[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 master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasyade%2Ftinyssh" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  84% (415/492)
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Updating files: 100% (492/492), done.
[INFO] validating manifest of git repo https://github.com/asyade/tinyssh on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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-7/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3e755029263dc6743b67122f078941cc5eaa41fc3cdde225aae75c306b423d0
[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" "c3e755029263dc6743b67122f078941cc5eaa41fc3cdde225aae75c306b423d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3e755029263dc6743b67122f078941cc5eaa41fc3cdde225aae75c306b423d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e755029263dc6743b67122f078941cc5eaa41fc3cdde225aae75c306b423d0", kill_on_drop: false }`
[INFO] [stdout] c3e755029263dc6743b67122f078941cc5eaa41fc3cdde225aae75c306b423d0
[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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d56b07777f593c2d54d8c5b4f1ad5e4ef851d2b6dfcb17c79f7d307d6a8262d1
[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" "d56b07777f593c2d54d8c5b4f1ad5e4ef851d2b6dfcb17c79f7d307d6a8262d1", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.16
[INFO] [stderr]     Checking byteorder v1.1.0
[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: 4 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.49s
[INFO] running `Command { std: "docker" "inspect" "d56b07777f593c2d54d8c5b4f1ad5e4ef851d2b6dfcb17c79f7d307d6a8262d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56b07777f593c2d54d8c5b4f1ad5e4ef851d2b6dfcb17c79f7d307d6a8262d1", kill_on_drop: false }`
[INFO] [stdout] d56b07777f593c2d54d8c5b4f1ad5e4ef851d2b6dfcb17c79f7d307d6a8262d1