[INFO] fetching crate confiner 0.2.1...
[INFO] checking confiner-0.2.1 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate confiner 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate confiner 0.2.1
[INFO] finished tweaking crates.io crate confiner 0.2.1
[INFO] tweaked toml for crates.io crate confiner 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate confiner 0.2.1 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2255c9df2dcfa98fc95d5ddb60a63dfc91c380c3ba868ee9295e1f2aa08f799
[INFO] running `Command { std: "docker" "start" "-a" "c2255c9df2dcfa98fc95d5ddb60a63dfc91c380c3ba868ee9295e1f2aa08f799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2255c9df2dcfa98fc95d5ddb60a63dfc91c380c3ba868ee9295e1f2aa08f799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2255c9df2dcfa98fc95d5ddb60a63dfc91c380c3ba868ee9295e1f2aa08f799", kill_on_drop: false }`
[INFO] [stdout] c2255c9df2dcfa98fc95d5ddb60a63dfc91c380c3ba868ee9295e1f2aa08f799
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34a634b3700c51e50f11335332ce99eb3a11f73201c4c16177f3a09b7a302a07
[INFO] running `Command { std: "docker" "start" "-a" "34a634b3700c51e50f11335332ce99eb3a11f73201c4c16177f3a09b7a302a07", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling peg-runtime v0.8.5
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling peg-macros v0.8.5
[INFO] [stderr]     Checking peg v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking confiner v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `confiner_grammar::block`
[INFO] [stdout]    --> src/grammar.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 | pub use confiner_grammar::block;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `confiner_grammar::expr`
[INFO] [stdout]    --> src/grammar.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 | pub use confiner_grammar::expr;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Deserialize`
[INFO] [stdout]    --> src/deser.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |     use serde::Deserialize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.28s
[INFO] running `Command { std: "docker" "inspect" "34a634b3700c51e50f11335332ce99eb3a11f73201c4c16177f3a09b7a302a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a634b3700c51e50f11335332ce99eb3a11f73201c4c16177f3a09b7a302a07", kill_on_drop: false }`
[INFO] [stdout] 34a634b3700c51e50f11335332ce99eb3a11f73201c4c16177f3a09b7a302a07