[INFO] cloning repository https://github.com/salpalvv/observers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/salpalvv/observers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalpalvv%2Fobservers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalpalvv%2Fobservers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4f7b37c3c1c29662396162f6feb6698de9b07f0
[INFO] checking salpalvv/observers against try#f3d95de532264a1215023baa665c0028aecf74b1 for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalpalvv%2Fobservers" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/salpalvv/observers
[INFO] finished tweaking git repo https://github.com/salpalvv/observers
[INFO] tweaked toml for git repo https://github.com/salpalvv/observers written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/salpalvv/observers on toolchain f3d95de532264a1215023baa665c0028aecf74b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/salpalvv/observers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking salpalvv/observers against try#f3d95de532264a1215023baa665c0028aecf74b1 for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsalpalvv%2Fobservers" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/salpalvv/observers
[INFO] finished tweaking git repo https://github.com/salpalvv/observers
[INFO] tweaked toml for git repo https://github.com/salpalvv/observers written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/salpalvv/observers on toolchain f3d95de532264a1215023baa665c0028aecf74b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/salpalvv/observers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f190a8c9c27f394062b8c4db38fc8ebe49e11f76237793ab6b7c0f10ec10306
[INFO] running `Command { std: "docker" "start" "-a" "2f190a8c9c27f394062b8c4db38fc8ebe49e11f76237793ab6b7c0f10ec10306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f190a8c9c27f394062b8c4db38fc8ebe49e11f76237793ab6b7c0f10ec10306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f190a8c9c27f394062b8c4db38fc8ebe49e11f76237793ab6b7c0f10ec10306", kill_on_drop: false }`
[INFO] [stdout] 2f190a8c9c27f394062b8c4db38fc8ebe49e11f76237793ab6b7c0f10ec10306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b916189fe767cea46c573ce97f29fe946a244ff68a909625447b18640b1445ca
[INFO] running `Command { std: "docker" "start" "-a" "b916189fe767cea46c573ce97f29fe946a244ff68a909625447b18640b1445ca", kill_on_drop: false }`
[INFO] [stderr]     Checking observer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::observer::*`
[INFO] [stdout]  --> src/subject.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::observer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::observer::*`
[INFO] [stdout]  --> src/subject.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::observer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::observer::*`
[INFO] [stdout]  --> src/traits.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::observer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::observer::*`
[INFO] [stdout]  --> src/traits.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::observer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_listener` is never used
[INFO] [stdout]   --> src/traits.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub trait Subject<'a, T: Observer> {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout]  9 |     fn add_listener(&mut self, observer: &'a mut T);
[INFO] [stdout] 10 |     fn remove_listener(&mut self, observer: &'a mut T);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_listener` is never used
[INFO] [stdout]   --> src/traits.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait RadiusSubject<'a, T: RadiusObserver> {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] 30 |     fn add_listener(&mut self, observer: &'a mut T);
[INFO] [stdout] 31 |     fn remove_listener(&mut self, observer: &'a mut T);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_notify` is never used
[INFO] [stdout]   --> src/traits.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub trait AssociatedTypeObserver {
[INFO] [stdout]    |           ---------------------- method in this trait
[INFO] [stdout] 50 |     type Notification;
[INFO] [stdout] 51 |     fn on_notify(&mut self, _: &mut Self::Notification){}
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `notify_observers` and `notify_observers_mut` are never used
[INFO] [stdout]   --> src/traits.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub trait AssociatedTypeSubject {
[INFO] [stdout]    |           --------------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn notify_observers(&self, _: Option<&mut Self::Notification>){}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 62 |     fn notify_observers_mut(&mut self, _: Option<&mut Self::Notification>) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_listener` is never used
[INFO] [stdout]   --> src/traits.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub trait Subject<'a, T: Observer> {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout]  9 |     fn add_listener(&mut self, observer: &'a mut T);
[INFO] [stdout] 10 |     fn remove_listener(&mut self, observer: &'a mut T);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_listener` is never used
[INFO] [stdout]   --> src/traits.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait RadiusSubject<'a, T: RadiusObserver> {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] 30 |     fn add_listener(&mut self, observer: &'a mut T);
[INFO] [stdout] 31 |     fn remove_listener(&mut self, observer: &'a mut T);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_notify` is never used
[INFO] [stdout]   --> src/traits.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub trait AssociatedTypeObserver {
[INFO] [stdout]    |           ---------------------- method in this trait
[INFO] [stdout] 50 |     type Notification;
[INFO] [stdout] 51 |     fn on_notify(&mut self, _: &mut Self::Notification){}
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `notify_observers` and `notify_observers_mut` are never used
[INFO] [stdout]   --> src/traits.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub trait AssociatedTypeSubject {
[INFO] [stdout]    |           --------------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn notify_observers(&self, _: Option<&mut Self::Notification>){}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 62 |     fn notify_observers_mut(&mut self, _: Option<&mut Self::Notification>) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "b916189fe767cea46c573ce97f29fe946a244ff68a909625447b18640b1445ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b916189fe767cea46c573ce97f29fe946a244ff68a909625447b18640b1445ca", kill_on_drop: false }`
[INFO] [stdout] b916189fe767cea46c573ce97f29fe946a244ff68a909625447b18640b1445ca