[INFO] fetching crate canonical 0.4.2...
[INFO] checking canonical-0.4.2 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate canonical 0.4.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate canonical 0.4.2 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate canonical 0.4.2
[INFO] finished tweaking crates.io crate canonical 0.4.2
[INFO] tweaked toml for crates.io crate canonical 0.4.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] 95edaaf441251ebf50c4113fcd569b1a144e33814810625b4f5ec5f4dbba688d
[INFO] running `Command { std: "docker" "start" "-a" "95edaaf441251ebf50c4113fcd569b1a144e33814810625b4f5ec5f4dbba688d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95edaaf441251ebf50c4113fcd569b1a144e33814810625b4f5ec5f4dbba688d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95edaaf441251ebf50c4113fcd569b1a144e33814810625b4f5ec5f4dbba688d", kill_on_drop: false }`
[INFO] [stdout] 95edaaf441251ebf50c4113fcd569b1a144e33814810625b4f5ec5f4dbba688d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b8b450c857f08b426bcfd7df66b226a8e8d86ecdd6d09e44e166c1dfb60136f
[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" "8b8b450c857f08b426bcfd7df66b226a8e8d86ecdd6d09e44e166c1dfb60136f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking canonical v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking canonical_host v0.4.2
[INFO] [stderr]     Checking canonical_fuzz v0.4.0
[INFO] [stdout] error[E0432]: unresolved import `arbitrary`
[INFO] [stdout]  --> tests/fuzz_repr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use arbitrary::Arbitrary;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `arbitrary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `arbitrary`
[INFO] [stdout]   --> tests/fuzz_repr.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |         u: &mut arbitrary::Unstructured<'_>,
[INFO] [stdout]    |                 ^^^^^^^^^ use of undeclared crate or module `arbitrary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `arbitrary`
[INFO] [stdout]   --> tests/fuzz_repr.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     ) -> arbitrary::Result<Self> {
[INFO] [stdout]    |          ^^^^^^^^^ use of undeclared crate or module `arbitrary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `canonical`
[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] [stdout] error[E0432]: unresolved import `arbitrary`
[INFO] [stdout]  --> tests/derive.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use arbitrary::Arbitrary;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `arbitrary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:21:42
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:27:42
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:30:42
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:33:42
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:36:42
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:56:42
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:59:42
[INFO] [stdout]    |
[INFO] [stdout] 59 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:62:42
[INFO] [stdout]    |
[INFO] [stdout] 62 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:65:42
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Clone, Canon, PartialEq, Debug, Arbitrary)]
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:78:31
[INFO] [stdout]    |
[INFO] [stdout] 78 | #[derive(Clone, Canon, Debug, Arbitrary)]
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:84:31
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[derive(Clone, Canon, Debug, Arbitrary)]
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Arbitrary`
[INFO] [stdout]   --> tests/derive.rs:93:31
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Clone, Canon, Debug, Arbitrary, PartialEq)]
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MemStore: Store` is not satisfied
[INFO] [stdout]   --> tests/identifier.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let id_a = <MemStore as Store>::ident(&a);
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Store` is not implemented for `MemStore`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MemStore: Store` is not satisfied
[INFO] [stdout]   --> tests/identifier.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let id_a = <MemStore as Store>::ident(&a);
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Store` is not implemented for `MemStore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `put` found for struct `MemStore` in the current scope
[INFO] [stdout]   --> tests/identifier.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let id_b = store.put(&a).unwrap();
[INFO] [stdout]    |                      ^^^ method not found in `MemStore`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 7  | use canonical::store::Store;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[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] [stdout] error[E0599]: no method named `put` found for struct `MemStore` in the current scope
[INFO] [stdout]   --> tests/handle.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let id = store.put(&repr).unwrap();
[INFO] [stdout]    |                    ^^^ method not found in `MemStore`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 7  | use canonical::store::Store;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for struct `MemStore` in the current scope
[INFO] [stdout]   --> tests/handle.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let restored = store.get(&id).unwrap();
[INFO] [stdout]    |                          ^^^ method not found in `MemStore`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 7  | use canonical::store::Store;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Store`
[INFO] [stdout]  --> tests/handle.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use canonical::{Repr, Store};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MemStore: Store` is not satisfied
[INFO] [stdout]    --> tests/derive.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 |     T: Canon<MemStore> + Clone + std::fmt::Debug + PartialEq,
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^ the trait `Store` is not implemented for `MemStore`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/canon.rs:30:20
[INFO] [stdout]     |
[INFO] [stdout] 30  | pub trait Canon<S: Store>: Sized + Clone {
[INFO] [stdout]     |                    ----- required by this bound in `Canon`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8b8b450c857f08b426bcfd7df66b226a8e8d86ecdd6d09e44e166c1dfb60136f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8b450c857f08b426bcfd7df66b226a8e8d86ecdd6d09e44e166c1dfb60136f", kill_on_drop: false }`
[INFO] [stdout] 8b8b450c857f08b426bcfd7df66b226a8e8d86ecdd6d09e44e166c1dfb60136f