[INFO] fetching crate fast-logger 0.7.1...
[INFO] testing fast-logger-0.7.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate fast-logger 0.7.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate fast-logger 0.7.1
[INFO] finished tweaking crates.io crate fast-logger 0.7.1
[INFO] tweaked toml for crates.io crate fast-logger 0.7.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast-logger 0.7.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 110 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18e6174696d950f67e061607fcc1c086436a0e64cf0b8959a9ae68e2e6d2ea54
[INFO] running `Command { std: "docker" "start" "-a" "18e6174696d950f67e061607fcc1c086436a0e64cf0b8959a9ae68e2e6d2ea54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18e6174696d950f67e061607fcc1c086436a0e64cf0b8959a9ae68e2e6d2ea54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e6174696d950f67e061607fcc1c086436a0e64cf0b8959a9ae68e2e6d2ea54", kill_on_drop: false }`
[INFO] [stdout] 18e6174696d950f67e061607fcc1c086436a0e64cf0b8959a9ae68e2e6d2ea54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] da482785d5921a04d1e33540a05523ebd798a639638046dc307a5d1a93901c11
[INFO] running `Command { std: "docker" "start" "-a" "da482785d5921a04d1e33540a05523ebd798a639638046dc307a5d1a93901c11", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling fast-logger v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log::*`
[INFO] [stdout]    --> lib.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub use log::*;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> lib.rs:841:50
[INFO] [stdout]     |
[INFO] [stdout] 841 |     pub fn make_writer(&self, level: u8) -> impl std::fmt::Write + '_ {
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> lib.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 237 |     unused_qualifications
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 841 -     pub fn make_writer(&self, level: u8) -> impl std::fmt::Write + '_ {
[INFO] [stdout] 841 +     pub fn make_writer(&self, level: u8) -> impl fmt::Write + '_ {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> lib.rs:846:62
[INFO] [stdout]     |
[INFO] [stdout] 846 |         impl<'a, C: 'static + Display + Send + From<String>> std::fmt::Write for Writer<'a, C> {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 846 -         impl<'a, C: 'static + Display + Send + From<String>> std::fmt::Write for Writer<'a, C> {
[INFO] [stdout] 846 +         impl<'a, C: 'static + Display + Send + From<String>> fmt::Write for Writer<'a, C> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> lib.rs:847:60
[INFO] [stdout]     |
[INFO] [stdout] 847 |             fn write_str(&mut self, s: &str) -> Result<(), std::fmt::Error> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 847 -             fn write_str(&mut self, s: &str) -> Result<(), std::fmt::Error> {
[INFO] [stdout] 847 +             fn write_str(&mut self, s: &str) -> Result<(), fmt::Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]     --> lib.rs:1204:27
[INFO] [stdout]      |
[INFO] [stdout] 1204 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1204 -     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout] 1204 +     fn fmt(&self, f: &mut fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]     --> lib.rs:1204:51
[INFO] [stdout]      |
[INFO] [stdout] 1204 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1204 -     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout] 1204 +     fn fmt(&self, f: &mut std::fmt::Formatter) -> fmt::Result {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]     --> lib.rs:1213:27
[INFO] [stdout]      |
[INFO] [stdout] 1213 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1213 -     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout] 1213 +     fn fmt(&self, f: &mut fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]     --> lib.rs:1213:51
[INFO] [stdout]      |
[INFO] [stdout] 1213 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1213 -     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout] 1213 +     fn fmt(&self, f: &mut std::fmt::Formatter) -> fmt::Result {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]     --> lib.rs:1222:27
[INFO] [stdout]      |
[INFO] [stdout] 1222 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1222 -     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout] 1222 +     fn fmt(&self, f: &mut fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]     --> lib.rs:1222:51
[INFO] [stdout]      |
[INFO] [stdout] 1222 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]      |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]      |
[INFO] [stdout] 1222 -     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout] 1222 +     fn fmt(&self, f: &mut std::fmt::Formatter) -> fmt::Result {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fast-logger` (lib) due to 9 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "da482785d5921a04d1e33540a05523ebd798a639638046dc307a5d1a93901c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da482785d5921a04d1e33540a05523ebd798a639638046dc307a5d1a93901c11", kill_on_drop: false }`
[INFO] [stdout] da482785d5921a04d1e33540a05523ebd798a639638046dc307a5d1a93901c11