[INFO] fetching crate mfa-cli 0.2.1...
[INFO] checking mfa-cli-0.2.1 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate mfa-cli 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mfa-cli 0.2.1 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mfa-cli 0.2.1
[INFO] finished tweaking crates.io crate mfa-cli 0.2.1
[INFO] tweaked toml for crates.io crate mfa-cli 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate mfa-cli 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d3e8e357dbff55b982dd97bfe7ff22c10c04ebaf6bd3a5a3aa7fc4eaafdcf29
[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" "4d3e8e357dbff55b982dd97bfe7ff22c10c04ebaf6bd3a5a3aa7fc4eaafdcf29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d3e8e357dbff55b982dd97bfe7ff22c10c04ebaf6bd3a5a3aa7fc4eaafdcf29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3e8e357dbff55b982dd97bfe7ff22c10c04ebaf6bd3a5a3aa7fc4eaafdcf29", kill_on_drop: false }`
[INFO] [stdout] 4d3e8e357dbff55b982dd97bfe7ff22c10c04ebaf6bd3a5a3aa7fc4eaafdcf29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efbc9fe0f3735e1dea9409dc771fbcc3e95fe48a8f97cf423dc338c8e70f9206
[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" "efbc9fe0f3735e1dea9409dc771fbcc3e95fe48a8f97cf423dc338c8e70f9206", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking generic-array v0.14.1
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking serde v1.0.110
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking mfa-cli v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:163:32
[INFO] [stdout]     |
[INFO] [stdout] 163 |             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] 163 |             Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 163 |             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/main.rs:163:32
[INFO] [stdout]     |
[INFO] [stdout] 163 |             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] 163 |             Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 163 |             Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.33s
[INFO] running `Command { std: "docker" "inspect" "efbc9fe0f3735e1dea9409dc771fbcc3e95fe48a8f97cf423dc338c8e70f9206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efbc9fe0f3735e1dea9409dc771fbcc3e95fe48a8f97cf423dc338c8e70f9206", kill_on_drop: false }`
[INFO] [stdout] efbc9fe0f3735e1dea9409dc771fbcc3e95fe48a8f97cf423dc338c8e70f9206