[INFO] cloning repository https://github.com/juicycleff/north
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juicycleff/north" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuicycleff%2Fnorth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuicycleff%2Fnorth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b564961e33665edd73c683b4a73c1eaa6592d207
[INFO] checking juicycleff/north against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuicycleff%2Fnorth" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/juicycleff/north on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/juicycleff/north
[INFO] finished tweaking git repo https://github.com/juicycleff/north
[INFO] tweaked toml for git repo https://github.com/juicycleff/north written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/juicycleff/north already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded httpdate v1.0.0
[INFO] [stderr]   Downloaded ordered-float v2.2.0
[INFO] [stderr]   Downloaded hyper v0.14.7
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d47c86b8061306f337a0a5aaa6d86b485552d872f0d94319597afbf2b8c7d0b0
[INFO] running `Command { std: "docker" "start" "-a" "d47c86b8061306f337a0a5aaa6d86b485552d872f0d94319597afbf2b8c7d0b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d47c86b8061306f337a0a5aaa6d86b485552d872f0d94319597afbf2b8c7d0b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47c86b8061306f337a0a5aaa6d86b485552d872f0d94319597afbf2b8c7d0b0", kill_on_drop: false }`
[INFO] [stdout] d47c86b8061306f337a0a5aaa6d86b485552d872f0d94319597afbf2b8c7d0b0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14fb6bbbc863600d56976001ed200574d1842d1a88c5a39aaed4aeb05cb610f3
[INFO] running `Command { std: "docker" "start" "-a" "14fb6bbbc863600d56976001ed200574d1842d1a88c5a39aaed4aeb05cb610f3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking httpdate v1.0.0
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking north-event-store v0.1.0 (/opt/rustwide/workdir/north-event-store)
[INFO] [stderr]     Checking north-cqrs v0.1.0 (/opt/rustwide/workdir/north-cqrs)
[INFO] [stderr]     Checking north-loadbalancer v0.1.0 (/opt/rustwide/workdir/north-loadbalancer)
[INFO] [stderr]     Checking north-service v0.1.0 (/opt/rustwide/workdir/north-service)
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking ordered-float v2.2.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking log4rs v1.0.0
[INFO] [stderr]     Checking north-common v0.1.0 (/opt/rustwide/workdir/north-common)
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking north-core v0.1.0 (/opt/rustwide/workdir/north-core)
[INFO] [stderr]     Checking north v0.1.0 (/opt/rustwide/workdir/north)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> north/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::task::SpawnExt`
[INFO] [stdout]  --> north/src/north.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::task::SpawnExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> north/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::task::SpawnExt`
[INFO] [stdout]  --> north/src/north.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::task::SpawnExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> north/src/north.rs:33:24
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub async fn start(mut self) {
[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]   --> north/src/north.rs:33:24
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub async fn start(mut self) {
[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]   --> north/src/service.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn handler(mut self) -> Self::Output {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> north/src/service.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn wrapper(mut self) -> Self::Output {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> north/src/service.rs:61:19
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn middleware(mut self) -> Self::Output {
[INFO] [stdout]    |                   ----^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> north/src/service.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn handler(mut self) -> Self::Output {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> north/src/service.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn wrapper(mut self) -> Self::Output {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> north/src/service.rs:61:19
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn middleware(mut self) -> Self::Output {
[INFO] [stdout]    |                   ----^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking example-basic v0.1.0 (/opt/rustwide/workdir/examples/basic)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/basic/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/basic/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.51s
[INFO] running `Command { std: "docker" "inspect" "14fb6bbbc863600d56976001ed200574d1842d1a88c5a39aaed4aeb05cb610f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14fb6bbbc863600d56976001ed200574d1842d1a88c5a39aaed4aeb05cb610f3", kill_on_drop: false }`
[INFO] [stdout] 14fb6bbbc863600d56976001ed200574d1842d1a88c5a39aaed4aeb05cb610f3