[INFO] fetching crate micrologger 0.1.0...
[INFO] testing micrologger-0.1.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate micrologger 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate micrologger 0.1.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate micrologger 0.1.0
[INFO] finished tweaking crates.io crate micrologger 0.1.0
[INFO] tweaked toml for crates.io crate micrologger 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1830c3a038c6ba6eddf5823975ef2757a0ac822c90d33de9bd5767e74ad14301
[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" "1830c3a038c6ba6eddf5823975ef2757a0ac822c90d33de9bd5767e74ad14301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1830c3a038c6ba6eddf5823975ef2757a0ac822c90d33de9bd5767e74ad14301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1830c3a038c6ba6eddf5823975ef2757a0ac822c90d33de9bd5767e74ad14301", kill_on_drop: false }`
[INFO] [stdout] 1830c3a038c6ba6eddf5823975ef2757a0ac822c90d33de9bd5767e74ad14301
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81fd93de1e23f87a4463ab7b0437dea7ebcae9d45da4b53b44a392341efc6859
[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" "81fd93de1e23f87a4463ab7b0437dea7ebcae9d45da4b53b44a392341efc6859", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling micrologger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.44s
[INFO] running `Command { std: "docker" "inspect" "81fd93de1e23f87a4463ab7b0437dea7ebcae9d45da4b53b44a392341efc6859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fd93de1e23f87a4463ab7b0437dea7ebcae9d45da4b53b44a392341efc6859", kill_on_drop: false }`
[INFO] [stdout] 81fd93de1e23f87a4463ab7b0437dea7ebcae9d45da4b53b44a392341efc6859
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 854e2a54e360c2a606a4e82bc0cc2e4feff5069435e17bf88b9cf2229f880c1e
[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" "854e2a54e360c2a606a4e82bc0cc2e4feff5069435e17bf88b9cf2229f880c1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrologger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:174:32
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Err(err) => panic!(err),
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:224:34
[INFO] [stdout]     |
[INFO] [stdout] 224 |             Err(error) => panic!(error),
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 224 |             Err(error) => panic!("{}", error),
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 224 |             Err(error) => std::panic::panic_any(error),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "854e2a54e360c2a606a4e82bc0cc2e4feff5069435e17bf88b9cf2229f880c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854e2a54e360c2a606a4e82bc0cc2e4feff5069435e17bf88b9cf2229f880c1e", kill_on_drop: false }`
[INFO] [stdout] 854e2a54e360c2a606a4e82bc0cc2e4feff5069435e17bf88b9cf2229f880c1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ebb8f62638c4257d8920213463a7c7aa653ea234096334de56befb5f756a2db
[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" "7ebb8f62638c4257d8920213463a7c7aa653ea234096334de56befb5f756a2db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:174:32
[INFO] [stderr]     |
[INFO] [stderr] 174 |             Err(err) => panic!(err),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 174 |             Err(err) => panic!("{}", err),
[INFO] [stderr]     |                                ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 174 |             Err(err) => std::panic::panic_any(err),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:224:34
[INFO] [stderr]     |
[INFO] [stderr] 224 |             Err(error) => panic!(error),
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 224 |             Err(error) => panic!("{}", error),
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 224 |             Err(error) => std::panic::panic_any(error),
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/micrologger-19e4120ec277e1ef)
[INFO] [stderr]    Doc-tests micrologger
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::it_can_decode_log_entries ... ok
[INFO] [stdout] test test::it_can_handle_a_custom_formatter ... ok
[INFO] [stdout] test test::it_logs_a_message ... ok
[INFO] [stdout] test test::it_formats_log_messages_correctly ... 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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ebb8f62638c4257d8920213463a7c7aa653ea234096334de56befb5f756a2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ebb8f62638c4257d8920213463a7c7aa653ea234096334de56befb5f756a2db", kill_on_drop: false }`
[INFO] [stdout] 7ebb8f62638c4257d8920213463a7c7aa653ea234096334de56befb5f756a2db