[INFO] cloning repository https://github.com/AutomatedTester/browser-manager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AutomatedTester/browser-manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAutomatedTester%2Fbrowser-manager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAutomatedTester%2Fbrowser-manager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8272d37b4316633f8121c0ac57e03f631dda4834
[INFO] checking AutomatedTester/browser-manager against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAutomatedTester%2Fbrowser-manager" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AutomatedTester/browser-manager on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/AutomatedTester/browser-manager
[INFO] finished tweaking git repo https://github.com/AutomatedTester/browser-manager
[INFO] tweaked toml for git repo https://github.com/AutomatedTester/browser-manager written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/AutomatedTester/browser-manager 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7825a31efc7e0f0601edde309dee58369cb9983f37520a6cc005152e47e43ea9
[INFO] running `Command { std: "docker" "start" "-a" "7825a31efc7e0f0601edde309dee58369cb9983f37520a6cc005152e47e43ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7825a31efc7e0f0601edde309dee58369cb9983f37520a6cc005152e47e43ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7825a31efc7e0f0601edde309dee58369cb9983f37520a6cc005152e47e43ea9", kill_on_drop: false }`
[INFO] [stdout] 7825a31efc7e0f0601edde309dee58369cb9983f37520a6cc005152e47e43ea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d72551f0ed9da61caf365b25f4daecce5319438ed8ea57b9f3742fa3307110d2
[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" "d72551f0ed9da61caf365b25f4daecce5319438ed8ea57b9f3742fa3307110d2", kill_on_drop: false }`
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.5.6
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking browser-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ZipArchive`, `read`
[INFO] [stdout]  --> src/browser.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use zip::{read, ZipArchive};
[INFO] [stdout]   |           ^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ZipArchive`, `read`
[INFO] [stdout]  --> src/browser.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use zip::{read, ZipArchive};
[INFO] [stdout]   |           ^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zip`
[INFO] [stdout]   --> src/browser.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut zip = zip::ZipArchive::new(zip_reader)?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_zip`
[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/browser.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut zip = zip::ZipArchive::new(zip_reader)?;
[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: struct is never constructed: `Browser`
[INFO] [stdout]  --> src/browser.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Browser {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/browser.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(name: String, driver_path: String, browser_path: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unpack_zip`
[INFO] [stdout]   --> src/browser.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn unpack_zip(&self, file: String) -> Result<bool, Error> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zip`
[INFO] [stdout]   --> src/browser.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut zip = zip::ZipArchive::new(zip_reader)?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_zip`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `con`
[INFO] [stdout]   --> src/browser.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |                     Ok(con) => Ok(file),
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_con`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/browser.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |                     Err(e) => panic!("Couldn't write to file")
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/browser.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             Err(e) => panic!("Error when creating file for test")
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/browser.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut zip = zip::ZipArchive::new(zip_reader)?;
[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/browser.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 let mut contents = file.write_all(b"Hello, world!");
[INFO] [stdout]    |                     ----^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/browser.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         create_file("cheese.txt".to_string());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.00s
[INFO] running `Command { std: "docker" "inspect" "d72551f0ed9da61caf365b25f4daecce5319438ed8ea57b9f3742fa3307110d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72551f0ed9da61caf365b25f4daecce5319438ed8ea57b9f3742fa3307110d2", kill_on_drop: false }`
[INFO] [stdout] d72551f0ed9da61caf365b25f4daecce5319438ed8ea57b9f3742fa3307110d2