[INFO] cloning repository https://github.com/asyade/tinyssh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asyade/tinyssh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasyade%2Ftinyssh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasyade%2Ftinyssh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56ddf05b4ccf9e70acacd5b2e8312b744eb257cd
[INFO] checking asyade/tinyssh against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasyade%2Ftinyssh" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  50% (249/492)   
Checking out files:  51% (251/492)   
Checking out files:  52% (256/492)   
Checking out files:  53% (261/492)   
Checking out files:  54% (266/492)   
Checking out files:  55% (271/492)   
Checking out files:  56% (276/492)   
Checking out files:  57% (281/492)   
Checking out files:  58% (286/492)   
Checking out files:  59% (291/492)   
Checking out files:  60% (296/492)   
Checking out files:  61% (301/492)   
Checking out files:  62% (306/492)   
Checking out files:  63% (310/492)   
Checking out files:  64% (315/492)   
Checking out files:  65% (320/492)   
Checking out files:  66% (325/492)   
Checking out files:  67% (330/492)   
Checking out files:  68% (335/492)   
Checking out files:  69% (340/492)   
Checking out files:  70% (345/492)   
Checking out files:  71% (350/492)   
Checking out files:  72% (355/492)   
Checking out files:  73% (360/492)   
Checking out files:  74% (365/492)   
Checking out files:  75% (369/492)   
Checking out files:  76% (374/492)   
Checking out files:  77% (379/492)   
Checking out files:  78% (384/492)   
Checking out files:  79% (389/492)   
Checking out files:  80% (394/492)   
Checking out files:  81% (399/492)   
Checking out files:  82% (404/492)   
Checking out files:  83% (409/492)   
Checking out files:  84% (414/492)   
Checking out files:  85% (419/492)   
Checking out files:  86% (424/492)   
Checking out files:  87% (429/492)   
Checking out files:  88% (433/492)   
Checking out files:  88% (437/492)   
Checking out files:  89% (438/492)   
Checking out files:  90% (443/492)   
Checking out files:  91% (448/492)   
Checking out files:  92% (453/492)   
Checking out files:  93% (458/492)   
Checking out files:  94% (463/492)   
Checking out files:  95% (468/492)   
Checking out files:  96% (473/492)   
Checking out files:  97% (478/492)   
Checking out files:  98% (483/492)   
Checking out files:  99% (488/492)   
Checking out files: 100% (492/492)   
Checking out files: 100% (492/492), done.
[INFO] validating manifest of git repo https://github.com/asyade/tinyssh 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/asyade/tinyssh
[INFO] finished tweaking git repo https://github.com/asyade/tinyssh
[INFO] tweaked toml for git repo https://github.com/asyade/tinyssh written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/asyade/tinyssh 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded byteorder v1.1.0
[INFO] [stderr]   Downloaded serde_derive_internals v0.16.0
[INFO] [stderr]   Downloaded serde_derive v1.0.16
[INFO] [stderr]   Downloaded serde v1.0.16
[INFO] [stderr]   Downloaded serde_json v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 79e95898a51dd2ac0ada60ffe7dc714042ac1ea37ef877a6e62451aac7e0019e
[INFO] running `Command { std: "docker" "start" "-a" "79e95898a51dd2ac0ada60ffe7dc714042ac1ea37ef877a6e62451aac7e0019e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79e95898a51dd2ac0ada60ffe7dc714042ac1ea37ef877a6e62451aac7e0019e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79e95898a51dd2ac0ada60ffe7dc714042ac1ea37ef877a6e62451aac7e0019e", kill_on_drop: false }`
[INFO] [stdout] 79e95898a51dd2ac0ada60ffe7dc714042ac1ea37ef877a6e62451aac7e0019e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6ac2567ba92cc56ac4d3f2d9d4c0e9420cb63b02b793dc827b91ef992fcff1cf
[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" "6ac2567ba92cc56ac4d3f2d9d4c0e9420cb63b02b793dc827b91ef992fcff1cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking serde v1.0.16
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.16
[INFO] [stderr]     Checking serde_json v1.0.4
[INFO] [stderr]     Checking tinyssh v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]  --> src/server_handlers.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::remove_file;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]  --> src/server_handlers.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::remove_file;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/server.rs:17:54
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn        server_check_identification(client: &mut Client, msg: MessageContainer) -> bool {
[INFO] [stdout]    |                                                            ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IdentificationFailure`
[INFO] [stdout]  --> src/messages.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IdentificationFailure = 3
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `usage`
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn    usage() {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/server.rs:17:54
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn        server_check_identification(client: &mut Client, msg: MessageContainer) -> bool {
[INFO] [stdout]    |                                                            ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IdentificationFailure`
[INFO] [stdout]  --> src/messages.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IdentificationFailure = 3
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `usage`
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn    usage() {
[INFO] [stdout]    |       ^^^^^
[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 13.47s
[INFO] running `Command { std: "docker" "inspect" "6ac2567ba92cc56ac4d3f2d9d4c0e9420cb63b02b793dc827b91ef992fcff1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ac2567ba92cc56ac4d3f2d9d4c0e9420cb63b02b793dc827b91ef992fcff1cf", kill_on_drop: false }`
[INFO] [stdout] 6ac2567ba92cc56ac4d3f2d9d4c0e9420cb63b02b793dc827b91ef992fcff1cf