[INFO] fetching crate dove 0.1.2...
[INFO] checking dove-0.1.2 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate dove 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dove 0.1.2 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dove 0.1.2
[INFO] finished tweaking crates.io crate dove 0.1.2
[INFO] tweaked toml for crates.io crate dove 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate dove 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded testcontainers v0.12.0
[INFO] [stderr]   Downloaded mio v0.7.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a6608a0bf053de8c218ff3015221d0c495511bf0eb3d284ffb2c87226fd91b8
[INFO] running `Command { std: "docker" "start" "-a" "6a6608a0bf053de8c218ff3015221d0c495511bf0eb3d284ffb2c87226fd91b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a6608a0bf053de8c218ff3015221d0c495511bf0eb3d284ffb2c87226fd91b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a6608a0bf053de8c218ff3015221d0c495511bf0eb3d284ffb2c87226fd91b8", kill_on_drop: false }`
[INFO] [stdout] 6a6608a0bf053de8c218ff3015221d0c495511bf0eb3d284ffb2c87226fd91b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8df332537ed904e6b954c96569a67958834faae0755f2ca4a0ffac0cbd099539
[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" "8df332537ed904e6b954c96569a67958834faae0755f2ca4a0ffac0cbd099539", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking tracing v0.1.24
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking mio v0.7.8
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking dove v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/types.rs:139:24
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 panic!(format!("Cannot convert value ref {:?}", v));
[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]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 panic!("Cannot convert value ref {:?}", v);
[INFO] [stdout]     |                       --                                --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking testcontainers v0.12.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.1
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/types.rs:139:24
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 panic!(format!("Cannot convert value ref {:?}", v));
[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]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 panic!("Cannot convert value ref {:?}", v);
[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 46.39s
[INFO] running `Command { std: "docker" "inspect" "8df332537ed904e6b954c96569a67958834faae0755f2ca4a0ffac0cbd099539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df332537ed904e6b954c96569a67958834faae0755f2ca4a0ffac0cbd099539", kill_on_drop: false }`
[INFO] [stdout] 8df332537ed904e6b954c96569a67958834faae0755f2ca4a0ffac0cbd099539