[INFO] fetching crate ssandbox 0.1.0...
[INFO] checking ssandbox-0.1.0 against master#75dbd5b8c3e3e3e7673caa890422e654d39b815e for pr-95985
[INFO] extracting crate ssandbox 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ssandbox 0.1.0 on toolchain 75dbd5b8c3e3e3e7673caa890422e654d39b815e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ssandbox 0.1.0
[INFO] finished tweaking crates.io crate ssandbox 0.1.0
[INFO] tweaked toml for crates.io crate ssandbox 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ssandbox 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded once_cell v1.7.0
[INFO] [stderr]   Downloaded caps v0.5.1
[INFO] [stderr]   Downloaded cgroups-rs v0.2.3
[INFO] [stderr]   Downloaded libscmp v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b70a95db8c1d8d90cd3eaedc88220d92b01ab141832fc0ed1863dd6ae1dabd4b
[INFO] running `Command { std: "docker" "start" "-a" "b70a95db8c1d8d90cd3eaedc88220d92b01ab141832fc0ed1863dd6ae1dabd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b70a95db8c1d8d90cd3eaedc88220d92b01ab141832fc0ed1863dd6ae1dabd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b70a95db8c1d8d90cd3eaedc88220d92b01ab141832fc0ed1863dd6ae1dabd4b", kill_on_drop: false }`
[INFO] [stdout] b70a95db8c1d8d90cd3eaedc88220d92b01ab141832fc0ed1863dd6ae1dabd4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+75dbd5b8c3e3e3e7673caa890422e654d39b815e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0df74b819faa97526304db5a1a7e538512d0310618528ea5e7b0fbbc43115b0
[INFO] running `Command { std: "docker" "start" "-a" "d0df74b819faa97526304db5a1a7e538512d0310618528ea5e7b0fbbc43115b0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libscmp v0.1.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking cgroups-rs v0.2.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking caps v0.5.1
[INFO] [stderr]     Checking ssandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `error_code` and `additional_info` are never read
[INFO] [stdout]   --> src/container/error.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct EntryError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     error_code: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     additional_info: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EntryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error_code` and `additional_info` are never read
[INFO] [stdout]   --> src/container/error.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct EntryError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     error_code: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     additional_info: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EntryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.57s
[INFO] running `Command { std: "docker" "inspect" "d0df74b819faa97526304db5a1a7e538512d0310618528ea5e7b0fbbc43115b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0df74b819faa97526304db5a1a7e538512d0310618528ea5e7b0fbbc43115b0", kill_on_drop: false }`
[INFO] [stdout] d0df74b819faa97526304db5a1a7e538512d0310618528ea5e7b0fbbc43115b0