[INFO] fetching crate base-traits 0.0.13...
[INFO] checking base-traits-0.0.13 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate base-traits 0.0.13 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate base-traits 0.0.13
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate base-traits 0.0.13
[INFO] tweaked toml for crates.io crate base-traits 0.0.13 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate base-traits 0.0.13 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate base-traits 0.0.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b61a49ef547058016c1e543ea5c1b862139bcc07a802482e0e9686d38315e43e
[INFO] running `Command { std: "docker" "start" "-a" "b61a49ef547058016c1e543ea5c1b862139bcc07a802482e0e9686d38315e43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b61a49ef547058016c1e543ea5c1b862139bcc07a802482e0e9686d38315e43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61a49ef547058016c1e543ea5c1b862139bcc07a802482e0e9686d38315e43e", kill_on_drop: false }`
[INFO] [stdout] b61a49ef547058016c1e543ea5c1b862139bcc07a802482e0e9686d38315e43e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab1b0247386a5e48e7a0a39563659b0e3b5f1e10eb568d04eee47b169e9fc67a
[INFO] running `Command { std: "docker" "start" "-a" "ab1b0247386a5e48e7a0a39563659b0e3b5f1e10eb568d04eee47b169e9fc67a", kill_on_drop: false }`
[INFO] [stderr]     Checking base-traits v0.0.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> examples/price-to_f64.rs:36:46
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let ss : f64 = values.iter().map(|v| (v - mean)).map(|v| v * v).sum();
[INFO] [stdout]    |                                              ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -         let ss : f64 = values.iter().map(|v| (v - mean)).map(|v| v * v).sum();
[INFO] [stdout] 36 +         let ss : f64 = values.iter().map(|v| v - mean).map(|v| v * v).sum();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: is_empty::IsEmpty` is not satisfied
[INFO] [stdout]     --> src/traits/is_empty.rs:1017:37
[INFO] [stdout]      |
[INFO] [stdout] 1017 |                 let ie = as_IsEmpty(&s);
[INFO] [stdout]      |                          ---------- ^^ the trait `is_empty::IsEmpty` is not implemented for `Box<String>`
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `is_empty::IsEmpty`:
[INFO] [stdout]                &[T; N]
[INFO] [stdout]                &[T]
[INFO] [stdout]                &std::ffi::CStr
[INFO] [stdout]                &std::path::Path
[INFO] [stdout]                &std::path::PathBuf
[INFO] [stdout]                &str
[INFO] [stdout]                RangeFull
[INFO] [stdout]                RangeTo<Idx>
[INFO] [stdout]              and 18 others
[INFO] [stdout] note: required by a bound in `is_empty::tests::as_IsEmpty`
[INFO] [stdout]     --> src/traits/is_empty.rs:547:23
[INFO] [stdout]      |
[INFO] [stdout] 547  |     fn as_IsEmpty<T : IsEmpty>(t : &T) -> &impl IsEmpty {
[INFO] [stdout]      |                       ^^^^^^^ required by this bound in `as_IsEmpty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: is_empty::IsEmpty` is not satisfied
[INFO] [stdout]     --> src/traits/is_empty.rs:1017:26
[INFO] [stdout]      |
[INFO] [stdout] 1017 |                 let ie = as_IsEmpty(&s);
[INFO] [stdout]      |                          ^^^^^^^^^^^^^^ the trait `is_empty::IsEmpty` is not implemented for `Box<String>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `is_empty::IsEmpty`:
[INFO] [stdout]                &[T; N]
[INFO] [stdout]                &[T]
[INFO] [stdout]                &std::ffi::CStr
[INFO] [stdout]                &std::path::Path
[INFO] [stdout]                &std::path::PathBuf
[INFO] [stdout]                &str
[INFO] [stdout]                RangeFull
[INFO] [stdout]                RangeTo<Idx>
[INFO] [stdout]              and 18 others
[INFO] [stdout] note: required by a bound in `is_empty::tests::as_IsEmpty`
[INFO] [stdout]     --> src/traits/is_empty.rs:547:23
[INFO] [stdout]      |
[INFO] [stdout] 547  |     fn as_IsEmpty<T : IsEmpty>(t : &T) -> &impl IsEmpty {
[INFO] [stdout]      |                       ^^^^^^^ required by this bound in `as_IsEmpty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: is_empty::IsEmpty` is not satisfied
[INFO] [stdout]     --> src/traits/is_empty.rs:1019:25
[INFO] [stdout]      |
[INFO] [stdout] 1019 |                 assert!(ie.is_empty());
[INFO] [stdout]      |                         ^^^^^^^^^^^^^ the trait `is_empty::IsEmpty` is not implemented for `Box<String>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `is_empty::IsEmpty`:
[INFO] [stdout]                &[T; N]
