[INFO] fetching crate boltchat 0.2.2...
[INFO] checking boltchat-0.2.2 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate boltchat 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate boltchat 0.2.2 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate boltchat 0.2.2
[INFO] finished tweaking crates.io crate boltchat 0.2.2
[INFO] tweaked toml for crates.io crate boltchat 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate boltchat 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ripemd160 v0.9.1
[INFO] [stderr]   Downloaded circular v0.3.0
[INFO] [stderr]   Downloaded block-modes v0.6.1
[INFO] [stderr]   Downloaded blowfish v0.6.0
[INFO] [stderr]   Downloaded num-bigint-dig v0.6.1
[INFO] [stderr]   Downloaded cfb-mode v0.5.0
[INFO] [stderr]   Downloaded des v0.5.0
[INFO] [stderr]   Downloaded pgp v0.7.1
[INFO] [stderr]   Downloaded twofish v0.4.0
[INFO] [stderr]   Downloaded cast5 v0.8.0
[INFO] [stderr]   Downloaded crc24 v0.1.6
[INFO] [stderr]   Downloaded clear_on_drop v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 499eb149fb28779aa91d9508f9bb5ba1e64e3121762618f27f2519559e44159e
[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" "499eb149fb28779aa91d9508f9bb5ba1e64e3121762618f27f2519559e44159e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "499eb149fb28779aa91d9508f9bb5ba1e64e3121762618f27f2519559e44159e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499eb149fb28779aa91d9508f9bb5ba1e64e3121762618f27f2519559e44159e", kill_on_drop: false }`
[INFO] [stdout] 499eb149fb28779aa91d9508f9bb5ba1e64e3121762618f27f2519559e44159e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d64e404c677028f6b664a0ba1c1159bda840c9309220c0ebbb8b5679d509604a
[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" "d64e404c677028f6b664a0ba1c1159bda840c9309220c0ebbb8b5679d509604a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking adler v1.0.1
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking signature v1.3.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling crc24 v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking circular v0.3.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-bigint-dig v0.6.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking typenum v1.12.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/try_from-0.3.2/src/char.rs:56:28
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 match u32::try_from(n)? {
[INFO] [stdout]     |                            ^^^^^^^^ multiple `try_from` found
[INFO] [stdout] ...
[INFO] [stdout] 68  | impl_int_to_char!(i8, i16, i32, i64, isize, u16, u32, u64, usize);
[INFO] [stdout]     | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in the trait `TryFrom`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/try_from-0.3.2/src/lib.rs:21:5
[INFO] [stdout]     |
[INFO] [stdout] 21  |     fn try_from(T) -> Result<Self, Self::Err>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: candidate #2 is defined in the trait `std::convert::TryFrom`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 match TryFrom::try_from(n)? {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 match std::convert::TryFrom::try_from(n)? {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr] error: could not compile `try_from`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d64e404c677028f6b664a0ba1c1159bda840c9309220c0ebbb8b5679d509604a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64e404c677028f6b664a0ba1c1159bda840c9309220c0ebbb8b5679d509604a", kill_on_drop: false }`
[INFO] [stdout] d64e404c677028f6b664a0ba1c1159bda840c9309220c0ebbb8b5679d509604a