[INFO] cloning repository https://github.com/lmy441900/urm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lmy441900/urm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmy441900%2Furm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmy441900%2Furm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e13660994d0ede29d50a3b1da6c54095e7c5f076
[INFO] checking lmy441900/urm against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmy441900%2Furm" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lmy441900/urm 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 git repo https://github.com/lmy441900/urm
[INFO] finished tweaking git repo https://github.com/lmy441900/urm
[INFO] tweaked toml for git repo https://github.com/lmy441900/urm written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/lmy441900/urm 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v1.0.3
[INFO] [stderr]   Downloaded data-encoding v2.2.0
[INFO] [stderr]   Downloaded fsevent-sys v2.0.1
[INFO] [stderr]   Downloaded filetime v0.2.9
[INFO] [stderr]   Downloaded bson v0.13.0
[INFO] [stderr]   Downloaded md-5 v0.7.0
[INFO] [stderr]   Downloaded pbkdf2 v0.2.3
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded sha2 v0.7.1
[INFO] [stderr]   Downloaded hmac v0.6.3
[INFO] [stderr]   Downloaded scan_fmt v0.1.3
[INFO] [stderr]   Downloaded crypto-mac v0.6.2
[INFO] [stderr]   Downloaded try_from v0.2.2
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded r2d2 v0.8.8
[INFO] [stderr]   Downloaded rocket_codegen v0.4.4
[INFO] [stderr]   Downloaded cookie v0.11.2
[INFO] [stderr]   Downloaded pest_generator v2.1.3
[INFO] [stderr]   Downloaded pest_meta v2.1.3
[INFO] [stderr]   Downloaded openssl v0.10.29
[INFO] [stderr]   Downloaded base64 v0.12.0
[INFO] [stderr]   Downloaded rocket_contrib v0.4.4
[INFO] [stderr]   Downloaded textnonce v0.6.5
[INFO] [stderr]   Downloaded mongodb v0.3.12
[INFO] [stderr]   Downloaded r2d2-mongodb v0.2.2
[INFO] [stderr]   Downloaded rust-argon2 v0.8.2
[INFO] [stderr]   Downloaded backtrace-sys v0.1.36
[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded rocket_http v0.4.4
[INFO] [stderr]   Downloaded rocket_contrib_codegen v0.4.4
[INFO] [stderr]   Downloaded rocket v0.4.4
[INFO] [stderr]   Downloaded sha-1 v0.7.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded hyper v0.10.16
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded serde_json v1.0.51
[INFO] [stderr]   Downloaded fsevent v0.4.0
[INFO] [stderr]   Downloaded inotify v0.7.0
[INFO] [stderr]   Downloaded notify v4.0.15
[INFO] [stderr]   Downloaded md5 v0.3.8
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded hex v0.3.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.55
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 182ca75301034bb8491f543d0d85c748ebb251fe995afdb659fa1c6b324153d8
[INFO] running `Command { std: "docker" "start" "-a" "182ca75301034bb8491f543d0d85c748ebb251fe995afdb659fa1c6b324153d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "182ca75301034bb8491f543d0d85c748ebb251fe995afdb659fa1c6b324153d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "182ca75301034bb8491f543d0d85c748ebb251fe995afdb659fa1c6b324153d8", kill_on_drop: false }`
[INFO] [stdout] 182ca75301034bb8491f543d0d85c748ebb251fe995afdb659fa1c6b324153d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4977f9bc1caa82e2e12157bed3f90bce187ef1fb79abf61f8f5cdf978d501ef0
[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" "4977f9bc1caa82e2e12157bed3f90bce187ef1fb79abf61f8f5cdf978d501ef0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking smallvec v1.3.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking separator v0.3.1
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/try_from-0.2.2/src/char.rs:46:28
[INFO] [stdout]     |
[INFO] [stdout] 46  |                 match u32::try_from(n)? {
[INFO] [stdout]     |                            ^^^^^^^^ multiple `try_from` found
[INFO] [stdout] ...
[INFO] [stdout] 58  | 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-0.2.2/src/lib.rs:11:5
[INFO] [stdout]     |
[INFO] [stdout] 11  |     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] 46  |                 match TryFrom::try_from(n)? {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 46  |                 match std::convert::TryFrom::try_from(n)? {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lazycell v1.2.1
[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] 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" "4977f9bc1caa82e2e12157bed3f90bce187ef1fb79abf61f8f5cdf978d501ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4977f9bc1caa82e2e12157bed3f90bce187ef1fb79abf61f8f5cdf978d501ef0", kill_on_drop: false }`
[INFO] [stdout] 4977f9bc1caa82e2e12157bed3f90bce187ef1fb79abf61f8f5cdf978d501ef0