[INFO] [stdout]                &[T]
[INFO] [stdout]                &std::ffi::CStr
[INFO] [stdout]                &std::path::Path
[INFO] [stdout]                &std::path::PathBuf
[INFO] [stdout]                &str
[INFO] [stdout]                RangeFull
[INFO] [stdout]                RangeTo<Idx>
[INFO] [stdout]              and 18 others
[INFO] [stdout] note: required by a bound in `is_empty::tests::as_IsEmpty`
[INFO] [stdout]     --> src/traits/is_empty.rs:547:23
[INFO] [stdout]      |
[INFO] [stdout] 547  |     fn as_IsEmpty<T : IsEmpty>(t : &T) -> &impl IsEmpty {
[INFO] [stdout]      |                       ^^^^^^^ required by this bound in `as_IsEmpty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: is_empty::IsEmpty` is not satisfied
[INFO] [stdout]     --> src/traits/is_empty.rs:1028:37
[INFO] [stdout]      |
[INFO] [stdout] 1028 |                 let ie = as_IsEmpty(&s);
[INFO] [stdout]      |                          ---------- ^^ the trait `is_empty::IsEmpty` is not implemented for `Box<String>`
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `is_empty::IsEmpty`:
[INFO] [stdout]                &[T; N]
[INFO] [stdout]                &[T]
[INFO] [stdout]                &std::ffi::CStr
[INFO] [stdout]                &std::path::Path
[INFO] [stdout]                &std::path::PathBuf
[INFO] [stdout]                &str
[INFO] [stdout]                RangeFull
[INFO] [stdout]                RangeTo<Idx>
[INFO] [stdout]              and 18 others
[INFO] [stdout] note: required by a bound in `is_empty::tests::as_IsEmpty`
[INFO] [stdout]     --> src/traits/is_empty.rs:547:23
[INFO] [stdout]      |
[INFO] [stdout] 547  |     fn as_IsEmpty<T : IsEmpty>(t : &T) -> &impl IsEmpty {
[INFO] [stdout]      |                       ^^^^^^^ required by this bound in `as_IsEmpty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: is_empty::IsEmpty` is not satisfied
[INFO] [stdout]     --> src/traits/is_empty.rs:1028:26
[INFO] [stdout]      |
[INFO] [stdout] 1028 |                 let ie = as_IsEmpty(&s);
[INFO] [stdout]      |                          ^^^^^^^^^^^^^^ the trait `is_empty::IsEmpty` is not implemented for `Box<String>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `is_empty::IsEmpty`:
[INFO] [stdout]                &[T; N]
[INFO] [stdout]                &[T]
[INFO] [stdout]                &std::ffi::CStr
[INFO] [stdout]                &std::path::Path
[INFO] [stdout]                &std::path::PathBuf
[INFO] [stdout]                &str
[INFO] [stdout]                RangeFull
[INFO] [stdout]                RangeTo<Idx>
[INFO] [stdout]              and 18 others
[INFO] [stdout] note: required by a bound in `is_empty::tests::as_IsEmpty`
[INFO] [stdout]     --> src/traits/is_empty.rs:547:23
[INFO] [stdout]      |
[INFO] [stdout] 547  |     fn as_IsEmpty<T : IsEmpty>(t : &T) -> &impl IsEmpty {
[INFO] [stdout]      |                       ^^^^^^^ required by this bound in `as_IsEmpty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: is_empty::IsEmpty` is not satisfied
[INFO] [stdout]     --> src/traits/is_empty.rs:1030:26
[INFO] [stdout]      |
[INFO] [stdout] 1030 |                 assert!(!ie.is_empty());
[INFO] [stdout]      |                          ^^^^^^^^^^^^^ the trait `is_empty::IsEmpty` is not implemented for `Box<String>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `is_empty::IsEmpty`:
[INFO] [stdout]                &[T; N]
[INFO] [stdout]                &[T]
[INFO] [stdout]                &std::ffi::CStr
[INFO] [stdout]                &std::path::Path
[INFO] [stdout]                &std::path::PathBuf
[INFO] [stdout]                &str
[INFO] [stdout]                RangeFull
[INFO] [stdout]                RangeTo<Idx>
[INFO] [stdout]              and 18 others
[INFO] [stdout] note: required by a bound in `is_empty::tests::as_IsEmpty`
[INFO] [stdout]     --> src/traits/is_empty.rs:547:23
[INFO] [stdout]      |
[INFO] [stdout] 547  |     fn as_IsEmpty<T : IsEmpty>(t : &T) -> &impl IsEmpty {
[INFO] [stdout]      |                       ^^^^^^^ required by this bound in `as_IsEmpty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: is_zero::IsZero` is not satisfied
[INFO] [stdout]    --> src/traits/is_zero.rs:401:36
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 let ie = as_IsZero(&v);
[INFO] [stdout]     |                          --------- ^^ the trait `is_zero::IsZero` is not implemented for `Box<f64>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `is_zero::IsZero`:
[INFO] [stdout]               ExitStatus
[INFO] [stdout]               char
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]             and 9 others
