[INFO] fetching crate assert2 0.3.5...
[INFO] checking assert2-0.3.5 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate assert2 0.3.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate assert2 0.3.5 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert2 0.3.5
[INFO] finished tweaking crates.io crate assert2 0.3.5
[INFO] tweaked toml for crates.io crate assert2 0.3.5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate assert2 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert2-macros v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f006f5c735c4445717b8a3b8ffe6bcf55d32d9350999263e10a2948cbf88f54a
[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" "f006f5c735c4445717b8a3b8ffe6bcf55d32d9350999263e10a2948cbf88f54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f006f5c735c4445717b8a3b8ffe6bcf55d32d9350999263e10a2948cbf88f54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f006f5c735c4445717b8a3b8ffe6bcf55d32d9350999263e10a2948cbf88f54a", kill_on_drop: false }`
[INFO] [stdout] f006f5c735c4445717b8a3b8ffe6bcf55d32d9350999263e10a2948cbf88f54a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 779d8a9769f30d9bbf3aaa46cec43cd6d90f8d5655b2f86ade99afd8a81a360b
[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" "779d8a9769f30d9bbf3aaa46cec43cd6d90f8d5655b2f86ade99afd8a81a360b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling assert2-macros v0.3.4
[INFO] [stderr]     Checking assert2 v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::os::raw::c_int`
[INFO] [stdout]  --> src/__assert2_impl/print.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::os::raw::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_int`
[INFO] [stdout]  --> src/__assert2_impl/print.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::os::raw::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 13.73s
[INFO] running `Command { std: "docker" "inspect" "779d8a9769f30d9bbf3aaa46cec43cd6d90f8d5655b2f86ade99afd8a81a360b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779d8a9769f30d9bbf3aaa46cec43cd6d90f8d5655b2f86ade99afd8a81a360b", kill_on_drop: false }`
[INFO] [stdout] 779d8a9769f30d9bbf3aaa46cec43cd6d90f8d5655b2f86ade99afd8a81a360b