[INFO] fetching crate smt2 0.2.0...
[INFO] checking smt2-0.2.0 against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] extracting crate smt2 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate smt2 0.2.0
[INFO] finished tweaking crates.io crate smt2 0.2.0
[INFO] tweaked toml for crates.io crate smt2 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smt2 0.2.0 on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 547769bf11c4e9f24900493321e19d43323e4fa15b3c5878d8743106ef7a799f
[INFO] running `Command { std: "docker" "start" "-a" "547769bf11c4e9f24900493321e19d43323e4fa15b3c5878d8743106ef7a799f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547769bf11c4e9f24900493321e19d43323e4fa15b3c5878d8743106ef7a799f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547769bf11c4e9f24900493321e19d43323e4fa15b3c5878d8743106ef7a799f", kill_on_drop: false }`
[INFO] [stdout] 547769bf11c4e9f24900493321e19d43323e4fa15b3c5878d8743106ef7a799f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c86fec43155bf3fb0b68263455898639e53f81212f2a7013adf09bf2bd70b139
[INFO] running `Command { std: "docker" "start" "-a" "c86fec43155bf3fb0b68263455898639e53f81212f2a7013adf09bf2bd70b139", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking utf8-decode v1.0.1
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking source-span v2.7.0
[INFO] [stderr]     Checking smt2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/client/internal.rs:240:11
[INFO] [stdout]     |
[INFO] [stdout] 240 |         self.id.fmt(f)
[INFO] [stdout]     |                 ^^^ multiple `fmt` found
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in an impl of the trait `Debug` for the type `ident::Ident`
[INFO] [stdout]    --> src/client/ident.rs:4:38
[INFO] [stdout]     |
[INFO] [stdout]   4 | #[derive(Clone, PartialEq, Eq, Hash, Debug)]
[INFO] [stdout]     |                                      ^^^^^
[INFO] [stdout] note: candidate #2 is defined in an impl of the trait `std::fmt::Display` for the type `ident::Ident`
[INFO] [stdout]    --> src/client/ident.rs:54:2
[INFO] [stdout]     |
[INFO] [stdout]  54 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 240 -         self.id.fmt(f)
[INFO] [stdout] 240 +         Debug::fmt(&self.id, f)
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 240 -         self.id.fmt(f)
[INFO] [stdout] 240 +         std::fmt::Display::fmt(&self.id, f)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/client/internal.rs:240:11
[INFO] [stdout]     |
[INFO] [stdout] 240 |         self.id.fmt(f)
[INFO] [stdout]     |                 ^^^ multiple `fmt` found
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in an impl of the trait `Debug` for the type `ident::Ident`
[INFO] [stdout]    --> src/client/ident.rs:4:38
[INFO] [stdout]     |
[INFO] [stdout]   4 | #[derive(Clone, PartialEq, Eq, Hash, Debug)]
[INFO] [stdout]     |                                      ^^^^^
[INFO] [stdout] note: candidate #2 is defined in an impl of the trait `std::fmt::Display` for the type `ident::Ident`
[INFO] [stdout]    --> src/client/ident.rs:54:2
[INFO] [stdout]     |
[INFO] [stdout]  54 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 240 -         self.id.fmt(f)
[INFO] [stdout] 240 +         Debug::fmt(&self.id, f)
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 240 -         self.id.fmt(f)
[INFO] [stdout] 240 +         std::fmt::Display::fmt(&self.id, f)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smt2` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smt2` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c86fec43155bf3fb0b68263455898639e53f81212f2a7013adf09bf2bd70b139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c86fec43155bf3fb0b68263455898639e53f81212f2a7013adf09bf2bd70b139", kill_on_drop: false }`
[INFO] [stdout] c86fec43155bf3fb0b68263455898639e53f81212f2a7013adf09bf2bd70b139