[INFO] cloning repository https://github.com/FredericDesgreniers/comp353_gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredericDesgreniers/comp353_gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Fcomp353_gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Fcomp353_gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9916d59810824119c5d2ebf332300695d71fd4cb
[INFO] testing FredericDesgreniers/comp353_gen against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Fcomp353_gen" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FredericDesgreniers/comp353_gen on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FredericDesgreniers/comp353_gen
[INFO] finished tweaking git repo https://github.com/FredericDesgreniers/comp353_gen
[INFO] tweaked toml for git repo https://github.com/FredericDesgreniers/comp353_gen written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/FredericDesgreniers/comp353_gen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e581c4d3997bf57dd508e3311fcdb50bc545dfad24003946253be2c9b85ef31d
[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" "e581c4d3997bf57dd508e3311fcdb50bc545dfad24003946253be2c9b85ef31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e581c4d3997bf57dd508e3311fcdb50bc545dfad24003946253be2c9b85ef31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e581c4d3997bf57dd508e3311fcdb50bc545dfad24003946253be2c9b85ef31d", kill_on_drop: false }`
[INFO] [stdout] e581c4d3997bf57dd508e3311fcdb50bc545dfad24003946253be2c9b85ef31d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81071fddca55c311b1bda00d30cf95da3c9920e22cdb7f079bd4d0119b536c9d
[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" "81071fddca55c311b1bda00d30cf95da3c9920e22cdb7f079bd4d0119b536c9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling lazy_static v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling rand_field v0.1.0 (https://github.com/FredericDesgreniers/rand_field/#3b5e232d)
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling rand_field_derive v0.1.0 (https://github.com/FredericDesgreniers/rand_field/#3b5e232d)
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling generator v0.1.0 (/opt/rustwide/workdir/generator)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> generator/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(attr_literals, nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> generator/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::Error`
[INFO] [stdout]  --> generator/src/streams/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use failure::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> generator/src/streams/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Formatter`
[INFO] [stdout]  --> generator/src/streams/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::Formatter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> generator/src/streams/mod.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |             if let Some(name) = self.buffer.drain((0..1)).nth(0) {
[INFO] [stdout]    |                                                   ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 -             if let Some(name) = self.buffer.drain((0..1)).nth(0) {
[INFO] [stdout] 45 +             if let Some(name) = self.buffer.drain(0..1).nth(0) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::ThreadRng`
[INFO] [stdout]  --> generator/src/models/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::ThreadRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::ThreadRng`
[INFO] [stdout]   --> generator/src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use rand::ThreadRng;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `models::client::ContractType`
[INFO] [stdout]   --> generator/src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use models::client::ContractType;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> generator/src/lib.rs:133:2
[INFO] [stdout]     |
[INFO] [stdout] 133 |     (start..rand::thread_rng().gen_range(range.start, range.end))
[INFO] [stdout]     |     ^                                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 133 -     (start..rand::thread_rng().gen_range(range.start, range.end))
[INFO] [stdout] 133 +     start..rand::thread_rng().gen_range(range.start, range.end)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> generator/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(attr_literals, nll)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generator` due to 2 previous errors; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "81071fddca55c311b1bda00d30cf95da3c9920e22cdb7f079bd4d0119b536c9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81071fddca55c311b1bda00d30cf95da3c9920e22cdb7f079bd4d0119b536c9d", kill_on_drop: false }`
[INFO] [stdout] 81071fddca55c311b1bda00d30cf95da3c9920e22cdb7f079bd4d0119b536c9d