[INFO] [stdout] note: required by a bound in `is_zero::tests::as_IsZero`
[INFO] [stdout]    --> src/traits/is_zero.rs:184:22
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn as_IsZero<T : IsZero>(t : &T) -> &impl IsZero {
[INFO] [stdout]     |                      ^^^^^^ required by this bound in `as_IsZero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: is_zero::IsZero` is not satisfied
[INFO] [stdout]    --> src/traits/is_zero.rs:401:26
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 let ie = as_IsZero(&v);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ the trait `is_zero::IsZero` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `is_zero::IsZero`:
[INFO] [stdout]               ExitStatus
[INFO] [stdout]               char
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]             and 9 others
[INFO] [stdout] note: required by a bound in `is_zero::tests::as_IsZero`
[INFO] [stdout]    --> src/traits/is_zero.rs:184:22
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn as_IsZero<T : IsZero>(t : &T) -> &impl IsZero {
[INFO] [stdout]     |                      ^^^^^^ required by this bound in `as_IsZero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: is_zero::IsZero` is not satisfied
[INFO] [stdout]    --> src/traits/is_zero.rs:403:25
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 assert!(ie.is_zero());
[INFO] [stdout]     |                         ^^^^^^^^^^^^ the trait `is_zero::IsZero` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `is_zero::IsZero`:
[INFO] [stdout]               ExitStatus
[INFO] [stdout]               char
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]             and 9 others
[INFO] [stdout] note: required by a bound in `is_zero::tests::as_IsZero`
[INFO] [stdout]    --> src/traits/is_zero.rs:184:22
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn as_IsZero<T : IsZero>(t : &T) -> &impl IsZero {
[INFO] [stdout]     |                      ^^^^^^ required by this bound in `as_IsZero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: is_zero::IsZero` is not satisfied
[INFO] [stdout]    --> src/traits/is_zero.rs:412:36
[INFO] [stdout]     |
[INFO] [stdout] 412 |                 let ie = as_IsZero(v);
[INFO] [stdout]     |                          --------- ^ the trait `is_zero::IsZero` is not implemented for `Box<f64>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `is_zero::IsZero`:
[INFO] [stdout]               ExitStatus
[INFO] [stdout]               char
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]             and 9 others
[INFO] [stdout] note: required by a bound in `is_zero::tests::as_IsZero`
[INFO] [stdout]    --> src/traits/is_zero.rs:184:22
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn as_IsZero<T : IsZero>(t : &T) -> &impl IsZero {
[INFO] [stdout]     |                      ^^^^^^ required by this bound in `as_IsZero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: is_zero::IsZero` is not satisfied
[INFO] [stdout]    --> src/traits/is_zero.rs:412:26
[INFO] [stdout]     |
[INFO] [stdout] 412 |                 let ie = as_IsZero(v);
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the trait `is_zero::IsZero` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `is_zero::IsZero`:
[INFO] [stdout]               ExitStatus
[INFO] [stdout]               char
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]             and 9 others
[INFO] [stdout] note: required by a bound in `is_zero::tests::as_IsZero`
[INFO] [stdout]    --> src/traits/is_zero.rs:184:22
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn as_IsZero<T : IsZero>(t : &T) -> &impl IsZero {
[INFO] [stdout]     |                      ^^^^^^ required by this bound in `as_IsZero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: is_zero::IsZero` is not satisfied
[INFO] [stdout]    --> src/traits/is_zero.rs:414:25
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 assert!(ie.is_zero());
[INFO] [stdout]     |                         ^^^^^^^^^^^^ the trait `is_zero::IsZero` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `is_zero::IsZero`:
[INFO] [stdout]               ExitStatus
[INFO] [stdout]               char
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]             and 9 others
[INFO] [stdout] note: required by a bound in `is_zero::tests::as_IsZero`
[INFO] [stdout]    --> src/traits/is_zero.rs:184:22
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn as_IsZero<T : IsZero>(t : &T) -> &impl IsZero {
[INFO] [stdout]     |                      ^^^^^^ required by this bound in `as_IsZero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:788:33
[INFO] [stdout]     |
