[INFO] cloning repository https://github.com/tindleaj/simple-ci
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tindleaj/simple-ci" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftindleaj%2Fsimple-ci", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftindleaj%2Fsimple-ci'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4795d3126da4df6abc1a765526b07f8f970ea8bf
[INFO] checking tindleaj/simple-ci against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftindleaj%2Fsimple-ci" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tindleaj/simple-ci on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tindleaj/simple-ci
[INFO] removed workspace from git repo https://github.com/tindleaj/simple-ci
[INFO] finished tweaking git repo https://github.com/tindleaj/simple-ci
[INFO] tweaked toml for git repo https://github.com/tindleaj/simple-ci written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tindleaj/simple-ci already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] c529944e8234c42638290658a6f236c8b8903028cd0c8eff6156adb9e4e8881d
[INFO] running `Command { std: "docker" "start" "-a" "c529944e8234c42638290658a6f236c8b8903028cd0c8eff6156adb9e4e8881d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c529944e8234c42638290658a6f236c8b8903028cd0c8eff6156adb9e4e8881d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c529944e8234c42638290658a6f236c8b8903028cd0c8eff6156adb9e4e8881d", kill_on_drop: false }`
[INFO] [stdout] c529944e8234c42638290658a6f236c8b8903028cd0c8eff6156adb9e4e8881d
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 77da67ee8e0ac6d6e95990a85dfde19f8886d6dd33dd8ff13ff2b49a15ee4ead
[INFO] running `Command { std: "docker" "start" "-a" "77da67ee8e0ac6d6e95990a85dfde19f8886d6dd33dd8ff13ff2b49a15ee4ead", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking ci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> observer/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> observer/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `commit_id`
[INFO] [stdout]    --> dispatcher/src/dispatcher.rs:101:37
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 Request::Dispatch { commit_id } => {}
[INFO] [stdout]     |                                     ^^^^^^^^^ help: try ignoring the field: `commit_id: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `poll`
[INFO] [stdout]  --> observer/src/observer.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn poll(repo: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_repo`
[INFO] [stdout]   --> observer/src/observer.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn update_repo(repo: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_newest_commit_id`
[INFO] [stdout]   --> observer/src/observer.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn get_newest_commit_id(repo: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> observer/src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     observer::notify();
[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: function is never used: `poll`
[INFO] [stdout]  --> observer/src/observer.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn poll(repo: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_repo`
[INFO] [stdout]   --> observer/src/observer.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn update_repo(repo: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_newest_commit_id`
[INFO] [stdout]   --> observer/src/observer.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn get_newest_commit_id(repo: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> observer/src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     observer::notify();
[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: variant is never constructed: `Ok`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Ok,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReceivedDispatch`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ReceivedDispatch(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Err`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Err,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `runners`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     runners: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dead`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     dead: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dispatched_commits`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     dispatched_commits: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pending_commits`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pending_commits: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `commit_id`
[INFO] [stdout]    --> dispatcher/src/dispatcher.rs:101:37
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 Request::Dispatch { commit_id } => {}
[INFO] [stdout]     |                                     ^^^^^^^^^ help: try ignoring the field: `commit_id: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Ok,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReceivedDispatch`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ReceivedDispatch(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Err`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Err,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `runners`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     runners: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dead`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     dead: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dispatched_commits`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     dispatched_commits: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pending_commits`
[INFO] [stdout]   --> dispatcher/src/dispatcher.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pending_commits: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.01s
[INFO] running `Command { std: "docker" "inspect" "77da67ee8e0ac6d6e95990a85dfde19f8886d6dd33dd8ff13ff2b49a15ee4ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77da67ee8e0ac6d6e95990a85dfde19f8886d6dd33dd8ff13ff2b49a15ee4ead", kill_on_drop: false }`
[INFO] [stdout] 77da67ee8e0ac6d6e95990a85dfde19f8886d6dd33dd8ff13ff2b49a15ee4ead