[INFO] cloning repository https://github.com/Svedrin/ruggers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Svedrin/ruggers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSvedrin%2Fruggers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSvedrin%2Fruggers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42748dc29770d5a2cc409a6c5bcd5f36cf5dba15
[INFO] checking Svedrin/ruggers against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSvedrin%2Fruggers" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Svedrin/ruggers on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Svedrin/ruggers
[INFO] finished tweaking git repo https://github.com/Svedrin/ruggers
[INFO] tweaked toml for git repo https://github.com/Svedrin/ruggers written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Svedrin/ruggers 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.3.1
[INFO] [stderr]   Downloaded serde_derive v1.0.37
[INFO] [stderr]   Downloaded serde v1.0.37
[INFO] [stderr]   Downloaded serde_derive_internals v0.23.0
[INFO] [stderr]   Downloaded quote v0.5.1
[INFO] [stderr]   Downloaded syn v0.13.1
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac0d7f1d7c9df51c42798e69072ea367984fa93f8d6074c35cfaa9467dbe4e56
[INFO] running `Command { std: "docker" "start" "-a" "ac0d7f1d7c9df51c42798e69072ea367984fa93f8d6074c35cfaa9467dbe4e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac0d7f1d7c9df51c42798e69072ea367984fa93f8d6074c35cfaa9467dbe4e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0d7f1d7c9df51c42798e69072ea367984fa93f8d6074c35cfaa9467dbe4e56", kill_on_drop: false }`
[INFO] [stdout] ac0d7f1d7c9df51c42798e69072ea367984fa93f8d6074c35cfaa9467dbe4e56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6d830232bf4609b30df6fcb4b5ba1aecfef1a5093ae252ac79b5f02256d0c92
[INFO] running `Command { std: "docker" "start" "-a" "a6d830232bf4609b30df6fcb4b5ba1aecfef1a5093ae252ac79b5f02256d0c92", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.3.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking serde v1.0.37
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking ruggers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/ruggers.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 | /             format!("Record Gen {:x} is too far in the future (we're {:x})",
[INFO] [stdout] 109 | |                     record.as_ref().birth_gen & GEN_MASK, next_gen.this_gen & GEN_MASK)
[INFO] [stdout]     | |_______________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` 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 `assert!()` 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] 108 ~             "Record Gen {:x} is too far in the future (we're {:x})",
[INFO] [stdout] 109 ~                     record.as_ref().birth_gen & GEN_MASK, next_gen.this_gen & GEN_MASK
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/ruggers.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 | /             format!("Record Gen {:x} is too far in the future (we're {:x})",
[INFO] [stdout] 109 | |                     record.as_ref().birth_gen & GEN_MASK, next_gen.this_gen & GEN_MASK)
[INFO] [stdout]     | |_______________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` 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 `assert!()` 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] 108 ~             "Record Gen {:x} is too far in the future (we're {:x})",
[INFO] [stdout] 109 ~                     record.as_ref().birth_gen & GEN_MASK, next_gen.this_gen & GEN_MASK
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a6d830232bf4609b30df6fcb4b5ba1aecfef1a5093ae252ac79b5f02256d0c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6d830232bf4609b30df6fcb4b5ba1aecfef1a5093ae252ac79b5f02256d0c92", kill_on_drop: false }`
[INFO] [stdout] a6d830232bf4609b30df6fcb4b5ba1aecfef1a5093ae252ac79b5f02256d0c92