[INFO] fetching crate flat-tree 5.0.0... [INFO] checking flat-tree-5.0.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] extracting crate flat-tree 5.0.0 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate flat-tree 5.0.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate flat-tree 5.0.0 [INFO] finished tweaking crates.io crate flat-tree 5.0.0 [INFO] tweaked toml for crates.io crate flat-tree 5.0.0 written to /workspace/builds/worker-10/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e500255d7c3dd1a18b08a4ad8c801b29c4c68d346dd78830562b497c53f4f5f1 [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" "e500255d7c3dd1a18b08a4ad8c801b29c4c68d346dd78830562b497c53f4f5f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e500255d7c3dd1a18b08a4ad8c801b29c4c68d346dd78830562b497c53f4f5f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e500255d7c3dd1a18b08a4ad8c801b29c4c68d346dd78830562b497c53f4f5f1", kill_on_drop: false }` [INFO] [stdout] e500255d7c3dd1a18b08a4ad8c801b29c4c68d346dd78830562b497c53f4f5f1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] eb5199ef2c5110cdd3e45f047ca649f29542b20deb1d6afb24093f9c1f7fadce [INFO] running `Command { std: "docker" "start" "-a" "eb5199ef2c5110cdd3e45f047ca649f29542b20deb1d6afb24093f9c1f7fadce", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking flat-tree v5.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking crossbeam-utils v0.8.5 [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/iterator.rs:262:5 [INFO] [stdout] | [INFO] [stdout] 262 | ((1 << 30) * (1 << (n - 30))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:287:5 [INFO] [stdout] | [INFO] [stdout] 287 | / format!( [INFO] [stdout] 288 | | "You can only look up roots for depth 0 blocks, got index {}", [INFO] [stdout] 289 | | i [INFO] [stdout] 290 | | ) [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the assert!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 287 | [INFO] [stdout] 288 | "You can only look up roots for depth 0 blocks, got index {}", [INFO] [stdout] 289 | i [INFO] [stdout] 290 | [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/iterator.rs:262:5 [INFO] [stdout] | [INFO] [stdout] 262 | ((1 << 30) * (1 << (n - 30))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:287:5 [INFO] [stdout] | [INFO] [stdout] 287 | / format!( [INFO] [stdout] 288 | | "You can only look up roots for depth 0 blocks, got index {}", [INFO] [stdout] 289 | | i [INFO] [stdout] 290 | | ) [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the assert!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 287 | [INFO] [stdout] 288 | "You can only look up roots for depth 0 blocks, got index {}", [INFO] [stdout] 289 | i [INFO] [stdout] 290 | [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 50.62s [INFO] running `Command { std: "docker" "inspect" "eb5199ef2c5110cdd3e45f047ca649f29542b20deb1d6afb24093f9c1f7fadce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb5199ef2c5110cdd3e45f047ca649f29542b20deb1d6afb24093f9c1f7fadce", kill_on_drop: false }` [INFO] [stdout] eb5199ef2c5110cdd3e45f047ca649f29542b20deb1d6afb24093f9c1f7fadce