[INFO] fetching crate tester 0.9.0...
[INFO] checking tester-0.9.0 against master#20d90b14ffe8c667757a70c08e2d9736ee89f493 for pr-110799
[INFO] extracting crate tester 0.9.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tester 0.9.0 on toolchain 20d90b14ffe8c667757a70c08e2d9736ee89f493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tester 0.9.0
[INFO] finished tweaking crates.io crate tester 0.9.0
[INFO] tweaked toml for crates.io crate tester 0.9.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90a1c259a6dd85de55db0a42a1ee3f6afde89302f40d209963d00e720d6f64b5
[INFO] running `Command { std: "docker" "start" "-a" "90a1c259a6dd85de55db0a42a1ee3f6afde89302f40d209963d00e720d6f64b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90a1c259a6dd85de55db0a42a1ee3f6afde89302f40d209963d00e720d6f64b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a1c259a6dd85de55db0a42a1ee3f6afde89302f40d209963d00e720d6f64b5", kill_on_drop: false }`
[INFO] [stdout] 90a1c259a6dd85de55db0a42a1ee3f6afde89302f40d209963d00e720d6f64b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2f75255f3571459eb37208adef890c8ed718e33477765e6aaf16d6fe7908a2f
[INFO] running `Command { std: "docker" "start" "-a" "f2f75255f3571459eb37208adef890c8ed718e33477765e6aaf16d6fe7908a2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking tester v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/tests.rs:202:16
[INFO] [stdout]     |
[INFO] [stdout] 202 |         panic!(1i32);
[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: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 202 |         panic!("{}", 1i32);
[INFO] [stdout]     |                +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 202 |         std::panic::panic_any(1i32);
[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 1.02s
[INFO] running `Command { std: "docker" "inspect" "f2f75255f3571459eb37208adef890c8ed718e33477765e6aaf16d6fe7908a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2f75255f3571459eb37208adef890c8ed718e33477765e6aaf16d6fe7908a2f", kill_on_drop: false }`
[INFO] [stdout] f2f75255f3571459eb37208adef890c8ed718e33477765e6aaf16d6fe7908a2f