[INFO] cloning repository https://github.com/LeoTindall/evolve-sbrain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeoTindall/evolve-sbrain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoTindall%2Fevolve-sbrain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoTindall%2Fevolve-sbrain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bda179d477a6210c201772481fc2ee3132970ba
[INFO] checking LeoTindall/evolve-sbrain against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoTindall%2Fevolve-sbrain" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeoTindall/evolve-sbrain on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LeoTindall/evolve-sbrain
[INFO] finished tweaking git repo https://github.com/LeoTindall/evolve-sbrain
[INFO] tweaked toml for git repo https://github.com/LeoTindall/evolve-sbrain written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/LeoTindall/evolve-sbrain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] cd77136ffc9e603c8ca18171a07963e7a8251ac8671539e151eb0d586ab510e8
[INFO] running `Command { std: "docker" "start" "-a" "cd77136ffc9e603c8ca18171a07963e7a8251ac8671539e151eb0d586ab510e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd77136ffc9e603c8ca18171a07963e7a8251ac8671539e151eb0d586ab510e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd77136ffc9e603c8ca18171a07963e7a8251ac8671539e151eb0d586ab510e8", kill_on_drop: false }`
[INFO] [stdout] cd77136ffc9e603c8ca18171a07963e7a8251ac8671539e151eb0d586ab510e8
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee4a4e0c53db7debecce1d60e618e34918e6042992a0a5ebecf5829cdc612a9b
[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" "ee4a4e0c53db7debecce1d60e618e34918e6042992a0a5ebecf5829cdc612a9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]    Compiling rayon-core v1.0.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking serde v1.0.2
[INFO] [stderr]     Checking sbrain v0.4.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking rayon v0.7.0
[INFO] [stderr]    Compiling serde_derive_internals v0.15.0
[INFO] [stderr]     Checking toml v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.2
[INFO] [stderr]     Checking evolve-sbrain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parameters.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Err(e) => {panic!(format!("Failed to open file {}: {}", filename.to_string_lossy(), 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]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parameters.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Err(e) => {panic!(format!("Failed to parse configuration file: {}", e))}
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parameters.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |           panic!(format!("Invalid configuration; number of inputs and outputs should match, but there are {} inputs and {} outputs.",
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 52 | |             config.inputs.len(), config.targets.len()))
[INFO] [stdout]    | |______________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parameters.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Err(e) => {panic!(format!("Failed to open file {}: {}", filename.to_string_lossy(), 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]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parameters.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Err(e) => {panic!(format!("Failed to parse configuration file: {}", e))}
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parameters.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |           panic!(format!("Invalid configuration; number of inputs and outputs should match, but there are {} inputs and {} outputs.",
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 52 | |             config.inputs.len(), config.targets.len()))
[INFO] [stdout]    | |______________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.08s
[INFO] running `Command { std: "docker" "inspect" "ee4a4e0c53db7debecce1d60e618e34918e6042992a0a5ebecf5829cdc612a9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4a4e0c53db7debecce1d60e618e34918e6042992a0a5ebecf5829cdc612a9b", kill_on_drop: false }`
[INFO] [stdout] ee4a4e0c53db7debecce1d60e618e34918e6042992a0a5ebecf5829cdc612a9b