[INFO] fetching crate transition 0.1.0...
[INFO] checking transition-0.1.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate transition 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate transition 0.1.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate transition 0.1.0
[INFO] finished tweaking crates.io crate transition 0.1.0
[INFO] tweaked toml for crates.io crate transition 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate transition 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-vec v0.6.2
[INFO] [stderr]   Downloaded libusb-sys v0.2.3
[INFO] [stderr]   Downloaded libusb v0.3.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.0
[INFO] [stderr]   Downloaded blinkrs v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 250b40852dfc41fd2633bc2e4e64290431b48c395a713d61a0d1712c8ea8f4af
[INFO] running `Command { std: "docker" "start" "-a" "250b40852dfc41fd2633bc2e4e64290431b48c395a713d61a0d1712c8ea8f4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "250b40852dfc41fd2633bc2e4e64290431b48c395a713d61a0d1712c8ea8f4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "250b40852dfc41fd2633bc2e4e64290431b48c395a713d61a0d1712c8ea8f4af", kill_on_drop: false }`
[INFO] [stdout] 250b40852dfc41fd2633bc2e4e64290431b48c395a713d61a0d1712c8ea8f4af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5dc9c80578dfb02fe6fca3b74c68dd5e80572f0e45514f2aabe3aeca25a63bd
[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" "a5dc9c80578dfb02fe6fca3b74c68dd5e80572f0e45514f2aabe3aeca25a63bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking blinkrs v1.0.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking transition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking version-sync v0.9.1
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]  --> tests/version-numbers.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     version_sync::assert_markdown_deps_updated!("README.md");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]   = note: this is no longer accepted in Rust 2021
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]  --> tests/version-numbers.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     version_sync::assert_html_root_url_updated!("src/lib.rs");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this is no longer accepted in Rust 2021
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.97s
[INFO] running `Command { std: "docker" "inspect" "a5dc9c80578dfb02fe6fca3b74c68dd5e80572f0e45514f2aabe3aeca25a63bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5dc9c80578dfb02fe6fca3b74c68dd5e80572f0e45514f2aabe3aeca25a63bd", kill_on_drop: false }`
[INFO] [stdout] a5dc9c80578dfb02fe6fca3b74c68dd5e80572f0e45514f2aabe3aeca25a63bd