[INFO] fetching crate hammer 0.1.0...
[INFO] checking hammer-0.1.0 against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119825
[INFO] extracting crate hammer 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate hammer 0.1.0 on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hammer 0.1.0
[INFO] finished tweaking crates.io crate hammer 0.1.0
[INFO] tweaked toml for crates.io crate hammer 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded staticfile v0.4.0
[INFO] [stderr]   Downloaded error v0.1.9
[INFO] [stderr]   Downloaded sequence_trie v0.2.1
[INFO] [stderr]   Downloaded iron v0.5.1
[INFO] [stderr]   Downloaded modifier v0.1.0
[INFO] [stderr]   Downloaded plugin v0.2.6
[INFO] [stderr]   Downloaded conduit-mime-types v0.7.3
[INFO] [stderr]   Downloaded mount v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 160cfb793b28e0bb25ca3c5d8e5e9e8499eee9e56563a36eb770fdd91fb6f84c
[INFO] running `Command { std: "docker" "start" "-a" "160cfb793b28e0bb25ca3c5d8e5e9e8499eee9e56563a36eb770fdd91fb6f84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "160cfb793b28e0bb25ca3c5d8e5e9e8499eee9e56563a36eb770fdd91fb6f84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "160cfb793b28e0bb25ca3c5d8e5e9e8499eee9e56563a36eb770fdd91fb6f84c", kill_on_drop: false }`
[INFO] [stdout] 160cfb793b28e0bb25ca3c5d8e5e9e8499eee9e56563a36eb770fdd91fb6f84c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88f67150d5bf70d22e46af05b9cf410553e027bf4a240c2e050ba0e417746293
[INFO] running `Command { std: "docker" "start" "-a" "88f67150d5bf70d22e46af05b9cf410553e027bf4a240c2e050ba0e417746293", kill_on_drop: false }`
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking sequence_trie v0.2.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking mount v0.3.0
[INFO] [stderr]     Checking staticfile v0.4.0
[INFO] [stderr]     Checking hammer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "88f67150d5bf70d22e46af05b9cf410553e027bf4a240c2e050ba0e417746293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f67150d5bf70d22e46af05b9cf410553e027bf4a240c2e050ba0e417746293", kill_on_drop: false }`
[INFO] [stdout] 88f67150d5bf70d22e46af05b9cf410553e027bf4a240c2e050ba0e417746293
[INFO] checking hammer-0.1.0 against try#925e66ec5d7d73da31ddd13e53f21e4674feb4ba for pr-119825
[INFO] extracting crate hammer 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate hammer 0.1.0 on toolchain 925e66ec5d7d73da31ddd13e53f21e4674feb4ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hammer 0.1.0
[INFO] finished tweaking crates.io crate hammer 0.1.0
[INFO] tweaked toml for crates.io crate hammer 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb9a7f52598371bb6b71dd19827b0af4a86fc58d80c7a84fc3c49da74a0b2095
[INFO] running `Command { std: "docker" "start" "-a" "eb9a7f52598371bb6b71dd19827b0af4a86fc58d80c7a84fc3c49da74a0b2095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb9a7f52598371bb6b71dd19827b0af4a86fc58d80c7a84fc3c49da74a0b2095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9a7f52598371bb6b71dd19827b0af4a86fc58d80c7a84fc3c49da74a0b2095", kill_on_drop: false }`
[INFO] [stdout] eb9a7f52598371bb6b71dd19827b0af4a86fc58d80c7a84fc3c49da74a0b2095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1130898185cf02a43f2a7a8e4c74dc5ffa1792f48c112b68ea5feeb5a7709e7
[INFO] running `Command { std: "docker" "start" "-a" "b1130898185cf02a43f2a7a8e4c74dc5ffa1792f48c112b68ea5feeb5a7709e7", kill_on_drop: false }`
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking sequence_trie v0.2.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stdout] error[E0592]: duplicate definitions with name `is`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-0.1.9/src/lib.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn is<E: Error>(&self) -> bool { self.get_type() == TypeId::of::<E>() }
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `is`
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn is<E: Error + Send>(&self) -> bool { self.get_type() == TypeId::of::<E>() }
[INFO] [stdout]    |     ----------------------------------------- other definition for `is`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-0.1.9/src/lib.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn downcast<E: Error>(&self) -> Option<&E> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `downcast`
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn downcast<E: Error + Send>(&self) -> Option<&E> {
[INFO] [stdout]    |     ----------------------------------------------------- other definition for `downcast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0592`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `error` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b1130898185cf02a43f2a7a8e4c74dc5ffa1792f48c112b68ea5feeb5a7709e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1130898185cf02a43f2a7a8e4c74dc5ffa1792f48c112b68ea5feeb5a7709e7", kill_on_drop: false }`
[INFO] [stdout] b1130898185cf02a43f2a7a8e4c74dc5ffa1792f48c112b68ea5feeb5a7709e7