[INFO] fetching crate ift 0.3.2...
[INFO] testing ift-0.3.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate ift 0.3.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate ift 0.3.2
[INFO] finished tweaking crates.io crate ift 0.3.2
[INFO] tweaked toml for crates.io crate ift 0.3.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ift 0.3.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 269 packages to latest compatible versions
[INFO] [stderr]       Adding actix v0.7.9 (available: v0.13.5)
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[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.8)
[INFO] [stderr]       Adding pnet v0.22.0 (available: v0.35.0)
[INFO] [stderr]       Adding predicates v1.0.8 (available: v3.1.3)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a2f10ab1be31e311fc7fbe4b0fe8001cc15cb1f69f03fa66eb3a6719c639922
[INFO] running `Command { std: "docker" "start" "-a" "8a2f10ab1be31e311fc7fbe4b0fe8001cc15cb1f69f03fa66eb3a6719c639922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a2f10ab1be31e311fc7fbe4b0fe8001cc15cb1f69f03fa66eb3a6719c639922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2f10ab1be31e311fc7fbe4b0fe8001cc15cb1f69f03fa66eb3a6719c639922", kill_on_drop: false }`
[INFO] [stdout] 8a2f10ab1be31e311fc7fbe4b0fe8001cc15cb1f69f03fa66eb3a6719c639922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fc8caf3041f6e3c43566a1f6c4d65eef8d1dbfabd1f22f254218e71b5357524
[INFO] running `Command { std: "docker" "start" "-a" "8fc8caf3041f6e3c43566a1f6c4d65eef8d1dbfabd1f22f254218e71b5357524", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling no-std-net v0.6.0
[INFO] [stderr]    Compiling pnet_base v0.22.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling pnet_base v0.35.0
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling pnet_macros_support v0.22.0
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling pnet v0.22.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling pnet_sys v0.22.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stdout] error: cannot find derive macro `RustcEncodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:253:45
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[derive(PartialEq, Eq, Clone, Debug, Hash, RustcEncodable, RustcDecodable, Copy)]
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcDecodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:253:61
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[derive(PartialEq, Eq, Clone, Debug, Hash, RustcEncodable, RustcDecodable, Copy)]
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcEncodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:275:23
[INFO] [stdout]     |
[INFO] [stdout] 275 | #[derive(Copy, Clone, RustcEncodable, RustcDecodable, Eq, PartialEq)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcDecodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:275:39
[INFO] [stdout]     |
[INFO] [stdout] 275 | #[derive(Copy, Clone, RustcEncodable, RustcDecodable, Eq, PartialEq)]
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `encode` exists for struct `Vec<MultiByteChar>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:357:50
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub struct MultiByteChar {
[INFO] [stdout]     | ------------------------ doesn't satisfy `MultiByteChar: Encodable`
[INFO] [stdout] ...
[INFO] [stdout] 357 |                 (*self.multibyte_chars.borrow()).encode(s)
[INFO] [stdout]     |                                                  ^^^^^^ method cannot be called on `Vec<MultiByteChar>` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `MultiByteChar: Encodable`
[INFO] [stdout]             which is required by `Vec<MultiByteChar>: Encodable`
[INFO] [stdout]             `MultiByteChar: Encodable`
[INFO] [stdout]             which is required by `[MultiByteChar]: Encodable`
[INFO] [stdout] note: the trait `Encodable` must be implemented
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.3.25/src/serialize.rs:851:1
[INFO] [stdout]     |
[INFO] [stdout] 851 | pub trait Encodable {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MultiByteChar: Decodable` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:401:68
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 try!(d.read_struct_field("multibyte_chars", 5, |d| Decodable::decode(d)));
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `Decodable` is not implemented for `MultiByteChar`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:276:1
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub struct MultiByteChar {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: the following other types implement trait `Decodable`:
[INFO] [stdout]               ()
[INFO] [stdout]               (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T10, T11)
[INFO] [stdout]               (T11,)
[INFO] [stdout]               (T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]             and 74 others
[INFO] [stdout]     = note: required for `Vec<MultiByteChar>` to implement `Decodable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntex_pos` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8fc8caf3041f6e3c43566a1f6c4d65eef8d1dbfabd1f22f254218e71b5357524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc8caf3041f6e3c43566a1f6c4d65eef8d1dbfabd1f22f254218e71b5357524", kill_on_drop: false }`
[INFO] [stdout] 8fc8caf3041f6e3c43566a1f6c4d65eef8d1dbfabd1f22f254218e71b5357524