[INFO] fetching crate flate2-expose 1.0.25...
[INFO] checking flate2-expose-1.0.25 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate flate2-expose 1.0.25 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate flate2-expose 1.0.25 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flate2-expose 1.0.25
[INFO] finished tweaking crates.io crate flate2-expose 1.0.25
[INFO] tweaked toml for crates.io crate flate2-expose 1.0.25 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate flate2-expose 1.0.25 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.48
[INFO] [stderr]   Downloaded cloudflare-zlib-sys v0.3.0
[INFO] [stderr]   Downloaded libz-ng-sys v1.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26a03b3e4d53246c082f99d19d2bd9af5acd7a93a09a0aa9f77aec97321ebf3f
[INFO] running `Command { std: "docker" "start" "-a" "26a03b3e4d53246c082f99d19d2bd9af5acd7a93a09a0aa9f77aec97321ebf3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26a03b3e4d53246c082f99d19d2bd9af5acd7a93a09a0aa9f77aec97321ebf3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a03b3e4d53246c082f99d19d2bd9af5acd7a93a09a0aa9f77aec97321ebf3f", kill_on_drop: false }`
[INFO] [stdout] 26a03b3e4d53246c082f99d19d2bd9af5acd7a93a09a0aa9f77aec97321ebf3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb944e7909a535bb9a43cebfb0d9329d0e5159862427d2a4599f25f5a01ebd18
[INFO] running `Command { std: "docker" "start" "-a" "eb944e7909a535bb9a43cebfb0d9329d0e5159862427d2a4599f25f5a01ebd18", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking flate2-expose v1.0.25 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] error: the item `io` is imported redundantly
[INFO] [stdout]    --> src/gz/bufread.rs:704:9
[INFO] [stdout]     |
[INFO] [stdout] 703 |     use crate::gz::bufread::*;
[INFO] [stdout]     |         --------------------- the item `io` is already imported here
[INFO] [stdout] 704 |     use std::io;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `Read` is imported redundantly
[INFO] [stdout]    --> src/gz/bufread.rs:705:27
[INFO] [stdout]     |
[INFO] [stdout] 703 |     use crate::gz::bufread::*;
[INFO] [stdout]     |         --------------------- the item `Read` is already imported here
[INFO] [stdout] 704 |     use std::io;
[INFO] [stdout] 705 |     use std::io::{Cursor, Read, Write};
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `Write` is imported redundantly
[INFO] [stdout]    --> src/gz/bufread.rs:705:33
[INFO] [stdout]     |
[INFO] [stdout] 703 |     use crate::gz::bufread::*;
[INFO] [stdout]     |         --------------------- the item `Write` is already imported here
[INFO] [stdout] 704 |     use std::io;
[INFO] [stdout] 705 |     use std::io::{Cursor, Read, Write};
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flate2-expose` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "eb944e7909a535bb9a43cebfb0d9329d0e5159862427d2a4599f25f5a01ebd18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb944e7909a535bb9a43cebfb0d9329d0e5159862427d2a4599f25f5a01ebd18", kill_on_drop: false }`
[INFO] [stdout] eb944e7909a535bb9a43cebfb0d9329d0e5159862427d2a4599f25f5a01ebd18
[INFO] checking flate2-expose-1.0.25 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate flate2-expose 1.0.25 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate flate2-expose 1.0.25 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flate2-expose 1.0.25
[INFO] finished tweaking crates.io crate flate2-expose 1.0.25
[INFO] tweaked toml for crates.io crate flate2-expose 1.0.25 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate flate2-expose 1.0.25 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" "+09bc67b9158392361780e779d32997f14cc75c39" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69ad6b4a38cf17f2bd87b79e9552f54e4be6013969937f7ae296724a3266748b
[INFO] running `Command { std: "docker" "start" "-a" "69ad6b4a38cf17f2bd87b79e9552f54e4be6013969937f7ae296724a3266748b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69ad6b4a38cf17f2bd87b79e9552f54e4be6013969937f7ae296724a3266748b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ad6b4a38cf17f2bd87b79e9552f54e4be6013969937f7ae296724a3266748b", kill_on_drop: false }`
[INFO] [stdout] 69ad6b4a38cf17f2bd87b79e9552f54e4be6013969937f7ae296724a3266748b
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f282476581a0296a5660d639a11df814221858c8aafa956c061d43e40605d73d
[INFO] running `Command { std: "docker" "start" "-a" "f282476581a0296a5660d639a11df814221858c8aafa956c061d43e40605d73d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking flate2-expose v1.0.25 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] error: the item `io` is imported redundantly
[INFO] [stdout]    --> src/gz/bufread.rs:704:9
[INFO] [stdout]     |
[INFO] [stdout] 703 |     use crate::gz::bufread::*;
[INFO] [stdout]     |         --------------------- the item `io` is already imported here
[INFO] [stdout] 704 |     use std::io;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `Read` is imported redundantly
[INFO] [stdout]    --> src/gz/bufread.rs:705:27
[INFO] [stdout]     |
[INFO] [stdout] 703 |     use crate::gz::bufread::*;
[INFO] [stdout]     |         --------------------- the item `Read` is already imported here
[INFO] [stdout] 704 |     use std::io;
[INFO] [stdout] 705 |     use std::io::{Cursor, Read, Write};
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `Write` is imported redundantly
[INFO] [stdout]    --> src/gz/bufread.rs:705:33
[INFO] [stdout]     |
[INFO] [stdout] 703 |     use crate::gz::bufread::*;
[INFO] [stdout]     |         --------------------- the item `Write` is already imported here
[INFO] [stdout] 704 |     use std::io;
[INFO] [stdout] 705 |     use std::io::{Cursor, Read, Write};
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flate2-expose` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "f282476581a0296a5660d639a11df814221858c8aafa956c061d43e40605d73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f282476581a0296a5660d639a11df814221858c8aafa956c061d43e40605d73d", kill_on_drop: false }`
[INFO] [stdout] f282476581a0296a5660d639a11df814221858c8aafa956c061d43e40605d73d
