[INFO] cloning repository https://github.com/davidbarsky/trace-prototype [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidbarsky/trace-prototype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ftrace-prototype", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ftrace-prototype'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b14cbdf110c04525d9516a718e4b8b0449b9bfdb [INFO] testing davidbarsky/trace-prototype against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ftrace-prototype" "/workspace/builds/worker-76/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/davidbarsky/trace-prototype on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/davidbarsky/trace-prototype [INFO] finished tweaking git repo https://github.com/davidbarsky/trace-prototype [INFO] tweaked toml for git repo https://github.com/davidbarsky/trace-prototype written to /workspace/builds/worker-76/source/Cargo.toml [INFO] crate git repo https://github.com/davidbarsky/trace-prototype already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lock_api v0.1.3 [INFO] [stderr] Downloaded parking_lot v0.6.3 [INFO] [stderr] Downloaded crossbeam-channel v0.2.4 [INFO] [stderr] Downloaded cc v1.0.22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f528b4560172a1573437311daff086a8800aab4d997d7ef2b0f86e01f1ed5f4 [INFO] running `Command { std: "docker" "start" "-a" "8f528b4560172a1573437311daff086a8800aab4d997d7ef2b0f86e01f1ed5f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f528b4560172a1573437311daff086a8800aab4d997d7ef2b0f86e01f1ed5f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f528b4560172a1573437311daff086a8800aab4d997d7ef2b0f86e01f1ed5f4", kill_on_drop: false }` [INFO] [stdout] 8f528b4560172a1573437311daff086a8800aab4d997d7ef2b0f86e01f1ed5f4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef0c2c692604bffb53ecc350473f177d917499579d08f7d172ff47030c6f57f7 [INFO] running `Command { std: "docker" "start" "-a" "ef0c2c692604bffb53ecc350473f177d917499579d08f7d172ff47030c6f57f7", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling proc-macro2 v0.4.13 [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling cfg-if v0.1.5 [INFO] [stderr] Compiling cc v1.0.22 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling nodrop v0.1.12 [INFO] [stderr] Compiling memoffset v0.2.1 [INFO] [stderr] Compiling crossbeam-utils v0.5.0 [INFO] [stderr] Compiling failure_derive v0.1.2 [INFO] [stderr] Compiling rand_core v0.2.1 [INFO] [stderr] Compiling rustc-demangle v0.1.9 [INFO] [stderr] Compiling owning_ref v0.3.3 [INFO] [stderr] Compiling arrayvec v0.4.7 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.5 [INFO] [stderr] Compiling lock_api v0.1.3 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Compiling rand v0.4.3 [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling backtrace-sys v0.1.24 [INFO] [stderr] Compiling crossbeam-epoch v0.5.2 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling crossbeam-deque v0.5.2 [INFO] [stderr] Compiling parking_lot_core v0.2.14 [INFO] [stderr] Compiling parking_lot v0.6.3 [INFO] [stderr] Compiling synstructure v0.9.0 [INFO] [stderr] Compiling crossbeam-channel v0.2.4 [INFO] [stderr] Compiling crossbeam v0.4.1 [INFO] [stderr] Compiling backtrace v0.3.9 [INFO] [stderr] Compiling failure v0.1.2 [INFO] [stderr] Compiling trace-prototype v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `channel` [INFO] [stdout] --> src/main.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `queue` [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | queue: SegQueue, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `channels` [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | channels: Channels, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | fn new(queue: SegQueue, channels: Channels) -> Self { [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 13.86s [INFO] running `Command { std: "docker" "inspect" "ef0c2c692604bffb53ecc350473f177d917499579d08f7d172ff47030c6f57f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef0c2c692604bffb53ecc350473f177d917499579d08f7d172ff47030c6f57f7", kill_on_drop: false }` [INFO] [stdout] ef0c2c692604bffb53ecc350473f177d917499579d08f7d172ff47030c6f57f7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cda050dc9b9ab2132d1bafd058936bc0dd1d0a62fe665345f7e898e38d7fd752 [INFO] running `Command { std: "docker" "start" "-a" "cda050dc9b9ab2132d1bafd058936bc0dd1d0a62fe665345f7e898e38d7fd752", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] Compiling trace-prototype v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `channel` [INFO] [stdout] --> src/main.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `queue` [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | queue: SegQueue, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `channels` [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | channels: Channels, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | fn new(queue: SegQueue, channels: Channels) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `Command { std: "docker" "inspect" "cda050dc9b9ab2132d1bafd058936bc0dd1d0a62fe665345f7e898e38d7fd752", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cda050dc9b9ab2132d1bafd058936bc0dd1d0a62fe665345f7e898e38d7fd752", kill_on_drop: false }` [INFO] [stdout] cda050dc9b9ab2132d1bafd058936bc0dd1d0a62fe665345f7e898e38d7fd752 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 321a2f5df47f4b68d9a5d2546e09ed4f8e88210f405ee4069d9f959b2d3c380b [INFO] running `Command { std: "docker" "start" "-a" "321a2f5df47f4b68d9a5d2546e09ed4f8e88210f405ee4069d9f959b2d3c380b", kill_on_drop: false }` [INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature. [INFO] [stderr] warning: unused import: `channel` [INFO] [stderr] --> src/main.rs:15:17 [INFO] [stderr] | [INFO] [stderr] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `queue` [INFO] [stderr] --> src/main.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | queue: SegQueue, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `channels` [INFO] [stderr] --> src/main.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | channels: Channels, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/main.rs:43:8 [INFO] [stderr] | [INFO] [stderr] 43 | fn new(queue: SegQueue, channels: Channels) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `trace-prototype` (bin "trace-prototype" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/trace_prototype-3f683e0ac42bd51d) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "321a2f5df47f4b68d9a5d2546e09ed4f8e88210f405ee4069d9f959b2d3c380b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "321a2f5df47f4b68d9a5d2546e09ed4f8e88210f405ee4069d9f959b2d3c380b", kill_on_drop: false }` [INFO] [stdout] 321a2f5df47f4b68d9a5d2546e09ed4f8e88210f405ee4069d9f959b2d3c380b