[INFO] fetching crate fexr 0.1.0...
[INFO] checking fexr-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate fexr 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fexr 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fexr 0.1.0
[INFO] finished tweaking crates.io crate fexr 0.1.0
[INFO] tweaked toml for crates.io crate fexr 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate fexr 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] a45569abfcf2f0b537f4f62327f778effdb56ce2dba2c8f9849aadc9c058a775
[INFO] running `Command { std: "docker" "start" "-a" "a45569abfcf2f0b537f4f62327f778effdb56ce2dba2c8f9849aadc9c058a775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a45569abfcf2f0b537f4f62327f778effdb56ce2dba2c8f9849aadc9c058a775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a45569abfcf2f0b537f4f62327f778effdb56ce2dba2c8f9849aadc9c058a775", kill_on_drop: false }`
[INFO] [stdout] a45569abfcf2f0b537f4f62327f778effdb56ce2dba2c8f9849aadc9c058a775
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3f51972d325a7cbde28ccc34850b45508dee6ca9bee910a7e95f65d59d7536a
[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" "b3f51972d325a7cbde28ccc34850b45508dee6ca9bee910a7e95f65d59d7536a", kill_on_drop: false }`
[INFO] [stderr]     Checking fexr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FMS_URL`
[INFO] [stdout]  --> src/client.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const FMS_URL: &str = "https://management.getfexr.com/fcrs/";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FCRS_URL`
[INFO] [stdout]  --> src/client.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const FCRS_URL: &str = "https://management.getfexr.com/fcrs/";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FABS_URL`
[INFO] [stdout]  --> src/client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const FABS_URL: &str = "https://management.getfexr.com/fcrs/";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FexrRestClient`
[INFO] [stdout]  --> src/client.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct FexrRestClient {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FMS_URL`
[INFO] [stdout]  --> src/client.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const FMS_URL: &str = "https://management.getfexr.com/fcrs/";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FCRS_URL`
[INFO] [stdout]  --> src/client.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const FCRS_URL: &str = "https://management.getfexr.com/fcrs/";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FABS_URL`
[INFO] [stdout]  --> src/client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const FABS_URL: &str = "https://management.getfexr.com/fcrs/";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FexrRestClient`
[INFO] [stdout]  --> src/client.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct FexrRestClient {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "b3f51972d325a7cbde28ccc34850b45508dee6ca9bee910a7e95f65d59d7536a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f51972d325a7cbde28ccc34850b45508dee6ca9bee910a7e95f65d59d7536a", kill_on_drop: false }`
[INFO] [stdout] b3f51972d325a7cbde28ccc34850b45508dee6ca9bee910a7e95f65d59d7536a