[INFO] cloning repository https://github.com/ToastyMod/sampsort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ToastyMod/sampsort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToastyMod%2Fsampsort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToastyMod%2Fsampsort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd97458d6eae50d75aa7b5f97b6a078575dee7e0
[INFO] checking ToastyMod/sampsort against try#5fdfba63a96c5e8ae0ebf6b8b66853110277087d for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToastyMod%2Fsampsort" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  61% (111/181)   
Checking out files:  62% (113/181)   
Checking out files:  63% (115/181)   
Checking out files:  64% (116/181)   
Checking out files:  65% (118/181)   
Checking out files:  66% (120/181)   
Checking out files:  67% (122/181)   
Checking out files:  68% (124/181)   
Checking out files:  69% (125/181)   
Checking out files:  70% (127/181)   
Checking out files:  71% (129/181)   
Checking out files:  72% (131/181)   
Checking out files:  73% (133/181)   
Checking out files:  74% (134/181)   
Checking out files:  75% (136/181)   
Checking out files:  76% (138/181)   
Checking out files:  77% (140/181)   
Checking out files:  78% (142/181)   
Checking out files:  79% (143/181)   
Checking out files:  80% (145/181)   
Checking out files:  81% (147/181)   
Checking out files:  82% (149/181)   
Checking out files:  83% (151/181)   
Checking out files:  84% (153/181)   
Checking out files:  85% (154/181)   
Checking out files:  86% (156/181)   
Checking out files:  87% (158/181)   
Checking out files:  88% (160/181)   
Checking out files:  89% (162/181)   
Checking out files:  90% (163/181)   
Checking out files:  91% (165/181)   
Checking out files:  92% (167/181)   
Checking out files:  93% (169/181)   
Checking out files:  94% (171/181)   
Checking out files:  95% (172/181)   
Checking out files:  96% (174/181)   
Checking out files:  97% (176/181)   
Checking out files:  98% (178/181)   
Checking out files:  99% (180/181)   
Checking out files: 100% (181/181)   
Checking out files: 100% (181/181), done.
[INFO] validating manifest of git repo https://github.com/ToastyMod/sampsort on toolchain 5fdfba63a96c5e8ae0ebf6b8b66853110277087d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ToastyMod/sampsort
[INFO] finished tweaking git repo https://github.com/ToastyMod/sampsort
[INFO] tweaked toml for git repo https://github.com/ToastyMod/sampsort written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ToastyMod/sampsort already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd76f0e4272ef929c0fd307d6a1849df0a1b4d716577c306d948d686617621ca
[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" "cd76f0e4272ef929c0fd307d6a1849df0a1b4d716577c306d948d686617621ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd76f0e4272ef929c0fd307d6a1849df0a1b4d716577c306d948d686617621ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd76f0e4272ef929c0fd307d6a1849df0a1b4d716577c306d948d686617621ca", kill_on_drop: false }`
[INFO] [stdout] cd76f0e4272ef929c0fd307d6a1849df0a1b4d716577c306d948d686617621ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 195c6c33d1834994d0af443ef626663812da3ec5f3e5c1bec24efc50298732a1
[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" "195c6c33d1834994d0af443ef626663812da3ec5f3e5c1bec24efc50298732a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]    Compiling webview-sys v0.3.3
[INFO] [stderr]     Checking web-view v0.5.4
[INFO] [stderr]     Checking sampsort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ReadDir`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::{ReadDir, File};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ReadDir`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::{ReadDir, File};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prefs`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut prefs = File::create("./prefs.conf").unwrap();
[INFO] [stdout]   |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prefs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prefs`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut prefs = File::create("./prefs.conf").unwrap();
[INFO] [stdout]   |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prefs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut prefs = File::create("./prefs.conf").unwrap();
[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:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut prefs = File::create("./prefs.conf").unwrap();
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.14s
[INFO] running `Command { std: "docker" "inspect" "195c6c33d1834994d0af443ef626663812da3ec5f3e5c1bec24efc50298732a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195c6c33d1834994d0af443ef626663812da3ec5f3e5c1bec24efc50298732a1", kill_on_drop: false }`
[INFO] [stdout] 195c6c33d1834994d0af443ef626663812da3ec5f3e5c1bec24efc50298732a1