[INFO] [stdout] 788 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ------ ^^ the trait `len::Len` is not implemented for `Box<String>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:788:26
[INFO] [stdout]     |
[INFO] [stdout] 788 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ^^^^^^^^^^ the trait `len::Len` is not implemented for `Box<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:790:31
[INFO] [stdout]     |
[INFO] [stdout] 790 |                 assert_eq!(0, ie.len());
[INFO] [stdout]     |                               ^^^^^^^^ the trait `len::Len` is not implemented for `Box<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:799:33
[INFO] [stdout]     |
[INFO] [stdout] 799 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ------ ^^ the trait `len::Len` is not implemented for `Box<String>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:799:26
[INFO] [stdout]     |
[INFO] [stdout] 799 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ^^^^^^^^^^ the trait `len::Len` is not implemented for `Box<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:801:31
[INFO] [stdout]     |
[INFO] [stdout] 801 |                 assert_ne!(0, ie.len());
[INFO] [stdout]     |                               ^^^^^^^^ the trait `len::Len` is not implemented for `Box<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::rc::Rc<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:818:33
[INFO] [stdout]     |
[INFO] [stdout] 818 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ------ ^^ the trait `len::Len` is not implemented for `std::rc::Rc<String>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::rc::Rc<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:818:26
[INFO] [stdout]     |
[INFO] [stdout] 818 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ^^^^^^^^^^ the trait `len::Len` is not implemented for `std::rc::Rc<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::rc::Rc<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:820:31
[INFO] [stdout]     |
[INFO] [stdout] 820 |                 assert_eq!(0, ie.len());
[INFO] [stdout]     |                               ^^^^^^^^ the trait `len::Len` is not implemented for `std::rc::Rc<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::rc::Rc<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:829:33
[INFO] [stdout]     |
[INFO] [stdout] 829 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ------ ^^ the trait `len::Len` is not implemented for `std::rc::Rc<String>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::rc::Rc<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:829:26
[INFO] [stdout]     |
[INFO] [stdout] 829 |                 let ie = as_Len(&s);
[INFO] [stdout]     |                          ^^^^^^^^^^ the trait `len::Len` is not implemented for `std::rc::Rc<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::rc::Rc<String>: len::Len` is not satisfied
[INFO] [stdout]    --> src/traits/len.rs:831:31
[INFO] [stdout]     |
[INFO] [stdout] 831 |                 assert_ne!(0, ie.len());
[INFO] [stdout]     |                               ^^^^^^^^ the trait `len::Len` is not implemented for `std::rc::Rc<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `len::Len`:
[INFO] [stdout]               &[T; N]
[INFO] [stdout]               &[T]
[INFO] [stdout]               &std::ffi::CStr
[INFO] [stdout]               &std::path::Path
[INFO] [stdout]               &std::path::PathBuf
[INFO] [stdout]               &str
[INFO] [stdout]               String
[INFO] [stdout]               Vec<T>
[INFO] [stdout]             and 13 others
[INFO] [stdout] note: required by a bound in `len::tests::as_Len`
[INFO] [stdout]    --> src/traits/len.rs:404:19
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn as_Len<T : Len>(t : &T) -> &impl Len {
[INFO] [stdout]     |                   ^^^ required by this bound in `as_Len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: to_f64::ToF64` is not satisfied
[INFO] [stdout]    --> src/traits/to_f64.rs:335:35
[INFO] [stdout]     |
[INFO] [stdout] 335 |                 let ie = as_ToF64(&v);
[INFO] [stdout]     |                          -------- ^^ the trait `to_f64::ToF64` is not implemented for `Box<f64>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `to_f64::ToF64`:
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i8
[INFO] [stdout]               isize
[INFO] [stdout]             and 6 others
[INFO] [stdout] note: required by a bound in `to_f64::tests::as_ToF64`
[INFO] [stdout]    --> src/traits/to_f64.rs:95:21
[INFO] [stdout]     |
[INFO] [stdout] 95  |     fn as_ToF64<T : ToF64>(t : &T) -> &impl ToF64 {
