[INFO] cloning repository https://github.com/FredericDesgreniers/rand_field
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredericDesgreniers/rand_field" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Frand_field", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Frand_field'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e141ec917949d537d77ba3d85502be3de5a2d4e9
[INFO] testing FredericDesgreniers/rand_field against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Frand_field" "/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/FredericDesgreniers/rand_field on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FredericDesgreniers/rand_field
[INFO] finished tweaking git repo https://github.com/FredericDesgreniers/rand_field
[INFO] tweaked toml for git repo https://github.com/FredericDesgreniers/rand_field written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FredericDesgreniers/rand_field already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 232b3d62432a4f4a77c5564fe31e3f57dad61497a2d933bebc7c6be30776b7c4
[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" "232b3d62432a4f4a77c5564fe31e3f57dad61497a2d933bebc7c6be30776b7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "232b3d62432a4f4a77c5564fe31e3f57dad61497a2d933bebc7c6be30776b7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232b3d62432a4f4a77c5564fe31e3f57dad61497a2d933bebc7c6be30776b7c4", kill_on_drop: false }`
[INFO] [stdout] 232b3d62432a4f4a77c5564fe31e3f57dad61497a2d933bebc7c6be30776b7c4
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 539533f79017d258b0ec1ae21bc59592f26bbf0e57edcfa1ac351a3da5962c5f
[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" "539533f79017d258b0ec1ae21bc59592f26bbf0e57edcfa1ac351a3da5962c5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling rand_field v0.1.0 (/opt/rustwide/workdir/rand_field)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> rand_field/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]    Compiling rand_field_derive v0.1.0 (/opt/rustwide/workdir/rand_field_derive)
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use syn::{Data, Field, Fields, Type};
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2::Punct`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::Punct;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling RandField v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(attr_literals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RandField` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rand_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.16s
[INFO] running `Command { std: "docker" "inspect" "539533f79017d258b0ec1ae21bc59592f26bbf0e57edcfa1ac351a3da5962c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539533f79017d258b0ec1ae21bc59592f26bbf0e57edcfa1ac351a3da5962c5f", kill_on_drop: false }`
[INFO] [stdout] 539533f79017d258b0ec1ae21bc59592f26bbf0e57edcfa1ac351a3da5962c5f
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", 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] 653a63ee1066b4225f7658d1611c231b1e5547edda9201864e3b62960f3a2915
[INFO] running `Command { std: "docker" "start" "-a" "653a63ee1066b4225f7658d1611c231b1e5547edda9201864e3b62960f3a2915", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> rand_field/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling RandField v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use syn::{Data, Field, Fields, Type};
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2::Punct`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::Punct;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[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]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(attr_literals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RandField` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rand_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "653a63ee1066b4225f7658d1611c231b1e5547edda9201864e3b62960f3a2915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "653a63ee1066b4225f7658d1611c231b1e5547edda9201864e3b62960f3a2915", kill_on_drop: false }`
[INFO] [stdout] 653a63ee1066b4225f7658d1611c231b1e5547edda9201864e3b62960f3a2915
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", 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] e5bd0fca1e5de9596e2ec11febd695d31567de66786e476542fb7309b3e0efeb
[INFO] running `Command { std: "docker" "start" "-a" "e5bd0fca1e5de9596e2ec11febd695d31567de66786e476542fb7309b3e0efeb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> rand_field/src/lib.rs:2:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 2 | use rand::Rng;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rand_field` (lib) generated 1 warning
[INFO] [stderr] warning: unused import: `Field`
[INFO] [stderr]   --> rand_field_derive/src/lib.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 | use syn::{Data, Field, Fields, Type};
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `proc_macro2::Punct`
[INFO] [stderr]   --> rand_field_derive/src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use proc_macro2::Punct;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> rand_field_derive/src/lib.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rand_field_derive` (lib) generated 3 warnings
[INFO] [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(attr_literals)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RandField` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rand_field`
[INFO] [stderr] 
[INFO] [stderr] warning: `RandField` (bin "RandField" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/RandField-08c56bd0e104ffc0)
[INFO] running `Command { std: "docker" "inspect" "e5bd0fca1e5de9596e2ec11febd695d31567de66786e476542fb7309b3e0efeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5bd0fca1e5de9596e2ec11febd695d31567de66786e476542fb7309b3e0efeb", kill_on_drop: false }`
[INFO] [stdout] e5bd0fca1e5de9596e2ec11febd695d31567de66786e476542fb7309b3e0efeb