[INFO] cloning repository https://github.com/brooksmckinley/cups
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brooksmckinley/cups" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrooksmckinley%2Fcups", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrooksmckinley%2Fcups'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a6bf59431c0d3469d067182b32db459c07367d0
[INFO] checking brooksmckinley/cups against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrooksmckinley%2Fcups" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brooksmckinley/cups on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brooksmckinley/cups
[INFO] finished tweaking git repo https://github.com/brooksmckinley/cups
[INFO] tweaked toml for git repo https://github.com/brooksmckinley/cups written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/brooksmckinley/cups already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87b3c3b0cb34a76a9045aef1fffab9ff32a8454666b9f1567380e1140c45726c
[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" "87b3c3b0cb34a76a9045aef1fffab9ff32a8454666b9f1567380e1140c45726c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87b3c3b0cb34a76a9045aef1fffab9ff32a8454666b9f1567380e1140c45726c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b3c3b0cb34a76a9045aef1fffab9ff32a8454666b9f1567380e1140c45726c", kill_on_drop: false }`
[INFO] [stdout] 87b3c3b0cb34a76a9045aef1fffab9ff32a8454666b9f1567380e1140c45726c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 782b15d125eee081e0b6c3612642289d4f560f79854be93e0753408c6106b42a
[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" "782b15d125eee081e0b6c3612642289d4f560f79854be93e0753408c6106b42a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking cups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn buy(cups: &mut Vec<Box<Cup>>) {
[INFO] [stdout]    |                           ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn sell(cups: &mut Vec<Box<Cup>>) {
[INFO] [stdout]    |                            ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:111:35
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn maintenance(cups: &mut Vec<Box<Cup>>) {
[INFO] [stdout]     |                                   ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:229:36
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn inventory_report(cups: &Vec<Box<Cup>>) {
[INFO] [stdout]     |                                    ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:238:27
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut cups: Vec<Box<Cup>> = Vec::new();
[INFO] [stdout]     |                           ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn buy(cups: &mut Vec<Box<Cup>>) {
[INFO] [stdout]    |                           ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn sell(cups: &mut Vec<Box<Cup>>) {
[INFO] [stdout]    |                            ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:111:35
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn maintenance(cups: &mut Vec<Box<Cup>>) {
[INFO] [stdout]     |                                   ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:229:36
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn inventory_report(cups: &Vec<Box<Cup>>) {
[INFO] [stdout]     |                                    ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:238:27
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut cups: Vec<Box<Cup>> = Vec::new();
[INFO] [stdout]     |                           ^^^ help: use `dyn`: `dyn Cup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |             let mut i = 0;
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `Command { std: "docker" "inspect" "782b15d125eee081e0b6c3612642289d4f560f79854be93e0753408c6106b42a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "782b15d125eee081e0b6c3612642289d4f560f79854be93e0753408c6106b42a", kill_on_drop: false }`
[INFO] [stdout] 782b15d125eee081e0b6c3612642289d4f560f79854be93e0753408c6106b42a