[INFO] cloning repository https://github.com/gburtini/Babys-First-Rust-Project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gburtini/Babys-First-Rust-Project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgburtini%2FBabys-First-Rust-Project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgburtini%2FBabys-First-Rust-Project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56aa3946b7a25ca5972774ca88d07a5acb069db1
[INFO] checking gburtini/Babys-First-Rust-Project against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgburtini%2FBabys-First-Rust-Project" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gburtini/Babys-First-Rust-Project 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 git repo https://github.com/gburtini/Babys-First-Rust-Project
[INFO] finished tweaking git repo https://github.com/gburtini/Babys-First-Rust-Project
[INFO] tweaked toml for git repo https://github.com/gburtini/Babys-First-Rust-Project written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/gburtini/Babys-First-Rust-Project 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded libnotify-sys v1.0.2
[INFO] [stderr]   Downloaded libnotify v1.0.3
[INFO] [stderr]   Downloaded mockall v0.5.1
[INFO] [stderr]   Downloaded mockall_derive v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 176cbce4f2a5fc9e428cd0599e1ede5765b012a3b607d9f67188ecfc003caadb
[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" "176cbce4f2a5fc9e428cd0599e1ede5765b012a3b607d9f67188ecfc003caadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "176cbce4f2a5fc9e428cd0599e1ede5765b012a3b607d9f67188ecfc003caadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176cbce4f2a5fc9e428cd0599e1ede5765b012a3b607d9f67188ecfc003caadb", kill_on_drop: false }`
[INFO] [stdout] 176cbce4f2a5fc9e428cd0599e1ede5765b012a3b607d9f67188ecfc003caadb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fa770a64f2ce80fc4c84cde0273e34d4ae344d4fa61a2d06c851ecd1aab205b
[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" "9fa770a64f2ce80fc4c84cde0273e34d4ae344d4fa61a2d06c851ecd1aab205b", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling libnotify-sys v1.0.2
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking glib v0.4.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking publicsuffix v1.5.3
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking libnotify v1.0.3
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling mockall_derive v0.5.1
[INFO] [stderr]     Checking mockall v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking reqwest v0.9.20
[INFO] [stderr]     Checking is_up v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/commands/mutators.rs:14:26
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Err(e) => panic!(e),
[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] 14 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/commands/mutators.rs:31:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[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] 31 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/commands/mutators.rs:14:26
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Err(e) => panic!(e),
[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] 14 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/commands/mutators.rs:31:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[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] 31 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 31 |         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 [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "9fa770a64f2ce80fc4c84cde0273e34d4ae344d4fa61a2d06c851ecd1aab205b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa770a64f2ce80fc4c84cde0273e34d4ae344d4fa61a2d06c851ecd1aab205b", kill_on_drop: false }`
[INFO] [stdout] 9fa770a64f2ce80fc4c84cde0273e34d4ae344d4fa61a2d06c851ecd1aab205b