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Level: Clone` is not satisfied
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/api.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Copy for Level {}
[INFO] [stdout]    |               ^^^^^ the trait `Clone` is not implemented for `Level`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `Copy`
[INFO] [stdout]   --> /rustc/09a371361240e42b0d69438fd1179efcf212e576/library/core/src/marker.rs:454:0
[INFO] [stdout] help: consider annotating `Level` with `#[derive(Clone)]`
[INFO] [stdout]    |
[INFO] [stdout] 24 + #[derive(Clone)]
[INFO] [stdout] 25 | pub enum Level {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `NullLogger: Clone` is not satisfied
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/loggers.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[derive(Copy)]
[INFO] [stdout]    |          ---- in this derive macro expansion
[INFO] [stdout] 92 | pub struct NullLogger;
[INFO] [stdout]    |            ^^^^^^^^^^ the trait `Clone` is not implemented for `NullLogger`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `Copy`
[INFO] [stdout]   --> /rustc/09a371361240e42b0d69438fd1179efcf212e576/library/core/src/marker.rs:454:0
[INFO] [stdout] help: consider annotating `NullLogger` with `#[derive(Clone)]`
[INFO] [stdout]    |
[INFO] [stdout] 92 + #[derive(Clone)]
[INFO] [stdout] 93 | pub struct NullLogger;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0405, E0425, E0432, E0539, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fern` (lib) due to 61 previous errors
[INFO] running `Command { std: "docker" "inspect" "dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111", kill_on_drop: false }`
[INFO] [stdout] dc52ef489a12daa7ad53fec1a94382dd0819f8a6bb826ecfbb7904442735d111