[INFO] fetching crate indextree 4.3.1...
[INFO] checking indextree-4.3.1 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate indextree 4.3.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate indextree 4.3.1 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate indextree 4.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate indextree 4.3.1
[INFO] tweaked toml for crates.io crate indextree 4.3.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate indextree 4.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.115
[INFO] [stderr]   Downloaded hermit-abi v0.1.15
[INFO] [stderr]   Downloaded proc-macro2 v1.0.20
[INFO] [stderr]   Downloaded rayon v1.4.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.3
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded either v1.6.0
[INFO] [stderr]   Downloaded syn v1.0.39
[INFO] [stderr]   Downloaded memoffset v0.5.5
[INFO] [stderr]   Downloaded serde v1.0.115
[INFO] [stderr]   Downloaded rayon-core v1.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43b894929a7f600d48c67e1019f1bdc6f799ae65925395a103f044f3236c4aaa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43b894929a7f600d48c67e1019f1bdc6f799ae65925395a103f044f3236c4aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43b894929a7f600d48c67e1019f1bdc6f799ae65925395a103f044f3236c4aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b894929a7f600d48c67e1019f1bdc6f799ae65925395a103f044f3236c4aaa", kill_on_drop: false }`
[INFO] [stdout] 43b894929a7f600d48c67e1019f1bdc6f799ae65925395a103f044f3236c4aaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] b887dcc1ea9e13a8470c9bc379222a31ddb92ebcee89772aa4928c98fa168df6
[INFO] running `Command { std: "docker" "start" "-a" "b887dcc1ea9e13a8470c9bc379222a31ddb92ebcee89772aa4928c98fa168df6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking indextree v4.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/lib.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b887dcc1ea9e13a8470c9bc379222a31ddb92ebcee89772aa4928c98fa168df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b887dcc1ea9e13a8470c9bc379222a31ddb92ebcee89772aa4928c98fa168df6", kill_on_drop: false }`
[INFO] [stdout] b887dcc1ea9e13a8470c9bc379222a31ddb92ebcee89772aa4928c98fa168df6