[INFO] cloning repository https://github.com/AlexanderThaller/salt-compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexanderThaller/salt-compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexanderThaller%2Fsalt-compressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexanderThaller%2Fsalt-compressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 677d0e80ac5011d8d9e93c427bb11ef4e5678efb
[INFO] checking AlexanderThaller/salt-compressor against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexanderThaller%2Fsalt-compressor" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlexanderThaller/salt-compressor on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlexanderThaller/salt-compressor
[INFO] finished tweaking git repo https://github.com/AlexanderThaller/salt-compressor
[INFO] tweaked toml for git repo https://github.com/AlexanderThaller/salt-compressor written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AlexanderThaller/salt-compressor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.50
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded itoa v0.4.5
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded hermit-abi v0.1.10
[INFO] [stderr]   Downloaded ryu v1.0.3
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded libc v0.2.68
[INFO] [stderr]   Downloaded clap v2.33.0
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded log v0.4.8
[INFO] [stderr]   Downloaded serde v1.0.105
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded loggerv v0.7.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d9a8c981dfb50aa773ab3780afeb9ef1016746e3600139515b410d629d93100
[INFO] running `Command { std: "docker" "start" "-a" "1d9a8c981dfb50aa773ab3780afeb9ef1016746e3600139515b410d629d93100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d9a8c981dfb50aa773ab3780afeb9ef1016746e3600139515b410d629d93100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9a8c981dfb50aa773ab3780afeb9ef1016746e3600139515b410d629d93100", kill_on_drop: false }`
[INFO] [stdout] 1d9a8c981dfb50aa773ab3780afeb9ef1016746e3600139515b410d629d93100
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0357c9a9867e3bba22e357f6a19834d0bcbd940111b55a5b395f1658ff869292
[INFO] running `Command { std: "docker" "start" "-a" "0357c9a9867e3bba22e357f6a19834d0bcbd940111b55a5b395f1658ff869292", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking loggerv v0.7.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking salt-compressor v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests.rs:35:30
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Err(e) => panic!(format!("{}", e)),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 35 -             Err(e) => panic!(format!("{}", e)),
[INFO] [stdout] 35 +             Err(e) => panic!("{}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/tests.rs:152:30
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Err(e) => panic!(e),
[INFO] [stdout]     |                              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Err(e) => panic!("{}", e),
[INFO] [stdout]     |                              +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Err(e) => std::panic::panic_any(e),
[INFO] [stdout]     |                       ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "0357c9a9867e3bba22e357f6a19834d0bcbd940111b55a5b395f1658ff869292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0357c9a9867e3bba22e357f6a19834d0bcbd940111b55a5b395f1658ff869292", kill_on_drop: false }`
[INFO] [stdout] 0357c9a9867e3bba22e357f6a19834d0bcbd940111b55a5b395f1658ff869292