[INFO] fetching crate io_err 0.1.0...
[INFO] testing io_err-0.1.0 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate io_err 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate io_err 0.1.0
[INFO] finished tweaking crates.io crate io_err 0.1.0
[INFO] tweaked toml for crates.io crate io_err 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate io_err 0.1.0 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11a1a9b08f4fbea547bf6b831e884ab9113f52ddf5e292fccc68df7a6382c792
[INFO] running `Command { std: "docker" "start" "-a" "11a1a9b08f4fbea547bf6b831e884ab9113f52ddf5e292fccc68df7a6382c792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11a1a9b08f4fbea547bf6b831e884ab9113f52ddf5e292fccc68df7a6382c792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a1a9b08f4fbea547bf6b831e884ab9113f52ddf5e292fccc68df7a6382c792", kill_on_drop: false }`
[INFO] [stdout] 11a1a9b08f4fbea547bf6b831e884ab9113f52ddf5e292fccc68df7a6382c792
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 43209bdbd2b60b8b684d959c6c34630b645dba3cc9f899f35798657ad6d90a7d
[INFO] running `Command { std: "docker" "start" "-a" "43209bdbd2b60b8b684d959c6c34630b645dba3cc9f899f35798657ad6d90a7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling io_err v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "43209bdbd2b60b8b684d959c6c34630b645dba3cc9f899f35798657ad6d90a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43209bdbd2b60b8b684d959c6c34630b645dba3cc9f899f35798657ad6d90a7d", kill_on_drop: false }`
[INFO] [stdout] 43209bdbd2b60b8b684d959c6c34630b645dba3cc9f899f35798657ad6d90a7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 7ab16465add3fcaff127a2b112103b68efad0050a30ce44d2fb6abdb3324081c
[INFO] running `Command { std: "docker" "start" "-a" "7ab16465add3fcaff127a2b112103b68efad0050a30ce44d2fb6abdb3324081c", kill_on_drop: false }`
[INFO] [stderr]    Compiling io_err v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "7ab16465add3fcaff127a2b112103b68efad0050a30ce44d2fb6abdb3324081c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab16465add3fcaff127a2b112103b68efad0050a30ce44d2fb6abdb3324081c", kill_on_drop: false }`
[INFO] [stdout] 7ab16465add3fcaff127a2b112103b68efad0050a30ce44d2fb6abdb3324081c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] feeff439c0d551f69d1fcee772f9a133103f233ca72f0b4a068aebbab51dce41
[INFO] running `Command { std: "docker" "start" "-a" "feeff439c0d551f69d1fcee772f9a133103f233ca72f0b4a068aebbab51dce41", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/io_err/52b053e6d946c2e2/deps/io_err-52b053e6d946c2e2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io_err
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - err (line 6) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - err (line 6) stdout ----
[INFO] [stdout] error: cannot find macro `err` in this scope
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | let error = err!(other, "another error");
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 6 + use io_err::err;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `err` in this scope
[INFO] [stdout]  --> src/lib.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | let other = err!("another unspecified error, will be categorized as `Other`");
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 6 + use io_err::err;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `err` in this scope
[INFO] [stdout]  --> src/lib.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 | let result = err!(("this error will be encapsulated under an Err()"));
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 6 + use io_err::err;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `err` in this scope
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         err!(("you died in the process"))? // this will return early
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout]  6 + use io_err::err;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `err` in this scope
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         err!((permission_denied, "you are not the chosen one"))?
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout]  6 + use io_err::err;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `random` in this scope
[INFO] [stdout]   --> src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     if random() {
[INFO] [stdout]    |        ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout]  6 + use std::random::random;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]   --> src/lib.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn chosen_one<T>(ty: T) -> Result<T> {
[INFO] [stdout]    |                            ^^^^^^ - supplied 1 generic argument
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            expected 2 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn chosen_one<T>(ty: T) -> Result<T, E> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `chosen` in this scope
[INFO] [stdout]   --> src/lib.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     } else if !chosen() {
[INFO] [stdout]    |                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - err (line 6)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "feeff439c0d551f69d1fcee772f9a133103f233ca72f0b4a068aebbab51dce41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feeff439c0d551f69d1fcee772f9a133103f233ca72f0b4a068aebbab51dce41", kill_on_drop: false }`
[INFO] [stdout] feeff439c0d551f69d1fcee772f9a133103f233ca72f0b4a068aebbab51dce41