[INFO] [stdout]     |                     ^^^^^ required by this bound in `as_ToF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: to_f64::ToF64` is not satisfied
[INFO] [stdout]    --> src/traits/to_f64.rs:335:26
[INFO] [stdout]     |
[INFO] [stdout] 335 |                 let ie = as_ToF64(&v);
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the trait `to_f64::ToF64` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `to_f64::ToF64`:
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i8
[INFO] [stdout]               isize
[INFO] [stdout]             and 6 others
[INFO] [stdout] note: required by a bound in `to_f64::tests::as_ToF64`
[INFO] [stdout]    --> src/traits/to_f64.rs:95:21
[INFO] [stdout]     |
[INFO] [stdout] 95  |     fn as_ToF64<T : ToF64>(t : &T) -> &impl ToF64 {
[INFO] [stdout]     |                     ^^^^^ required by this bound in `as_ToF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: to_f64::ToF64` is not satisfied
[INFO] [stdout]    --> src/traits/to_f64.rs:337:33
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 assert_eq!(0.0, ie.to_f64());
[INFO] [stdout]     |                                 ^^^^^^^^^^^ the trait `to_f64::ToF64` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `to_f64::ToF64`:
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i8
[INFO] [stdout]               isize
[INFO] [stdout]             and 6 others
[INFO] [stdout] note: required by a bound in `to_f64::tests::as_ToF64`
[INFO] [stdout]    --> src/traits/to_f64.rs:95:21
[INFO] [stdout]     |
[INFO] [stdout] 95  |     fn as_ToF64<T : ToF64>(t : &T) -> &impl ToF64 {
[INFO] [stdout]     |                     ^^^^^ required by this bound in `as_ToF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: to_f64::ToF64` is not satisfied
[INFO] [stdout]    --> src/traits/to_f64.rs:346:35
[INFO] [stdout]     |
[INFO] [stdout] 346 |                 let ie = as_ToF64(v);
[INFO] [stdout]     |                          -------- ^ the trait `to_f64::ToF64` is not implemented for `Box<f64>`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `to_f64::ToF64`:
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i8
[INFO] [stdout]               isize
[INFO] [stdout]             and 6 others
[INFO] [stdout] note: required by a bound in `to_f64::tests::as_ToF64`
[INFO] [stdout]    --> src/traits/to_f64.rs:95:21
[INFO] [stdout]     |
[INFO] [stdout] 95  |     fn as_ToF64<T : ToF64>(t : &T) -> &impl ToF64 {
[INFO] [stdout]     |                     ^^^^^ required by this bound in `as_ToF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: to_f64::ToF64` is not satisfied
[INFO] [stdout]    --> src/traits/to_f64.rs:346:26
[INFO] [stdout]     |
[INFO] [stdout] 346 |                 let ie = as_ToF64(v);
[INFO] [stdout]     |                          ^^^^^^^^^^^ the trait `to_f64::ToF64` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `to_f64::ToF64`:
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i8
[INFO] [stdout]               isize
[INFO] [stdout]             and 6 others
[INFO] [stdout] note: required by a bound in `to_f64::tests::as_ToF64`
[INFO] [stdout]    --> src/traits/to_f64.rs:95:21
[INFO] [stdout]     |
[INFO] [stdout] 95  |     fn as_ToF64<T : ToF64>(t : &T) -> &impl ToF64 {
[INFO] [stdout]     |                     ^^^^^ required by this bound in `as_ToF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Box<f64>: to_f64::ToF64` is not satisfied
[INFO] [stdout]    --> src/traits/to_f64.rs:348:33
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 assert_eq!(0.0, ie.to_f64());
[INFO] [stdout]     |                                 ^^^^^^^^^^^ the trait `to_f64::ToF64` is not implemented for `Box<f64>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `to_f64::ToF64`:
[INFO] [stdout]               f32
[INFO] [stdout]               f64
[INFO] [stdout]               i128
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i8
[INFO] [stdout]               isize
[INFO] [stdout]             and 6 others
[INFO] [stdout] note: required by a bound in `to_f64::tests::as_ToF64`
[INFO] [stdout]    --> src/traits/to_f64.rs:95:21
[INFO] [stdout]     |
[INFO] [stdout] 95  |     fn as_ToF64<T : ToF64>(t : &T) -> &impl ToF64 {
[INFO] [stdout]     |                     ^^^^^ required by this bound in `as_ToF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `base-traits` (lib test) due to 30 previous errors
[INFO] running `Command { std: "docker" "inspect" "ab1b0247386a5e48e7a0a39563659b0e3b5f1e10eb568d04eee47b169e9fc67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab1b0247386a5e48e7a0a39563659b0e3b5f1e10eb568d04eee47b169e9fc67a", kill_on_drop: false }`
[INFO] [stdout] ab1b0247386a5e48e7a0a39563659b0e3b5f1e10eb568d04eee47b169e9fc67a
