[INFO] fetching crate followfile 0.2.1... [INFO] checking followfile-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate followfile 0.2.1 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate followfile 0.2.1 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate followfile 0.2.1 [INFO] tweaked toml for crates.io crate followfile 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate followfile 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate followfile 0.2.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7ba64346d96aebe2a327559c59a3e49d37030ac67bbe85ba8186cddeba6aeab6 [INFO] running `Command { std: "docker" "start" "-a" "7ba64346d96aebe2a327559c59a3e49d37030ac67bbe85ba8186cddeba6aeab6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ba64346d96aebe2a327559c59a3e49d37030ac67bbe85ba8186cddeba6aeab6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ba64346d96aebe2a327559c59a3e49d37030ac67bbe85ba8186cddeba6aeab6", kill_on_drop: false }` [INFO] [stdout] 7ba64346d96aebe2a327559c59a3e49d37030ac67bbe85ba8186cddeba6aeab6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3073a88924c9b26f07b701e476154f65f25a2adf9fa49b7935519d011978ef4f [INFO] running `Command { std: "docker" "start" "-a" "3073a88924c9b26f07b701e476154f65f25a2adf9fa49b7935519d011978ef4f", kill_on_drop: false }` [INFO] [stderr] Checking followfile v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/lib.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{self}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `inner`, `option`, and `watcher` are never read [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct FollowFile { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 8 | inner: R, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | option: FollowOptions, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 10 | watcher: Pin>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/lib.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{self}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `inner`, `option`, and `watcher` are never read [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct FollowFile { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 8 | inner: R, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | option: FollowOptions, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 10 | watcher: Pin>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `Command { std: "docker" "inspect" "3073a88924c9b26f07b701e476154f65f25a2adf9fa49b7935519d011978ef4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3073a88924c9b26f07b701e476154f65f25a2adf9fa49b7935519d011978ef4f", kill_on_drop: false }` [INFO] [stdout] 3073a88924c9b26f07b701e476154f65f25a2adf9fa49b7935519d011978ef4f