[INFO] cloning repository https://github.com/jdmichaud/integ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jdmichaud/integ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Finteg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Finteg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1003d19dd0724e408f677e941eeb08d5edf6e5a6
[INFO] testing jdmichaud/integ against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Finteg" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jdmichaud/integ on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jdmichaud/integ
[INFO] finished tweaking git repo https://github.com/jdmichaud/integ
[INFO] tweaked toml for git repo https://github.com/jdmichaud/integ written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jdmichaud/integ already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 669022d96f251602ff9dbfa02aa99e1cc1999c5af750f41e052eebc1e59514e8
[INFO] running `Command { std: "docker" "start" "-a" "669022d96f251602ff9dbfa02aa99e1cc1999c5af750f41e052eebc1e59514e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "669022d96f251602ff9dbfa02aa99e1cc1999c5af750f41e052eebc1e59514e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "669022d96f251602ff9dbfa02aa99e1cc1999c5af750f41e052eebc1e59514e8", kill_on_drop: false }`
[INFO] [stdout] 669022d96f251602ff9dbfa02aa99e1cc1999c5af750f41e052eebc1e59514e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b99db55be1b7c02e99d77e3afb15629eccd24fa9f0ace5563d3f39bb2d15e9f5
[INFO] running `Command { std: "docker" "start" "-a" "b99db55be1b7c02e99d77e3afb15629eccd24fa9f0ace5563d3f39bb2d15e9f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling integ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "b99db55be1b7c02e99d77e3afb15629eccd24fa9f0ace5563d3f39bb2d15e9f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b99db55be1b7c02e99d77e3afb15629eccd24fa9f0ace5563d3f39bb2d15e9f5", kill_on_drop: false }`
[INFO] [stdout] b99db55be1b7c02e99d77e3afb15629eccd24fa9f0ace5563d3f39bb2d15e9f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1af3da02fcf3e5a071f3eea3a3e7be78bf92af7879159b1416aa16f12f63aa7
[INFO] running `Command { std: "docker" "start" "-a" "a1af3da02fcf3e5a071f3eea3a3e7be78bf92af7879159b1416aa16f12f63aa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling integ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `asynchronous`
[INFO] [stdout]   --> examples/git.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn asynchronous() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `all`
[INFO] [stdout]  --> examples/arr-to-res.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn all<T, E>(results: Vec<Result<T, E>>) -> Result<Vec<T>, E> {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Observer`
[INFO] [stdout]  --> examples/observable.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Observer<T, E> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]   --> examples/observable.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     error: Box<dyn Fn(E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subscribe_observer`
[INFO] [stdout]   --> examples/observable.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn subscribe_observer(&self, observer: Observer<T, E>) -> Subscription {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_package`
[INFO] [stdout]   --> examples/json.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn load_package(pjson: &str) -> Package {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_config`
[INFO] [stdout]   --> examples/yaml.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn load_config(config_yaml: &str) -> Config {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "a1af3da02fcf3e5a071f3eea3a3e7be78bf92af7879159b1416aa16f12f63aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1af3da02fcf3e5a071f3eea3a3e7be78bf92af7879159b1416aa16f12f63aa7", kill_on_drop: false }`
[INFO] [stdout] a1af3da02fcf3e5a071f3eea3a3e7be78bf92af7879159b1416aa16f12f63aa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47c4d3825afd1cdb60daea5783337bf5602a429e058d9215554e2229e3c44967
[INFO] running `Command { std: "docker" "start" "-a" "47c4d3825afd1cdb60daea5783337bf5602a429e058d9215554e2229e3c44967", 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] [stdout] 
[INFO] [stderr] warning: function is never used: `load_package`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> examples/json.rs:12:4
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 12 | fn load_package(pjson: &str) -> Package {
[INFO] [stdout] 
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Observer`
[INFO] [stderr]  --> examples/observable.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Observer<T, E> {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `error`
[INFO] [stderr]   --> examples/observable.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     error: Box<dyn Fn(E)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `subscribe_observer`
[INFO] [stderr]   --> examples/observable.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn subscribe_observer(&self, observer: Observer<T, E>) -> Subscription {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `asynchronous`
[INFO] [stderr]   --> examples/git.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn asynchronous() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `all`
[INFO] [stderr]  --> examples/arr-to-res.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn all<T, E>(results: Vec<Result<T, E>>) -> Result<Vec<T>, E> {
[INFO] [stderr]   |    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_config`
[INFO] [stderr]   --> examples/yaml.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn load_config(config_yaml: &str) -> Config {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `integ` (example "json") generated 1 warning
[INFO] [stderr] warning: `integ` (example "observable") generated 3 warnings
[INFO] [stderr] warning: `integ` (example "git") generated 1 warning
[INFO] [stderr] warning: `integ` (example "arr-to-res") generated 1 warning
[INFO] [stderr] warning: `integ` (example "yaml") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.33s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/integ-cc0102cc7ba40f1b)
[INFO] running `Command { std: "docker" "inspect" "47c4d3825afd1cdb60daea5783337bf5602a429e058d9215554e2229e3c44967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c4d3825afd1cdb60daea5783337bf5602a429e058d9215554e2229e3c44967", kill_on_drop: false }`
[INFO] [stdout] 47c4d3825afd1cdb60daea5783337bf5602a429e058d9215554e2229e3c44967